CN103217196A - Ultrasonic flow sensor - Google Patents
Ultrasonic flow sensor Download PDFInfo
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- CN103217196A CN103217196A CN2013101356288A CN201310135628A CN103217196A CN 103217196 A CN103217196 A CN 103217196A CN 2013101356288 A CN2013101356288 A CN 2013101356288A CN 201310135628 A CN201310135628 A CN 201310135628A CN 103217196 A CN103217196 A CN 103217196A
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- ultrasonic
- flow sensor
- reflection
- ultrasonic flow
- reflection units
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Abstract
The invention relates to an ultrasonic flow sensor which comprises a tube body and ultrasonic signal reflection devices. Four reflection devices are mounted inside the tube body, each reflection device forms a certain included angle, and ultrasonic signals which are emitted from an ultrasonic transmitting terminal are reflected by the four reflection devices in sequence, and then enter into an ultrasonic receiving terminal at last. By means of the ultrasonic flow sensor, the times of reflection of ultrasonic are increased, therefore, measuring sectional area is increased, measurement accuracy is improved, and measuring error is reduced.
Description
Technical field
The invention belongs to acoustics, field of sensing technologies, particularly utilize ultrasonic detecting technology, specifically is a kind of ultrasonic flow sensor structure.
Background technology
Pipeline section type ultrasonic flow instrument is to be principle with " velocity contrast method ", measures the instrument of fluid flow in the pipeline section pipe.It has adopted advanced multiple-pulse technology, signal digitalized treatment technology and error correcting technique, makes flow instrument more can adapt to on-the-spot environment, measures more convenient, economical, accurate.Can be widely used in fields such as oil, chemical industry, metallurgy, electric power, plumbing.
The information of rate of flow of fluid on just carrying when ultrasound wave is propagated in the fluid that flows.Therefore just can detect flow rate of fluid by the ultrasound wave that receives, thereby be converted into flow.Mode according to detecting can be divided into dissimilar ultrasonic flow meters such as propagation speed differential method, Doppler method, wave beam deflection method, noise method and correlation method.
The flow sensor structure prior art of ultrasonic flow instrument is generally secondary reflection, what secondary reflection formula ultrasonic flow sensor was measured is pipeline section center flow velocity, and the relation between the mean flow rate changes with the uncertain of fluid state, has bigger measuring error in actual applications.
Summary of the invention
For overcoming the defective of above-mentioned ultrasonic flow sensor structure, a kind of scientific and reasonable flow sensor structure is provided, can effectively improve measuring accuracy.
Technical method of the present invention is:
A kind of ultrasonic flow sensor, comprise body and ultrasonic signal reflection unit, four reflection units are housed in the body, four reflection units respectively have certain included angle of one's own, ultrasonic signal sends successively from the ultrasonic emitting end and reflects at four reflection units, enters the ultrasound wave receiving end at last.
Preferred scheme is equipped with a measuring tube in the described body.
Preferred scheme, described four reflection units in body all are on the tube wall of measuring tube in the body.
Beneficial effect of the present invention is measured hyperacoustic order of reflection because increased, and has therefore increased the measurement sectional area, has improved measuring accuracy, has reduced measuring error.
Description of drawings
Fig. 1 secondary reflection formula pipeline section ultrasonic flow sensor
Fig. 2 front view of the present invention
Fig. 3 left view of the present invention
Among the figure: S is the ultrasound signal transmission path, 1, body; 2.1,2.2,2.3,2.4 be reflection unit.
Embodiment
A kind of ultrasonic flow sensor, comprise body 1 and ultrasonic signal reflection unit 2.1,2.2,2.3,2.4, four reflection units 2.1,2.2,2.3,2.4 are housed in the described body 1, four reflection units 2.1,2.2,2.3,2.4 respectively have certain included angle of one's own, ultrasonic signal sends successively from the ultrasonic emitting end and reflects at four reflection units, enters the ultrasound wave receiving end at last.
Described ultrasonic flow sensor is equipped with a measuring tube in the body 1.
Described ultrasonic flow sensor structure, four reflection units 2.1,2.2,2.3,2.4 in the body 1 all are on the tube wall of measuring tube in the body 1.
Claims (3)
1. ultrasonic flow sensor, comprise body and ultrasonic signal reflection unit, it is characterized in that being equipped with in the body four reflection units, four reflection units respectively have certain included angle of one's own, ultrasonic signal sends successively from the ultrasonic emitting end and reflects at four reflection units, enters the ultrasound wave receiving end at last.
2. ultrasonic flow sensor according to claim 1 is characterized in that being equipped with in the body measuring tube.
3. ultrasonic flow sensor according to claim 2 is characterized in that four reflection units in the body all are on the tube wall of measuring tube in the body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013101356288A CN103217196A (en) | 2013-04-18 | 2013-04-18 | Ultrasonic flow sensor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013101356288A CN103217196A (en) | 2013-04-18 | 2013-04-18 | Ultrasonic flow sensor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103217196A true CN103217196A (en) | 2013-07-24 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2013101356288A Pending CN103217196A (en) | 2013-04-18 | 2013-04-18 | Ultrasonic flow sensor |
Country Status (1)
| Country | Link |
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| CN (1) | CN103217196A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106908105A (en) * | 2015-12-23 | 2017-06-30 | 江苏迈拓智能仪表有限公司 | A kind of spiral ultrasonic flow sensor |
| CN109341794A (en) * | 2018-12-24 | 2019-02-15 | 南京光声超构材料研究院有限公司 | Ultrasonic flowmeter and the method for adjusting energy converter |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4103551A (en) * | 1977-01-31 | 1978-08-01 | Panametrics, Inc. | Ultrasonic measuring system for differing flow conditions |
| CN203177907U (en) * | 2013-04-18 | 2013-09-04 | 江苏迈拓智能仪表有限公司 | Ultrasonic flow sensor |
-
2013
- 2013-04-18 CN CN2013101356288A patent/CN103217196A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4103551A (en) * | 1977-01-31 | 1978-08-01 | Panametrics, Inc. | Ultrasonic measuring system for differing flow conditions |
| CN203177907U (en) * | 2013-04-18 | 2013-09-04 | 江苏迈拓智能仪表有限公司 | Ultrasonic flow sensor |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106908105A (en) * | 2015-12-23 | 2017-06-30 | 江苏迈拓智能仪表有限公司 | A kind of spiral ultrasonic flow sensor |
| CN109341794A (en) * | 2018-12-24 | 2019-02-15 | 南京光声超构材料研究院有限公司 | Ultrasonic flowmeter and the method for adjusting energy converter |
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| PB01 | Publication | ||
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| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20130724 |