CN114112020B - Determining vibration sensor type - Google Patents
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- CN114112020B CN114112020B CN202111620170.6A CN202111620170A CN114112020B CN 114112020 B CN114112020 B CN 114112020B CN 202111620170 A CN202111620170 A CN 202111620170A CN 114112020 B CN114112020 B CN 114112020B
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- 238000000034 method Methods 0.000 claims description 23
- 230000000712 assembly Effects 0.000 claims description 14
- 238000000429 assembly Methods 0.000 claims description 14
- 239000000463 material Substances 0.000 claims description 14
- 238000004891 communication Methods 0.000 claims description 5
- 230000008878 coupling Effects 0.000 claims description 2
- 238000010168 coupling process Methods 0.000 claims description 2
- 238000005859 coupling reaction Methods 0.000 claims description 2
- 239000003949 liquefied natural gas Substances 0.000 description 11
- 230000007246 mechanism Effects 0.000 description 6
- 238000005452 bending Methods 0.000 description 3
- 239000000446 fuel Substances 0.000 description 3
- 230000015654 memory Effects 0.000 description 3
- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Chemical compound [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 238000004364 calculation method Methods 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 230000004044 response Effects 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01H—MEASUREMENT OF MECHANICAL VIBRATIONS OR ULTRASONIC, SONIC OR INFRASONIC WAVES
- G01H17/00—Measuring mechanical vibrations or ultrasonic, sonic or infrasonic waves, not provided for in the preceding groups
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
- G01D21/00—Measuring or testing not otherwise provided for
- G01D21/02—Measuring two or more variables by means not covered by a single other subclass
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Abstract
The vibration sensor type is determined. A system (100) for determining a vibration sensor type is provided. The system (100) includes a temperature sensor (190 a) configured to measure a temperature of the metering assembly (10 a) and meter electronics (20) communicatively coupled with the temperature sensor (190 a). The meter electronics (20) is configured to determine an electrical characteristic of the temperature sensor (190 a) and compare the electrical characteristic of the temperature sensor (190 a) to an electrical characteristic of one or more temperature sensor types, wherein the one or more temperature sensor types are associated with one or more vibration sensor types.
Description
Technical Field
The embodiments described below relate to vibration sensors, and more particularly to determining a vibration sensor type.
Background
Vibration sensors such as, for example, vibrating densitometers and coriolis flowmeters are generally known and are used to measure mass flow and other information related to material flowing through conduits in the flowmeter. Exemplary coriolis flowmeters are disclosed in U.S. patent 4,109,524, U.S. patent 4,491,025, and reference 31,450 (Re. 31,450). These flow meters have one or more conduits in either a straight or curved configuration. For example, each conduit configuration in a coriolis mass flowmeter has a set of natural modes of vibration, which may be of the simple bending, torsion, or coupling type. Each catheter may be driven to oscillate in a preferred mode.
The flow of material into the flow meter from the connecting line on the inlet side of the flow meter is directed through the conduit(s) and exits the flow meter through the outlet side of the flow meter. The natural modes of vibration of the vibration system are defined in part by the combined mass of the material flowing within the conduit and the conduit.
When no flow is passing through the flow meter, the driving force applied to the conduit(s) causes all points along the conduit(s) to oscillate with the same phase or with a small "zero offset" (which is the time delay measured at zero flow). As material begins to flow through the flowmeter, the coriolis force causes each point along the conduit(s) to have a different phase. For example, the phase at the inlet end of the flow meter lags the phase at the central driver position, while the phase at the outlet leads the phase at the central driver position. Pick-up element (pickoff) on the catheter(s) generates a sinusoidal signal representing the motion of the catheter(s). The signals output from the pick-up elements are processed to determine the time delay between the pick-up elements. The time delay between two or more pick-up elements is proportional to the mass flow rate of the material flowing through the conduit(s).
Meter electronics connected to the driver generates a drive signal that operates the driver and also determines the mass flow rate and/or other properties of the process material from the signal received from the pick-up element. The driver may comprise one of many well known arrangements; however, magnets and opposing drive coils have achieved great success in the flow meter industry. An alternating current is delivered to the drive coil for vibrating the catheter(s) at a desired catheter amplitude and frequency. It is also known in the art to provide the pick-up element as a magnet and coil arrangement very similar to the driver arrangement. However, when the drive receives a current that induces motion, the pick-up element may use the motion provided by the drive to induce a voltage.
Many applications utilize two or more vibration sensors due to various system constraints. For example, a vehicle fueled with Liquefied Natural Gas (LNG) may utilize a first vibration sensor to measure fuel pumped from an LNG storage tank to the LNG vehicle. A second vibration sensor may be used to measure the fuel returned to the LNG tank. The fuel returned to the LNG may have different flow rates, temperatures, etc. Thus, the first and second vibration sensors may be of different types. That is, the first and second vibration sensors may have different resonant frequencies, catheter size(s) and/or shape, etc. Accordingly, meter electronics to be properly configured may need to determine the vibration sensor type of the first and second vibration sensors.
Disclosure of Invention
A system for determining a vibration sensor type is provided. According to an embodiment, the system includes a temperature sensor configured to measure a temperature of the metrology assembly and metrology electronics communicatively coupled with the temperature sensor. The meter electronics is configured to determine an electrical characteristic of the temperature sensor and compare the electrical characteristic of the temperature sensor to an electrical characteristic of one or more temperature sensor types, wherein the one or more temperature sensor types are associated with one or more vibration sensor types.
A method of determining a vibration sensor type is provided. According to one embodiment, the method includes determining an electrical characteristic of a temperature sensor configured to measure a temperature of the metering assembly and comparing the electrical characteristic of the temperature sensor to electrical characteristics of one or more temperature sensor types. The one or more temperature sensor types are associated with one or more vibration sensor types.
Aspects are described.
According to one aspect, a system (100) for determining a vibration sensor type includes a temperature sensor (190 a) configured to measure a temperature of a metering assembly (10 a) and metering electronics (20) communicatively coupled with the temperature sensor (190 a). The meter electronics (20) is configured to determine an electrical characteristic of the temperature sensor (190 a) and compare the electrical characteristic of the temperature sensor (190 a) to an electrical characteristic of one or more temperature sensor types, wherein the one or more temperature sensor types are associated with one or more vibration sensor types.
Preferably, the system (100) further comprises a second temperature sensor (190 b) communicatively coupled to the meter electronics (20), wherein the second temperature sensor (190 b) is configured to measure a temperature of the second meter assembly (10 b). The meter electronics (20) is further configured to determine an electrical characteristic of the second temperature sensor (190 b) and compare the electrical characteristic of the second temperature sensor (190 b) to electrical characteristics of one or more temperature sensor types, wherein the one or more temperature sensor types are associated with one or more vibration sensor types.
Preferably, the electrical characteristic is a temperature to electrical property relationship.
Preferably, the electrical characteristic is a slope of the temperature-to-electrical property relationship.
Preferably, the electrical characteristic is a region in a temperature-to-electrical property relationship.
Preferably, the meter electronics (20) is communicatively coupled with the meter assembly (10 a) and is further configured to communicate with the meter assembly (10 a) based on a correlation between one or more temperature sensor types and one or more vibration sensor types.
According to one aspect, a method of determining a vibration sensor type includes determining an electrical characteristic of a temperature sensor configured to measure a temperature of a metering assembly, and comparing the electrical characteristic of the temperature sensor to electrical characteristics of one or more temperature sensor types, wherein the one or more temperature sensor types are associated with one or more vibration sensor types.
Preferably, the method further comprises determining an electrical characteristic of a second temperature sensor configured to measure a temperature of the second metering assembly, and comparing the second electrical characteristic of the second temperature sensor to electrical characteristics of one or more temperature sensor types, wherein the one or more temperature sensor types are associated with one or more vibration sensor types.
Preferably, the electrical characteristic is a temperature to electrical property relationship.
Preferably, the electrical characteristic is a slope of the temperature-to-electrical property relationship.
Preferably, the electrical characteristic is an area under the temperature-to-electrical property relationship.
Preferably, the method further comprises configuring the meter electronics in communication with the meter assembly to communicate with the meter assembly based on a correlation between one or more temperature sensor types and one or more vibration sensor types.
Drawings
Like reference numerals refer to like elements throughout the several views. It should be understood that the drawings are not necessarily to scale.
Fig. 1 shows a vibration sensor pair 5 comprising a system for determining a vibration sensor type.
Fig. 2 shows a block diagram of a system 100 for determining a vibration sensor type.
Fig. 3 shows a table 300 listing various temperature sensor types and their corresponding characteristics.
Fig. 4 shows a graph 400 of the electrical characteristics of the temperature sensor types 1 to 3 shown in fig. 3.
Fig. 5 illustrates a method 500 for determining a vibration sensor type.
Detailed Description
Fig. 1-5 and the following description depict specific examples that teach those skilled in the art how to make and use the best mode of determining embodiments of the vibration sensor type. For the purposes of teaching inventive principles, some conventional aspects have been simplified or omitted. Those skilled in the art will recognize variations from these examples that fall within the scope of the description. Those skilled in the art will recognize that the features described below may be combined in various ways to form multiple variations in determining the type of vibration sensor. Therefore, the embodiments described below are not limited to the specific examples described below, but are only limited by the claims and the equivalents thereof.
Fig. 1 shows a vibration sensor pair 5 comprising a system for determining a vibration sensor type. A system for determining the type of vibration sensor is described hereinafter with reference to fig. 2 and 3. As shown in fig. 1, the vibration sensor pair 5 includes a first vibration sensor 5a and a second vibration sensor 5b. The first vibration sensor 5a comprises a first metrology assembly 10a and metrology electronics 20. The second vibration sensor 5b comprises a second meter assembly 10b and meter electronics 20. Thus, the meter electronics 20 controls and is configured for the first and second vibration sensors 5a, 5b.
The first and second metering assemblies 10a, 10b are responsive to the mass flow rate and density of the process material. Meter electronics 20 is connected to the first and second meter assemblies 10a, 10b via first and second sets of wires 11a, 11b to provide density, mass flow rate and temperature information, and other information, via path 26. The coriolis flowmeter structure is described, however it will be apparent to those skilled in the art that the present invention may be implemented as a vibrating conduit densitometer, tuning fork densitometer, or the like.
The first and second metering assemblies 10a, 10b include first and second pairs of parallel conduits 13a, 13a 'and 13b, 13b', drive mechanisms 18a, 18b, temperature sensors 190a, 190b, and a pair of left and right pick-up sensors 17al, 17ar and 17bl, 17br. Each of the pair of conduits 13a, 13a 'and 13b, 13b' is curved at two symmetrical positions along the length of the conduits 13a, 13a 'and 13b, 13b' and is substantially parallel over their entire length. As can be appreciated, the first and second metrology assemblies 10a, 10b have left and right pick-up sensors 17al, 17ar and 17bl, 17br and drive mechanisms 18a, 18b of the same type. However, the first and second metering assemblies 10a, 10b do not have the same type of temperature sensor 190a, 190b and conduits 13a, 13a 'and 13b, 13b'.
The conduits 13a, 13a 'and 13b, 13b' are driven in opposite directions about their respective bending axes by the drive mechanisms 18a, 18b and are in a mode known as a first out of phase bending mode of the flowmeter. The drive mechanism 18a, 18b may comprise any of a number of well known arrangements, such as a magnet mounted to the conduits 13a ', 13b' and an opposing coil mounted to the conduits 13a, 13b, and through which an alternating current is passed for vibrating the two conduits 13a, 13a 'and 13b, 13 b'. Appropriate drive signals are applied to the drive mechanisms 18a, 18b by the meter electronics 20.
First and second temperature sensors 190a, 190b are mounted to the conduits 13a ', 13b', respectively, to continuously measure the temperature of the conduits 13a ', 13 b'. The temperature of the conduits 13a ', 13b' and thus the voltage appearing across the first and second temperature sensors 190a, 190b for a given current therethrough is managed by the temperature of the material passing through the conduits 13a ', 13 b'. The temperature dependent voltages appearing across the first and second temperature sensors 190a, 190b are used by the meter electronics 20 to compensate for changes in the modulus of elasticity of the conduits 13a ', 13b' due to any changes in the conduit temperature.
In the illustrated embodiment, the first and second temperature sensors 190a, 190b are Resistance Temperature Detectors (RTDs). Although the embodiments described herein employ RTD sensors, other temperature sensors, such as thermistors, thermocouples, and the like, may be employed in alternative embodiments. As shown, the first and second temperature sensors 190a, 190b are platinum wire RTD sensors. The resistance of the platinum wire changes in response to changes in the temperature of the platinum wire. Thus, the resistances of the first and second temperature sensors 190a, 190b may vary according to a temperature-to-resistance relationship, as shown in the following discussion with respect to fig. 4.
Still referring to fig. 1, meter electronics 20 receives temperature signals from first and second temperature sensors 190a, 190b and left and right sensor signals from first and second left and right pick-up sensors 17al, 17ar and 17bl, 17br via first and second sets of wires 11a, 11 b. Meter electronics 20 provides drive signals to drive mechanisms 18a, 18b and vibrates the first and second pairs of conduits 13a, 13a 'and 13b, 13 b'. Meter electronics 20 processes the left and right sensor signals and the temperature signal to calculate the mass flow rate and density of material through the first and second meter assemblies 10a, 10 b. This information, along with other information, is applied as a signal on path 26 by meter electronics 20. The vibration sensor type of the first and second vibration sensor 5a, 5b is determined, for example, to ensure that the meter electronics 20 is properly configured, as explained in more detail below.
The system.
Fig. 2 shows a block diagram of a system 100 for determining a vibration sensor type. As shown in fig. 2, the system 100 includes first and second metering assemblies 10a, 10b. The first and second metering assemblies 10a, 10b include first and second temperature sensors 190a, 190b, respectively. The system 100 also includes the meter electronics 20 described hereinabove with reference to fig. 1. As shown in fig. 2, meter electronics 20 includes an analog-to-digital converter (ADC) 110 communicatively coupled to first and second temperature sensors 190a, 190b via first and second channels CH1, CH 2. The ADC 110 is also communicatively coupled to a Digital Signal Processor (DSP) 120 via a bus 130. Bus 130 also communicatively couples DSP 120 to processor 140.
The ADC 110 is configured to receive and digitize analog temperature signals from the first and second temperature sensors 190a, 190 b. The analog temperature signals received from the first and second temperature sensors 190a, 190b may be voltages, currents, powers, etc., which carry information about the electrical properties of the first and second temperature sensors 190a, 190 b. In the illustrated embodiment, the electrical property is the resistance of the first and second temperature sensors 190a, 190 b. The digitized temperature signal is provided to DSP 120 via bus 130.
DSP 120 is configured to receive the digitized temperature signal and perform operations thereon. DSP 120 may also be configured to perform operations on other signals, such as sensor signals from first and second left and right pickup sensors 17al, 17ar and 17bl, 17 br. Operations may include filtering, decimation (decimation), transformation between the time and frequency domains, mathematical operations such as addition or multiplication, and so on. Although the DSP 120 is illustrated as a discrete device specifically configured to perform processing on the digitized temperature signals, the DSP 120 may be a software algorithm configured to run on a processor. The DSP 120 is configured to determine the electrical characteristics of the first and second temperature sensors 190a, 190b from the digitized temperature signals. The electrical characteristic may be represented by a digital value, such as a scalar value. The digital value is provided to the processor 140 via the bus 130.
Bus 130 is configured to communicate the digitized temperature signals from ADC 110 to DSP 120. Bus 130 is also configured to communicate digital values representative of the electrical characteristics to processor 140. In one embodiment, bus 130 may be a Serial Peripheral Interface (SPI) bus, however any suitable means of communication between ADC 110 and DSP 120 may be employed in alternative embodiments. Although bus 130 is shown as providing communication between only ADC 110, DSP 120, and processor 140, bus 130 may provide communication between other processor(s), one or more memories (e.g., DRAM, flash memory, hard drive, etc.), input and output ports, etc., not shown in fig. 2. As discussed previously, bus 130 receives digital values from DSP 120 and provides the digital values to processor 140.
The processor 140 may be configured to receive the digital values from the bus 130 and determine the vibration sensor type of the first and second vibration sensors 5a, 5 b. For example, the processor 140 may receive provided digital values representative of the electrical characteristics of the first and second temperature sensors 190a, 190 b. The processor 140 may include a storage device (such as a memory) having one or more temperature sensor types associated with one or more vibration sensor types. The processor 140 may compare digital values representative of the electrical characteristics of the first and second temperature sensors 190a, 190b to one or more temperature sensor types. Based on this comparison, the processor 140 may determine the vibration sensor type of the first and second vibration sensors 5a, 5b, as will be explained in more detail below.
Temperature sensor type.
Fig. 3 shows a table 300 listing various temperature sensor types and their corresponding characteristics. As shown in fig. 3, there are three temperature sensor types, which are listed as temperature sensor types 1 to 3. The characteristics of the temperature sensor type are the operating temperature range, the nominal resistance (R N), the characteristic curve (C) and the tolerance level. The operating temperature range of temperature sensor type 1 is-200 ℃ to 200 ℃, and the operating temperature range of temperature sensor types 2 and 3 is-200 ℃ to 300 ℃. For the three temperature sensor types, the electrical characteristic curve (C) was 3850ppm/K and the tolerance level was class A. However, in alternative embodiments, different and/or alternative temperature ranges, characteristics, and tolerance levels may be employed.
The temperature sensor types may also be different by temperature to electrical property relationships. For example, the temperature sensor type may vary by a celsius to resistance relationship. In the illustrated embodiment, the nominal resistances (R N) of temperature sensor types 1 through 3 at 0℃are 100, 500, and 1000 ohms, respectively. In alternative embodiments, the electrical properties may include, for example, voltage, current, power, etc., as well as alternative values. In the exemplary embodiment shown in fig. 3, the temperature-to-resistance relationship may be determined from the nominal resistance (R N) and the characteristic curve (C). For example, the resistance of the temperature sensor at temperature (T) can be determined using the following equation:
（1）
Thus, for temperature sensor type 1, the resistance is 177 Ω at 200 ℃. Using equation (1), various curves having different temperature to electrical property relationships may be constructed, as shown in the discussion below with reference to fig. 4.
An electrical characteristic curve.
Fig. 4 shows a graph 400 of the electrical characteristics of the temperature sensor types 1 to 3 shown in fig. 3. Graph 400 has a resistance axis 410 and a temperature axis 420. The resistive axis 410 is a resistive axis having units of ohms, however, any suitable electrical property may be employed in alternative embodiments. The temperature axis 420 is in degrees celsius. Although shown in units of ohms and degrees celsius to illustrate the relationship between resistance and temperature (ohms/°c), any suitable unit may be employed in alternative embodiments.
Graph 400 includes electrical characteristics 430 for temperature sensor types 1-3. As shown in fig. 4, electrical characteristic 430 includes a first electrical characteristic 432, a second electrical characteristic 434, and a third electrical characteristic 436, which correspond to temperature sensor types 1-3, respectively. The electrical characteristic curve 430 is shown as a straight line due to the electrical characteristics of the temperature sensor types 1-3. However, alternative embodiments may employ electrical characteristics having non-linear shapes, such as parabolic, piecewise linear shapes, and the like.
In the illustrated embodiment, the first, second and third electrical characteristic curves 432, 434, 436 include first, second and third nominal reference points 432a, 434a, 436a, respectively, at zero degrees celsius. The first, second and third electrical characteristic curves 432, 434, 436 further include first, second and third cryogenic reference points 432b, 434b, 436b, respectively, at-200 degrees celsius. The first, second and third electrical characteristic curves 432, 434, 436 further include first, second and third high temperature reference points 432c, 434c, 436c at 200 degrees celsius. Although electrical characteristic 430 is shown with low and high temperature reference points at-200 and 200 degrees celsius, other temperatures may be employed in alternative embodiments, such as higher or lower than-200 or 200 degrees celsius.
As can be seen in fig. 4, the first, second and third nominal reference points 432a, 434a, 436a are at 100 ohms, 500 ohms and 1000 ohms, respectively. Thus, the first, second and third electrical characteristic curves 432, 434, 436 correspond to the temperature sensor types 1,2 and 3 listed in fig. 3, respectively. As can be appreciated, the resistance of temperature sensor types 1,2, and 3 over a temperature range can be determined using equation (1) described hereinabove. By using equation (1), it is calculated that the temperature sensor type 1 has resistances of 23 ohms and 177 ohms at the first low and high temperature reference points 432b, 432 c. Similar calculations were performed showing that temperature sensor types 2 and 3 have resistances of 115 ohms and 885 ohms at the second low and high temperature reference points 434b, 434c, respectively, and 230 ohms and 1770 ohms at the third low and high temperature reference points 436b, 436c, respectively.
As can also be appreciated, the electrical characteristic curves 430 do not intersect. That is, electrical characteristic 430 does not have the same resistance at a given temperature. Thus, two or more of the temperature sensor types 1-3 may be distinguished by measuring the resistance at a given temperature and comparing the measured resistances to each other. The temperature sensor type may also be identified unambiguously by comparing the measured resistance to a temperature sensor profile (profile) that includes the resistance of a given temperature sensor type. Other methods of comparing the electrical characteristics of the temperature sensor to the temperature sensor type may also be employed.
Although three electrical characteristics 430 are shown, more or fewer electrical characteristics may be employed. For example, a meter electronics such as the meter electronics 20 shown previously may store two electrical characteristic curves 430. Alternatively, the meter electronics may store a plurality of electrical characteristic curves. Other forms of data may also be employed, such as formulas such as equation (1), discrete data points, and the like. Thus, more than three temperature sensors may be distinguished and/or explicitly identified as a particular temperature sensor type. Once the type of temperature sensor is determined and/or distinguished, the vibration sensor type may be determined, as shown in the method below.
The method.
Fig. 5 illustrates a method 500 for determining a vibration sensor type. In step 510, the method 500 determines an electrical characteristic of a temperature sensor configured to measure a temperature of the metering assembly. The metering assembly may be part of a vibration sensor. For example, referring to the embodiment shown in fig. 1 and 2, the first and second metrology assemblies 10a, 10b are part of the first and second vibration sensors 5a, 5b, respectively. In step 520, the method 500 compares the electrical characteristics of the temperature sensor to one or more temperature sensor types. The one or more temperature sensor types are associated with one or more vibration sensor types. Thus, the comparison may determine the vibration sensor type of the vibration sensor associated with the temperature sensor.
In operation, the meter electronics 20 described hereinabove may receive analog temperature signals from the first and second temperature sensors 190a, 190b of the first and second vibration sensors 5a, 5 b. The meter electronics 20 may digitize the analog temperature signal and, for example, determine a digital value. The digital value may be a scalar value representing an electrical characteristic of one of the temperature sensors 190a, 190 b. The digital value may be provided to the processor 140. Processor 140 may then compare the digital value to values associated with one or more temperature sensor types.
For example, the first temperature sensor 190a may be a temperature sensor type 1 and the second temperature sensor 190b may be a temperature sensor type 2. The first and second vibration sensors 5a, 5b may be employed in cryogenic applications, such as LNG that is distributed in total into the vehicle. Thus, both the first and second temperature sensors 190a, 190b may be at-200 ℃. The meter electronics 20 can measure the resistance of the first and second temperature sensors 190a, 190 b.
The meter electronics 20 may compare the measured resistances of the first and second temperature sensors 190a, 190b to a temperature sensor profile stored in the meter electronics 20. For example, the meter electronics 20 can unambiguously identify the first temperature sensor 190a as temperature sensor type 1 by comparing the measured resistance value to resistance values in one or more temperature sensor types. Similarly, meter electronics 20 can explicitly identify second temperature sensor 190b as temperature sensor type 2.
Additionally or alternatively, the meter electronics can compare the measured resistances of the first and second temperature sensors 190a, 190b to determine which has the greater resistance. For example, the meter electronics 20 may measure the resistances of the first and second temperature sensors 190a, 190b and determine that the second temperature sensor 190b has a greater resistance than the first temperature sensor 190a by comparing the magnitudes of the measured resistances. A greater resistance may indicate that the second temperature sensor 190b is temperature sensor type 2. Other methods of comparing electrical characteristics to one or more temperature sensor types may be employed.
One or more temperature sensor types may be associated with one or more vibration sensor types. For example, the temperature sensor type 1 shown in fig. 3 may be used only in a vibration sensor having a1 inch conduit, for example. The temperature sensor type 2 may be used only in vibration sensors with 1/4 inch tubing, for example. These or other correlations may be used as a look-up table, algorithm, etc. to program the meter electronics 20. Thus, the meter electronics 20 may, for example, look up 'temperature sensor type 1' (which is the temperature sensor type of the first temperature sensor 190 a) and determine that the first vibration sensor 5a is of the type having a1 inch conduit. Other correlations are possible in the described and alternative embodiments.
Because the vibration sensor type may be determined, the meter electronics 20 may be automatically configured to communicate with the first and second meter assemblies 10a, 10 b. The meter electronics 20 may be configured to communicate with the first and second meter assemblies 10a, 10b based on a correlation between one or more temperature sensor types and one or more vibration sensor types. For example, once the meter electronics 20 determines that the first and second vibration sensors 5a, 5b are 1 inch and 1/4 inch conduit flowmeters, respectively, the meter electronics 20 may be configured with appropriate flow calibration factors, phase detection algorithms, and the like. By being properly configured to communicate with the first and second metering assemblies 10a, 10b, the first and second vibration sensors 5a, 5b can accurately measure the properties of the material in the conduits 13a, 13a ', 13 b'.
The embodiments described above determine the vibration sensor type. As explained previously, the system 100 and method 900 may determine the temperature sensor type of the temperature sensor 190a, 190b employed in the vibration sensor 5a, 5b. By using the temperature sensor type of the temperature sensors 190a, 190b, the vibration sensor type of the vibration sensors 5a, 5b can be automatically determined without input from an operator. Thus, there is less chance of human error in configuring the meter electronics 20 and without the use of additional components. Furthermore, a single meter electronics 20 may be configured for more than one vibration sensor 5a, 5b.
For example, in low temperature applications (such as LNG fueling systems), the meter electronics 20 may be configured for both the first vibration sensor 5a in the LNG supply line and the second vibration sensor 5b in the LNG return line. The first vibration sensor 5a may be a1 inch vibration sensor type and the second vibration sensor 5b may be a 1/4 inch vibration sensor type. The meter electronics 20 can thus detect the vibration sensor type of the first and second vibration sensors 5a, 5b to accurately measure the flow rate of LNG in both the supply line and the return line.
The detailed description of the embodiments above is not an exhaustive description of all embodiments contemplated by the inventors to be within the scope of the description. Indeed, those skilled in the art will recognize that certain elements of the above-described embodiments may be variously combined or eliminated to create further embodiments, and such further embodiments fall within the scope and teachings of the present description. It will also be apparent to those of ordinary skill in the art that the above-described embodiments may be combined in whole or in part to create additional embodiments within the scope and teachings of the present description.
Thus, although specific embodiments are described herein for illustrative purposes, various equivalent modifications are possible within the scope of the description, as those skilled in the relevant art will recognize. The teachings provided herein may be applied to other systems and methods of determining vibration sensor types and not just to the embodiments described above and shown in the drawings. Accordingly, the scope of the embodiments described above should be determined from the following claims.
Claims (8)
1. A system (100) for determining a vibration sensor type, the system (100) comprising:
a first temperature sensor (190 a) configured to measure a temperature of the first metering assembly (10 a);
a second temperature sensor (190 b) configured to measure a temperature of the second metering assembly (10 b); and
Meter electronics (20) communicatively coupled with the first temperature sensor (190 a) and the second temperature sensor (190 b), the meter electronics (20) configured to:
determining an electrical characteristic of the first temperature sensor (190 a) and an electrical characteristic of the second temperature sensor (190 b); and
Comparing the electrical characteristics of the first temperature sensor (190 a) and the electrical characteristics of the second temperature sensor (190 b) to electrical characteristics of one or more temperature sensor types, wherein the one or more temperature sensor types are associated with one or more vibration sensor types;
wherein the first temperature sensor and the second temperature sensor have different temperatures, and the electrical characteristic is a temperature-to-electrical property; and
Wherein the first temperature sensor is used to measure pumped material and the second temperature sensor is used to measure returned material.
2. The system (100) of claim 1, wherein the electrical characteristic is a slope of a temperature-to-electrical property relationship.
3. The system (100) of claim 1, wherein the electrical characteristic is a region under a temperature-to-electrical property relationship.
4. A system (100) according to any of the preceding claims 1 to 3, wherein the meter electronics (20) is communicatively coupled with the first meter assembly (10 a) and the second meter assembly (10 b) and is further configured to communicate with the first meter assembly (10 a) and the second meter assembly (10 b) based on a correlation between one or more temperature sensor types and one or more vibration sensor types.
5. A method of determining a vibration sensor type, the method comprising:
communicatively coupling meter electronics to the first temperature sensor and the second temperature sensor;
Determining an electrical characteristic of a first temperature sensor configured to measure a temperature of the first metering assembly and an electrical characteristic of a second temperature sensor configured to measure a temperature of the second metering assembly; and
Comparing the electrical characteristics of the first temperature sensor and the second temperature sensor to electrical characteristics of one or more temperature sensor types, wherein the one or more temperature sensor types are associated with one or more vibration sensor types;
wherein the first temperature sensor and the second temperature sensor have different temperatures and the electrical characteristic is a temperature-to-electrical property relationship; and
Wherein the first temperature sensor is used to measure pumped material and the second temperature sensor is used to measure returned material.
6. The method of claim 5, wherein the electrical characteristic is a slope of a temperature-to-electrical property relationship.
7. The method of claim 5, wherein the electrical characteristic is a region under a temperature-to-electrical property relationship.
8. The method of any of the preceding claims 5 to 7, further comprising configuring the meter electronics in communication with the first and second meter assemblies to communicate with the first and second meter assemblies based on a correlation between one or more temperature sensor types and one or more vibration sensor types.
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| US6318186B1 (en) * | 1999-06-28 | 2001-11-20 | Micro Motion, Inc. | Type identification and parameter selection for drive control in a coriolis flowmeter |
| US6505131B1 (en) * | 1999-06-28 | 2003-01-07 | Micro Motion, Inc. | Multi-rate digital signal processor for signals from pick-offs on a vibrating conduit |
| US6505135B2 (en) * | 2001-03-13 | 2003-01-07 | Micro Motion, Inc. | Initialization algorithm for drive control in a coriolis flowmeter |
| DE102008050115A1 (en) * | 2008-10-06 | 2010-04-08 | Endress + Hauser Flowtec Ag | In-line measuring device |
| JP5560375B2 (en) * | 2010-08-02 | 2014-07-23 | マイクロ モーション インコーポレイテッド | Method and apparatus for determining the temperature of a vibration sensor component of a vibration meter |
| SG187971A1 (en) * | 2010-08-27 | 2013-04-30 | Micro Motion Inc | Sensor assembly validation |
| KR101569887B1 (en) * | 2010-11-16 | 2015-11-27 | 마이크로 모우션, 인코포레이티드 | Multiple temperature sensor system |
| BR112013021113B1 (en) * | 2011-02-23 | 2021-07-06 | Micro Motion, Inc. | vibrating flowmeter, methods of measuring temperature in it, and forming a vibrating flowmeter |
| RU2598160C1 (en) * | 2012-08-21 | 2016-09-20 | Майкро Моушн, Инк. | Coriolis flow meter and method with improved zero component of the meter |
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