CN204085774U - The Underwater Pressure sensor of the variation in water pressure measurement of a kind of pair of diaphragm structure - Google Patents
The Underwater Pressure sensor of the variation in water pressure measurement of a kind of pair of diaphragm structure Download PDFInfo
- Publication number
- CN204085774U CN204085774U CN201420571971.7U CN201420571971U CN204085774U CN 204085774 U CN204085774 U CN 204085774U CN 201420571971 U CN201420571971 U CN 201420571971U CN 204085774 U CN204085774 U CN 204085774U
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- CN
- China
- Prior art keywords
- diaphragm
- pressure
- variation
- sensitive diaphragm
- sensor
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Abstract
The Underwater Pressure sensor that the variation in water pressure that the utility model discloses a kind of pair of diaphragm structure is measured, belong to sensor technical field, comprise housing and enclosure interior is divided into the dividing plate of fluid chamber, top and lower chamber, the top in fluid chamber, top is open end, open end is provided with sensitive diaphragm, sensitive diaphragm is provided with the voltage dependent resistor (VDR) of reaction diaphragm stress, sensitive diaphragm is outside equipped with fender, and fender is distributed with through hole; Lower chamber be provided with lower chamber is divided into compression chamber and intake antrum and with inner walls be tightly connected by pressuring film plate, be provided with pressure transducer in compression chamber, the housing wall of intake antrum offer inlet opening.The pressure of water is delivered to sensor internal by two diaphragms, and measure slight pressure change by sensitive diaphragm, internal pressure sensor measures large pressure, can bear and measure large pressure, can measure small variation in water pressure again.
Description
Technical field
The utility model relates to sensor technical field, the Underwater Pressure sensor that the variation in water pressure in particular to a kind of pair of diaphragm structure is measured.
Background technology
Underwater Pressure sensor is widely used in the hydrospace detections such as tide detection, underwater robot job position mensuration; to the detection of the Underwater Pressures such as ocean; especially the detection of large pressure under deep-marine-environment; sensor must bear and measure the large hydraulic pressure at deep-sea; the change of hydraulic pressure can be measured again; this is that existing subsea pressure detects the difficult problem faced, and existing sensor is larger for the measuring error of the change of hydraulic pressure.
Utility model content
The purpose of this utility model is to provide one to bear and measures large pressure, again can the Underwater Pressure sensor of the variation in water pressure measurement of two diaphragm structures that requires of Measurement accuracy slight pressure change, to solve the problem.
For realizing the utility model object, the technical scheme adopted is: the Underwater Pressure sensor of the variation in water pressure measurement of a kind of pair of diaphragm structure, comprise housing and enclosure interior is divided into the dividing plate of fluid chamber, top and lower chamber, the top in fluid chamber, top is open end, open end is provided with sensitive diaphragm, sensitive diaphragm is provided with the voltage dependent resistor (VDR) of reaction diaphragm stress, sensitive diaphragm is outside equipped with fender, and fender is distributed with through hole; Lower chamber be provided with lower chamber is divided into compression chamber and intake antrum and with inner walls be tightly connected by pressuring film plate, be provided with pressure transducer in compression chamber, the housing wall of intake antrum offer inlet opening.
Further, described pressure transducer is positioned on dividing plate.
Further, described sensitive diaphragm is circular film.
Further, sensitive diaphragm is arranged on sensor housing by fender.
The beneficial effects of the utility model are; the pressure of water is delivered to sensor internal by two diaphragms; slight pressure change is measured by sensitive diaphragm; internal pressure sensor measures large pressure; achieve to bear and measure large pressure, can measure again the requirement of slight pressure change, there is the protective device by water two diaphragm outsides of sensor; so neither affect water pressure to measure, diaphragm can be protected again injury-free.
Accompanying drawing explanation
Fig. 1 is the cut-open view of the Underwater Pressure sensor that the variation in water pressure of two diaphragm structures that the utility model provides is measured.
Embodiment
Also by reference to the accompanying drawings the utility model is described in further detail below by specific embodiment.
The Underwater Pressure sensor that the variation in water pressure that Fig. 1 shows two diaphragm structures that the utility model provides is measured, comprise housing 1 and be the dividing plate 6 of fluid chamber, top 13 and lower chamber by housing 1 interior separation, fluid chamber, top 13 is full of fluid, the top in fluid chamber, top 13 is open end, open end is provided with sensitive diaphragm 2, and sensitive diaphragm 2 is circular film, sensitive diaphragm 2 is provided with the voltage dependent resistor (VDR) of reaction diaphragm stress, sensitive diaphragm 2 is outside equipped with fender 4, and fender 4 is distributed with through hole; Lower chamber be provided with lower chamber is divided into compression chamber 12 is connected with intake antrum 11 and with housing 1 inner wall sealing by pressuring film plate 3, pressure transducer 5 is provided with in compression chamber 12, pressure transducer 5 is arranged on dividing plate 6, the housing wall of intake antrum 11 offers inlet opening 14.
Sensitive diaphragm 2 is arranged on sensor housing 1 by fender 4, and fender 4 can protect sensitive diaphragm 2, and effect of water pressure can be made again in sensitive diaphragm 2.
The foregoing is only preferred embodiment of the present utility model, be not limited to the utility model, for a person skilled in the art, the utility model can have various modifications and variations.All within spirit of the present utility model and principle, any amendment done, equivalent replacement, improvement etc., all should be included within protection domain of the present utility model.
Claims (4)
1. the Underwater Pressure sensor of the variation in water pressure measurement of a two diaphragm structure, it is characterized in that, comprise housing and enclosure interior is divided into the dividing plate of fluid chamber, top and lower chamber, the top in fluid chamber, top is open end, open end is provided with sensitive diaphragm, sensitive diaphragm is provided with the voltage dependent resistor (VDR) of reaction diaphragm stress, sensitive diaphragm is outside equipped with fender, and fender is distributed with through hole; Lower chamber be provided with lower chamber is divided into compression chamber and intake antrum and with inner walls be tightly connected by pressuring film plate, be provided with pressure transducer in compression chamber, the housing wall of intake antrum offer inlet opening.
2. the Underwater Pressure sensor of the variation in water pressure measurement of according to claim 1 pair of diaphragm structure, it is characterized in that, described pressure transducer is positioned on dividing plate.
3. the Underwater Pressure sensor of the variation in water pressure measurement of according to claim 1 pair of diaphragm structure, it is characterized in that, described sensitive diaphragm is circular film.
4. the Underwater Pressure sensor of the variation in water pressure measurement of according to claim 1 pair of diaphragm structure, it is characterized in that, sensitive diaphragm is arranged on sensor housing by fender.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420571971.7U CN204085774U (en) | 2014-09-30 | 2014-09-30 | The Underwater Pressure sensor of the variation in water pressure measurement of a kind of pair of diaphragm structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420571971.7U CN204085774U (en) | 2014-09-30 | 2014-09-30 | The Underwater Pressure sensor of the variation in water pressure measurement of a kind of pair of diaphragm structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204085774U true CN204085774U (en) | 2015-01-07 |
Family
ID=52178476
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420571971.7U Expired - Fee Related CN204085774U (en) | 2014-09-30 | 2014-09-30 | The Underwater Pressure sensor of the variation in water pressure measurement of a kind of pair of diaphragm structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204085774U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104215385A (en) * | 2014-09-30 | 2014-12-17 | 成都卓微科技有限公司 | Dual-diaphragm underwater pressure sensor for water pressure change measurement |
| CN110926668A (en) * | 2019-12-24 | 2020-03-27 | 中国科学院微电子研究所 | Pressure sensor for improving measurement accuracy by utilizing total reflection principle and application thereof |
-
2014
- 2014-09-30 CN CN201420571971.7U patent/CN204085774U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104215385A (en) * | 2014-09-30 | 2014-12-17 | 成都卓微科技有限公司 | Dual-diaphragm underwater pressure sensor for water pressure change measurement |
| CN110926668A (en) * | 2019-12-24 | 2020-03-27 | 中国科学院微电子研究所 | Pressure sensor for improving measurement accuracy by utilizing total reflection principle and application thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150107 Termination date: 20150930 |
|
| EXPY | Termination of patent right or utility model |