CN201611295U - Gas pressure sensor - Google Patents
Gas pressure sensor Download PDFInfo
- Publication number
- CN201611295U CN201611295U CN2009202986518U CN200920298651U CN201611295U CN 201611295 U CN201611295 U CN 201611295U CN 2009202986518 U CN2009202986518 U CN 2009202986518U CN 200920298651 U CN200920298651 U CN 200920298651U CN 201611295 U CN201611295 U CN 201611295U
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- CN
- China
- Prior art keywords
- air bag
- magnet
- hall element
- gas pressure
- pressure 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 utility model provides a gas pressure sensor which is characterized by comprising a hall element, a magnet, an elastic element, an air bag, a shell and a base, wherein the air bag is installed in the shell, and the mouth thereof penetrates the wall of the base; the elastic element presses the air bag; the magnet is directly or indirectly connected with the air bag; the hall element is directly or indirectly installed in the wall of the shell; and the hall element and the magnet are arranged at an interval in the shell. The gas pressure sensor has the beneficial effect that the air bag and the elastic element are used for converting the gas pressure into displacement of the air bag; the displacement of the air bag leads to the displacement of the magnet or the hall element; and the air pressure is converted into voltage signals by relative displacement between the hall element and the magnet. The gas pressure sensor has the advantages of easy adjustment, wide range of power supply and power output, convenient processing and installation of components, low cost and the like.
Description
Technical field
The utility model belongs to the device of instrument and meter, and a kind of specifically gas pressure sensor makes variation of gas pressure, changes the device of electric quantity change into.
Background technology
Existing gas pressure sensor is a sticking lastblock metal strain plate on a metal material, the variation of metal material causes that the resistance of foil gauge changes when gas pressure change, its variation range is very little, the change in resistance scope is 0.01 ohm, the circuit of need high complexity could take out the variation of its resistance, be unfavorable for producing, cost of products is higher.In addition, do not have the instrument of the costliness of specialty to adjust during installation, install and use inconvenience, difficult in maintenance.
The utility model content
The purpose of this utility model provides a kind of gas pressure sensor, and it has service area and output area is big, and is easy to install, the advantage that cost is low.
The technical solution of the utility model is: it comprises Hall element, magnet, flexible member, air bag, housing and base; Air bag is placed in the housing, air bag mouth pass-out base wall; Flexible member is pressed on the air bag; Magnet directly or indirectly is connected with air bag; Hall element directly or indirectly is placed on the housing wall, and Hall element is alternate placement with magnet in housing.
According to gas pressure sensor described in the utility model, it is characterized in that: described air bag is the ripple air bag, and described flexible member is a spring; Flexible member one end is pressed on the magnet, and the spring other end directly or indirectly withstands housing wall.
According to gas pressure sensor described in the utility model, it is characterized in that: magnet is placed on plane on the ripple air bag, and Hall element is placed on the top of magnet, Hall element and the magnet distance of being separated by.
The beneficial effects of the utility model are with air bag and flexible member gaseous tension to be converted to the displacement of air bag, and the displacement of air bag drives magnet or Hall element displacement, and the relative displacement by Hall element and magnet is converted to voltage signal with air pressure.Have regulate easily, power and export that electric scope is big, device fabrication and easy for installation, plurality of advantages such as cost is low.
Description of drawings
Fig. 1 is the structural representation of the utility model embodiment.
Wherein, 1 power supply+, 2 output signal voltages, 3 power supplys, one, 4 spring, 5 Hall elements, 6 magnet, 7 ripple air bags, 8 shells, 9 air intake openings, 10 bases, 11 adjusting screw.
Embodiment
As shown in Figure 1: a kind of gas pressure sensor, it is by 4 springs, 5 Hall elements, 6 magnet, 7 ripple air bags, 8 shells, base 10 constitutes.On copper base 10, the method that seals with the weldering knot links to each other ripple air bag 7 with the copper pedestal 10 of shell 8.A magnet 6 is fixed on plane on the ripple air bag 7, closely links to each other with pressure spring 4 bottoms above the magnet 6, and pressure spring 4 tops closely link to each other with top spring pressure adjusting screw 11.But pressure regulating screw 11 is up-down adjustment on copper shell 8.Hall element (the Hall linear set is grown up to be a useful person) 5 devices are in the middle of spring 4, and the connecting line of Hall element 5 is drawn in the middle of spring pressure adjusting screw 11, and with fixing card Hall element 5 fixed, and shell 8 links to each other with base 10 usefulness screw threads.The power supply of adjustment and power supply connection Hall element (+SV) adjust the spring pressure adjusting screw, the bottom of spring is closely linked to each other with the last plane of ripple air bag.During course of work detected gas pressure, this gas is passed through air intake opening, enter in the ripple air bag, the pressure of this gas, last plane by the ripple air bag, transfer the pressure on the spring, behind the spring stress, the flexible of spring changes, and change in displacement has just taken place the magnet that spring is fixed on plane on the ripple air bag, also be that distance between magnet and the Hall element is subjected to displacement variation, the magnetism intensity that Hall element is subjected to also changes thereupon, and promptly the output voltage of Hall element also changes thereupon, thereby when having reached gas pressure change, the purpose that its output voltage changes thereupon becomes a gas pressure sensor.The gaseous tension of present embodiment is in the 0-25kg working range, and the output voltage of the change in displacement 0-2mm Hall element of magnet is 2.4V-3.4V.
Claims (3)
1. gas pressure sensor, it is characterized in that: it comprises Hall element, magnet, flexible member, air bag, housing and base; Air bag is placed in the housing, air bag mouth pass-out base wall; Flexible member is pressed on the air bag; Magnet directly or indirectly is connected with air bag; Hall element directly or indirectly is placed on the housing wall, and Hall element is alternate placement with magnet in housing.
2. gas pressure sensor as claimed in claim 1 is characterized in that: described air bag is the ripple air bag, and described flexible member is a spring; Flexible member one end is pressed on the magnet, and the spring other end directly or indirectly withstands housing wall.
3. gas pressure sensor as claimed in claim 2 is characterized in that: magnet is placed on plane on the ripple air bag, and Hall element is placed on the top of magnet, Hall element and the magnet distance of being separated by.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202986518U CN201611295U (en) | 2009-12-30 | 2009-12-30 | Gas pressure sensor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202986518U CN201611295U (en) | 2009-12-30 | 2009-12-30 | Gas pressure sensor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201611295U true CN201611295U (en) | 2010-10-20 |
Family
ID=42961929
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009202986518U Expired - Fee Related CN201611295U (en) | 2009-12-30 | 2009-12-30 | Gas pressure sensor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201611295U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103017971A (en) * | 2012-11-28 | 2013-04-03 | 安徽埃克森科技集团有限公司 | Gas pressure sensor |
| CN106197626A (en) * | 2016-09-12 | 2016-12-07 | 韶关学院 | A kind of beam type pressure transducer based on Hall effect |
| CN110044536A (en) * | 2019-05-17 | 2019-07-23 | 大唐半导体科技有限公司 | A kind of gas-detecting device |
| CN111664984A (en) * | 2020-06-21 | 2020-09-15 | 盐城师范学院 | High-altitude atmospheric pressure sensor |
-
2009
- 2009-12-30 CN CN2009202986518U patent/CN201611295U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103017971A (en) * | 2012-11-28 | 2013-04-03 | 安徽埃克森科技集团有限公司 | Gas pressure sensor |
| CN106197626A (en) * | 2016-09-12 | 2016-12-07 | 韶关学院 | A kind of beam type pressure transducer based on Hall effect |
| CN106197626B (en) * | 2016-09-12 | 2019-01-04 | 韶关学院 | A kind of beam type pressure sensor based on Hall effect |
| CN110044536A (en) * | 2019-05-17 | 2019-07-23 | 大唐半导体科技有限公司 | A kind of gas-detecting device |
| CN111664984A (en) * | 2020-06-21 | 2020-09-15 | 盐城师范学院 | High-altitude atmospheric pressure sensor |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20101020 Termination date: 20101230 |