CN203177907U - Ultrasonic flow sensor - Google Patents
Ultrasonic flow sensor Download PDFInfo
- Publication number
- CN203177907U CN203177907U CN 201320197301 CN201320197301U CN203177907U CN 203177907 U CN203177907 U CN 203177907U CN 201320197301 CN201320197301 CN 201320197301 CN 201320197301 U CN201320197301 U CN 201320197301U CN 203177907 U CN203177907 U CN 203177907U
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- Prior art keywords
- ultrasonic
- flow sensor
- ultrasonic flow
- reflection
- measuring
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- Expired - Lifetime
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- 238000002604 ultrasonography Methods 0.000 claims description 9
- 238000000034 method Methods 0.000 description 8
- 238000005516 engineering process Methods 0.000 description 5
- 239000012530 fluid Substances 0.000 description 5
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000005272 metallurgy Methods 0.000 description 1
- 238000009428 plumbing Methods 0.000 description 1
- 230000000644 propagated effect Effects 0.000 description 1
- 230000008054 signal transmission Effects 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
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Abstract
The utility model relates to an ultrasonic flow sensor. The ultrasonic flow sensor comprises a tube and four ultrasonic signal reflection devices, wherein the four reflection devices are arranged in the tube and form certain included angles respectively, ultrasonic signals sent from an ultrasonic transmitting terminal are reflected by the four reflective devices sequentially and enter an ultrasonic receiving terminal. According to the ultrasonic flow sensor, the number of reflection of measuring ultrasonic waves is increased, so that the measuring sectional area is enlarged, the measuring accuracy is improved, and measuring errors are reduced.
Description
Technical field
The utility model belongs to acoustics, field of sensing technologies, particularly utilizes 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.
The utility model content
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 utility model 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 ultrasound wave transmitting terminal 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.
The beneficial effects of the utility model are measured hyperacoustic order of reflection because increased, and have therefore increased the measurement sectional area, have improved measuring accuracy, have reduced measuring error.
Description of drawings
Fig. 1 secondary reflection formula pipeline section ultrasonic flow sensor
Fig. 2 front view of the present utility model
Fig. 3 left view of the present utility model
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 ultrasound wave transmitting terminal 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 ultrasound wave transmitting terminal 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 |
|---|---|---|---|
| CN 201320197301 CN203177907U (en) | 2013-04-18 | 2013-04-18 | Ultrasonic flow sensor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320197301 CN203177907U (en) | 2013-04-18 | 2013-04-18 | Ultrasonic flow sensor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203177907U true CN203177907U (en) | 2013-09-04 |
Family
ID=49074590
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320197301 Expired - Lifetime CN203177907U (en) | 2013-04-18 | 2013-04-18 | Ultrasonic flow sensor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203177907U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103217196A (en) * | 2013-04-18 | 2013-07-24 | 江苏迈拓智能仪表有限公司 | Ultrasonic flow sensor |
-
2013
- 2013-04-18 CN CN 201320197301 patent/CN203177907U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103217196A (en) * | 2013-04-18 | 2013-07-24 | 江苏迈拓智能仪表有限公司 | Ultrasonic flow sensor |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 210000 No. 3, Xiang Feng Road, Jiangning Binjiang Economic Development Zone, Nanjing, Jiangsu Patentee after: Maxtor instrument Limited by Share Ltd. Address before: 210000 No. 3, Xiang Feng Road, Jiangning Binjiang Economic Development Zone, Nanjing, Jiangsu Patentee before: JIANGSU MAITUO INTELLIGENT METER Co.,Ltd. |
|
| CP01 | Change in the name or title of a patent holder | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130904 |
|
| CX01 | Expiry of patent term |