CN105987743A - Radar liquidometer calibration device - Google Patents
Radar liquidometer calibration device Download PDFInfo
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- CN105987743A CN105987743A CN201510070942.1A CN201510070942A CN105987743A CN 105987743 A CN105987743 A CN 105987743A CN 201510070942 A CN201510070942 A CN 201510070942A CN 105987743 A CN105987743 A CN 105987743A
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- radar
- level gauge
- wave
- caliberating device
- plate
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Abstract
The invention relates to a radar liquidometer calibration device. The radar liquidometer calibration device is simple in structure, is easy to operate, is low in demand for the levelness of guide rails, and is high in resolution. The radar liquidometer calibration device includes a horizontal guide rail; the horizontal guide rail is provided with a sliding base; a metal radar wave reflection plate is hanged under the base and is used for reflecting radar wave emitted by a radar liquidometer; the base is provided with a displacement sensing disc which can synchronously rotate while the base moves on the horizontal guide rail; the displacement sensing disc is coaxially connected to a raster sensing disc; 360 gaps are evenly formed in the perimeter of the raster sensing disc; and the base is provided with a displacement pulse conversion device which is corresponding to the gaps of the e raster sensing disc.
Description
Technical field
The present invention relates to a kind of liquid level gauge field, be specifically related to a kind of radar level gauge caliberating device, be used for examining
Survey calibrating or the caliberating device of the higher radar level gauge of liquid level range.
Background technology
At present, logical to the calibrating of radar thing position or level sensing instrument or demarcation in automatic measurement instrument field
Often use the metalloradar wave reflection plate that a simulation is set on two opposing parallel tracks, at track
The other end fixedly mounts radar level gauge that is accredited or that demarcate, by the position of mobile metalloradar wave reflection plate
Put and examine and determine or demarcate radar level gauge.The measurement being measured as distance of conversion liquid level, it is achieved thereby that radar
The calibrating of liquid level gauge or demarcation.The distance of standard or displacement are the readings of the displacement by magnetic grid or laser range finder
Number obtains.The feature of this calibrating or caliberating device is that the laying required precision to track is higher causes cost
Higher, parallel, the perpendicularity of track is relatively big on testing result impact, causes after reflection of radar wave not when serious
Can be received.
Content of the invention
The technical problem to be solved in the present invention is to provide a kind of simple in construction, easy and simple to handle, to guide rail levelness
Require low, the high radar level gauge caliberating device of detection resolution.
For reaching above-mentioned purpose, a kind of radar level gauge caliberating device of the present invention, described caliberating device includes a water
Level gauge, described horizontal guide rail is provided with a base that can slide, and be hung below described base a metal thunder
Reaching wave reflection plate, for reflecting the radar wave that radar level gauge is launched, described base is provided with a displacement sensing
Dish so that described base when moving on described horizontal guide rail described displacement sensing dish can synchronous axial system, institute
State displacement sensing dish and be coaxially connected with grating sensing dish, described grating sensing 360 breach of dish girth equal portions,
It is additionally provided with a dfisplacement pulse conversion equipment, the corresponding described grating of described dfisplacement pulse conversion equipment on described base
The indentation, there of sensing dish.
Wherein said metalloradar wave reflection plate side is provided with the thunderstorm activity plate of central aperture, is used for absorbing
The interference radar wave that described metalloradar wave reflection plate is reflected back.
Wherein said thunderstorm activity plate is two, and the perforate of two described thunderstorm activity plates is corresponding.
Wherein said metalloradar wave reflection plate is curved metal reflection of radar wave plate.
Wherein said curved metal reflection of radar wave plate radius of the radian is 30m.
The corresponding side of wherein said curved metal reflection of radar wave plate arcwall face is provided with the radar wave of central aperture
Baffle, for absorbing the interference radar wave that described metalloradar wave reflection plate is reflected back.
Wherein said thunderstorm activity plate is two, and the perforate of two described thunderstorm activity plates is corresponding.
The radius of wherein said grating sensing dish is more than the radius of described displacement sensing dish.
Wherein said dfisplacement pulse conversion equipment side is provided with infraluminescence diode, and opposite side is provided with infrared connecing
Receive diode.
Radar level gauge caliberating device difference from prior art of the present invention is that the present invention achieves following skill
Art effect:
1st, the guide rail arranging in horizontal direction of the present invention is a single horizontal rail, the water to horizontal guide rail
Pingdu requires relatively low, and the levelness of guide rail only produces impact to the height of reflection of radar wave plate, to radar wave
Reflection efficiency impact less；
2nd, the present invention by arrange curved metal reflection of radar wave plate can reduce reflection vertical with radar level gauge
The requirement of degree, between radar level gauge and reflection of radar wave plate, equally distributed radar wave absorbing plate can reduce instead
The interference of ejected wave, improves measurement distance；
3rd, mechanical displacement pulses switch device of the present invention is by a mechanical displacement amplifier and a position
Moving pulses switch device composition, displacement detecting precision is higher, by changing the amplification of mechanical displacement amplifier
Coefficient can improve the resolution ratio of displacement detecting.
The invention will be further described below in conjunction with the accompanying drawings.
Brief description
Fig. 1 is the structural representation of radar level gauge determinator of the present invention；
Fig. 2 is radar level gauge determinator superstructure side view of the present invention.
Description of reference numerals: the 1st, radar level gauge；2nd, radar wave absorbing plate；3rd, arc reflection of radar wave plate；
4th, grating sensing dish；5th, displacement sensing dish；6th, base；7th, dfisplacement pulse conversion equipment；8th, grating
Sensing dish radius；9th, displacement sensing dish radius；10th, infraluminescence diode；11st, infrared receiver diode.
Detailed description of the invention
Below in conjunction with drawings and Examples, the technical characteristic above-mentioned He other to the present invention and advantage are made more detailed
Thin explanation.
As illustrated in fig. 1 and 2, a kind of radar level gauge caliberating device of the present invention, described caliberating device includes one
Horizontal guide rail, described horizontal guide rail is provided with a base 6 that can slide, and be hung below base 6 radian half
Footpath is the curved metal reflection of radar wave plate 3 of 30m, for reflecting the radar wave that radar level gauge 1 is launched, arc
Shape metalloradar wave reflection plate 3 arcwall face side is provided with the thunderstorm activity of the central aperture of two parallel arranged
Plate 2, for absorbing the interference radar wave that curved metal reflection of radar wave plate 3 is reflected back, base 6 is provided with one
Displacement sensing dish 5 so that when base 6 slides on described horizontal guide rail displacement sensing dish 5 can synchronous axial system,
Displacement sensing dish 5 is coaxially connected with the grating sensing dish 4 more than displacement sensing dish 5 for the Radius, grating sensing dish
4 girth equal portions 360 breach, base 6 is additionally provided with a dfisplacement pulse conversion equipment 7, and dfisplacement pulse is changed
The infraluminescence diode 10 of device 7 both sides and infrared receiver diode 11 corresponding grating sensing dish 4 respectively
Breach positive and negative at.
During use, (usual 3～5 degree, refer to transmitting radar antenna to radar level gauge 1 at a certain angle
Horn mouth aperture, i.e. launches angle of flare, is fixed angles for this angle of certain product, the less transmitting of angle
Radar wave directive property is better, but the sensitivity accepting is impacted, say, that reflect slightly partially a little just anti-
Penetrate the transmitting antenna not returned) horizontal emission radar wave, the radar wave absorbing plate 2 passing through central aperture reaches arc
Shape reflection of radar wave plate 3 is reflected and returns to radar level gauge 1 and accept, due to the effect of radar wave absorbing plate 2,
The interference radar wave that space reflection returns is absorbed, and improves the antijamming capability of radar level gauge.Lead in level
On rail mobile base 6 arc reflection of radar wave plate 3 simultaneously move change between itself and radar level gauge 1 away from
Change from, distance is equal to the change of arc reflection of radar wave plate 3 displacement, liquid level variable be measured as distance
Measurement.Arc reflection of radar wave plate 3 on horizontal guide rail on the effect being moved through frictional force, drive position
Moving sensing dish 5 to rotate, the rotation of displacement sensing dish 5 drives grating disc 4 synchronous axial system, and straight-line displacement is equal to
The perimeter change amount i.e. change of angle of displacement sensing dish 5.The anglec of rotation of displacement sensing dish 5 passes with grating
Sense dish 4 coaxial synchronous, grating sensing dish 4 girth etc. divides 360 rectangular indentation, when breach passes through displacement arteries and veins
Red switch changing device 7, then export a pulse at pulses switch device.One pulse correspondence displacement sensing dish 5 exists
Horizontal rail bit shift amount is the resolution ratio of this dfisplacement pulse conversion equipment.Grating sensing dish radius 8 and displacement
The ratio of sensing dish radius 9 is the multiplication factor of mechanical displacement amplifier.
Embodiment 1:
In the present embodiment, the width of rectangle teeth groove is 2.5 millimeters, R8=286.6 millimeter, R9=28.66 millimeter,
That is: K=10.The whole resolution of displacement transducer is 0.5 millimeter.It is fully available for calibrating or scale liquid position
The liquid level gauge that resolution ratio is ± 2.5 millimeters.
Embodiment described above is only to be described the preferred embodiment of the present invention, not to this
Bright scope is defined, on the premise of designing spirit without departing from the present invention, and those of ordinary skill in the art
The various deformation making technical scheme and improvement, all should fall into claims of the present invention and determine
Protection domain in.
Claims (9)
1. a radar level gauge caliberating device, it is characterised in that: described caliberating device includes a horizontal guide rail,
Described horizontal guide rail is provided with a base that can slide, and be hung below described base a metalloradar wave reflection
Plate, for reflecting the radar wave that radar level gauge is launched, described base is provided with a displacement sensing dish so that
Described base when moving on described horizontal guide rail described displacement sensing dish can synchronous axial system, described displacement pass
Sense dish is coaxially connected with grating sensing dish, described grating sensing 360 breach of dish girth equal portions, described base
On be additionally provided with a dfisplacement pulse conversion equipment, the corresponding described grating sensing dish of described dfisplacement pulse conversion equipment
Indentation, there.
2. radar level gauge caliberating device according to claim 1, it is characterised in that: described metal thunder
Reach wave reflection plate side and be provided with the thunderstorm activity plate of central aperture, be used for absorbing described metalloradar wave reflection
The interference radar wave that plate is reflected back.
3. radar level gauge caliberating device according to claim 1, it is characterised in that: described radar wave
Baffle is two, and the perforate of two described thunderstorm activity plates is corresponding.
4. radar level gauge caliberating device according to claim 1, it is characterised in that: described metal thunder
Reaching wave reflection plate is curved metal reflection of radar wave plate.
5. radar level gauge caliberating device according to claim 5, it is characterised in that: described arc gold
Belonging to reflection of radar wave plate radius of the radian is 30m.
6. radar level gauge caliberating device according to claim 5, it is characterised in that: described arc gold
Belong to the corresponding side of reflection of radar wave plate arcwall face and be provided with the thunderstorm activity plate of central aperture, be used for absorbing institute
State the interference radar wave that metalloradar wave reflection plate is reflected back.
7. radar level gauge caliberating device according to claim 6, it is characterised in that: described radar wave
Baffle is two, and the perforate of two described thunderstorm activity plates is corresponding.
8. radar level gauge caliberating device according to claim 1, it is characterised in that: described grating passes
The radius of sense dish is more than the radius of described displacement sensing dish.
9. radar level gauge caliberating device according to claim 1, it is characterised in that: described displacement arteries and veins
Red switch changing device side is provided with infraluminescence diode, and opposite side is provided with infrared receiver diode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510070942.1A CN105987743A (en) | 2015-02-02 | 2015-02-02 | Radar liquidometer calibration device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510070942.1A CN105987743A (en) | 2015-02-02 | 2015-02-02 | Radar liquidometer calibration device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105987743A true CN105987743A (en) | 2016-10-05 |
Family
ID=57041746
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510070942.1A Pending CN105987743A (en) | 2015-02-02 | 2015-02-02 | Radar liquidometer calibration device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105987743A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108225496A (en) * | 2016-12-15 | 2018-06-29 | 重庆川仪自动化股份有限公司 | Radar levelmeter echo-signal automatic testing equipment, method and system |
| RU2687896C1 (en) * | 2018-08-02 | 2019-05-16 | Сергей Александрович Терехин | Device for absorption of secondary radiation in test bench of level gauges calibration |
| CN110864774A (en) * | 2019-12-25 | 2020-03-06 | 三门核电有限公司 | Automatic calibration device for ultrasonic level meter and using method thereof |
| CN113624304A (en) * | 2021-08-02 | 2021-11-09 | 北京锐达仪表有限公司 | Ultra-high precision radar level meter calibration device and method |
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| US20090079618A1 (en) * | 2007-08-10 | 2009-03-26 | Shaun Philip Harwood | Time-of-flight radar calibration system |
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| CN104614052A (en) * | 2015-01-20 | 2015-05-13 | 上海自动化仪表股份有限公司 | Reflecting level meter verification operation table |
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2015
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| CN2521583Y (en) * | 2001-12-05 | 2002-11-20 | 台湾艾华电子工业股份有限公司 | Optical coding device |
| US20090079618A1 (en) * | 2007-08-10 | 2009-03-26 | Shaun Philip Harwood | Time-of-flight radar calibration system |
| CN101408409A (en) * | 2008-11-07 | 2009-04-15 | 南通大学 | High precision digital type linear displacement transducer |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108225496A (en) * | 2016-12-15 | 2018-06-29 | 重庆川仪自动化股份有限公司 | Radar levelmeter echo-signal automatic testing equipment, method and system |
| CN108225496B (en) * | 2016-12-15 | 2020-02-21 | 重庆川仪自动化股份有限公司 | Radar level meter echo signal automatic testing device, method and system |
| RU2687896C1 (en) * | 2018-08-02 | 2019-05-16 | Сергей Александрович Терехин | Device for absorption of secondary radiation in test bench of level gauges calibration |
| CN110864774A (en) * | 2019-12-25 | 2020-03-06 | 三门核电有限公司 | Automatic calibration device for ultrasonic level meter and using method thereof |
| CN110864774B (en) * | 2019-12-25 | 2022-01-28 | 三门核电有限公司 | Automatic calibration device for ultrasonic level meter and using method thereof |
| CN113624304A (en) * | 2021-08-02 | 2021-11-09 | 北京锐达仪表有限公司 | Ultra-high precision radar level meter calibration device and method |
| CN113624304B (en) * | 2021-08-02 | 2023-09-19 | 北京锐达仪表有限公司 | Ultra-high precision radar level gauge calibration device and method |
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