CN204085776U - A kind of two diaphragm type Underwater Pressure sensors with position limiting structure - Google Patents
A kind of two diaphragm type Underwater Pressure sensors with position limiting structure Download PDFInfo
- Publication number
- CN204085776U CN204085776U CN201420572106.4U CN201420572106U CN204085776U CN 204085776 U CN204085776 U CN 204085776U CN 201420572106 U CN201420572106 U CN 201420572106U CN 204085776 U CN204085776 U CN 204085776U
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- diaphragm
- plate
- chamber
- pressure
- limiting structure
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Abstract
The utility model discloses a kind of two diaphragm type Underwater Pressure sensors with position limiting structure, belong to sensor technical field, comprise housing and enclosure interior is divided into the dividing plate of fluid chamber, top and lower chamber, 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, the pressure transducer be arranged on dividing plate is provided with in compression chamber, and dividing plate is installed the accumulator that promising pressure transducer powers, in compression chamber, the side by pressuring film plate is provided with limiting plate, limiting plate is placed with through hole, the housing wall of intake antrum offers inlet opening.The pressure of water is delivered to sensor internal by two diaphragms, can bears and measure large pressure, small variation in water pressure can be measured again.
Description
Technical field
The utility model relates to sensor technical field, in particular to a kind of two diaphragm type Underwater Pressure sensors with position limiting structure.
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 two diaphragm type Underwater Pressure sensors of band position limiting structure of requiring of Measurement accuracy slight pressure change, to solve the problem.
For realizing the utility model object, the technical scheme adopted is: a kind of two diaphragm type Underwater Pressure sensors with position limiting 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, the pressure transducer be arranged on dividing plate is provided with in compression chamber, and dividing plate is installed the accumulator that promising pressure transducer powers, in compression chamber, the side by pressuring film plate is provided with limiting plate, limiting plate is placed with through hole, the housing wall of intake antrum offers inlet opening.
Further, the through hole on described limiting plate is evenly arranged.
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, the requirement of slight pressure change can be measured again, 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, and the motion deformation by pressuring film plate limits within the specific limits by limiting plate, better prevent and damaged under large pressure reduction by pressuring film plate.
Accompanying drawing explanation
Fig. 1 is the cut-open view of two diaphragm type Underwater Pressure sensors of the band position limiting structure that the utility model provides.
Embodiment
Also by reference to the accompanying drawings the utility model is described in further detail below by specific embodiment.
Fig. 1 shows two diaphragm type Underwater Pressure sensors of the band position limiting structure that the utility model provides, 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, the pressure transducer 5 be arranged on dividing plate 6 is provided with in compression chamber 12, and dividing plate 6 is installed the accumulator 7 of promising pressure transducer 5 power supply, in compression chamber 12, the side by pressuring film plate 3 is provided with limiting plate 8, limiting plate 8 is evenly placed with through hole, 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 two diaphragm type Underwater Pressure sensors with position limiting 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, the pressure transducer be arranged on dividing plate is provided with in compression chamber, and dividing plate is installed the accumulator that promising pressure transducer powers, in compression chamber, the side by pressuring film plate is provided with limiting plate, limiting plate is placed with through hole, the housing wall of intake antrum offers inlet opening.
2. two diaphragm type Underwater Pressure sensors of band position limiting structure according to claim 1, it is characterized in that, the through hole on described limiting plate is evenly arranged.
3. two diaphragm type Underwater Pressure sensors of band position limiting structure according to claim 1, it is characterized in that, described sensitive diaphragm is circular film.
4. two diaphragm type Underwater Pressure sensors of band position limiting structure according to claim 1, it is characterized in that, sensitive diaphragm is arranged on sensor housing by fender.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420572106.4U CN204085776U (en) | 2014-09-30 | 2014-09-30 | A kind of two diaphragm type Underwater Pressure sensors with position limiting structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420572106.4U CN204085776U (en) | 2014-09-30 | 2014-09-30 | A kind of two diaphragm type Underwater Pressure sensors with position limiting structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204085776U true CN204085776U (en) | 2015-01-07 |
Family
ID=52178478
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420572106.4U Expired - Fee Related CN204085776U (en) | 2014-09-30 | 2014-09-30 | A kind of two diaphragm type Underwater Pressure sensors with position limiting structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204085776U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104266790A (en) * | 2014-09-30 | 2015-01-07 | 成都卓微科技有限公司 | Double-diaphragm type underwater pressure sensor with limiting structure |
-
2014
- 2014-09-30 CN CN201420572106.4U patent/CN204085776U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104266790A (en) * | 2014-09-30 | 2015-01-07 | 成都卓微科技有限公司 | Double-diaphragm type underwater pressure sensor with limiting structure |
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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 |