CN208432360U - A kind of micro-pressure sensor means for correcting - Google Patents
A kind of micro-pressure sensor means for correcting Download PDFInfo
- Publication number
- CN208432360U CN208432360U CN201820919033.XU CN201820919033U CN208432360U CN 208432360 U CN208432360 U CN 208432360U CN 201820919033 U CN201820919033 U CN 201820919033U CN 208432360 U CN208432360 U CN 208432360U
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- CN
- China
- Prior art keywords
- glass tube
- shaped glass
- micro
- correcting
- pressure sensor
- Prior art date
- 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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- Measuring Fluid Pressure (AREA)
Abstract
The utility model belongs to Engine Block Test technical field, and in particular to a kind of micro-pressure sensor means for correcting.A kind of micro-pressure sensor means for correcting proposed has the fixed plate being disposed vertically；U-shaped glass tube is fixed in the fixed plate；Aqueous medium is filled in the U-shaped glass tube；The open at one end of U-shaped opening end of the U-shaped glass tube is communicated with the atmosphere, and other end opening is equipped with Three-way hose pipe；One end of Three-way hose pipe is connected with U-shaped glass tube, and the other end is connected with air charging system, and third end with sensor to be detected or gas pressure measuring point for connecting.The utility model ensures that sensor accurately corrects, and has the characteristics that constructional simplicity can reliable, measurement parameter accurate and effective.
Description
Technical field
The utility model belongs to Engine Block Test technical field, and in particular to a kind of micro-pressure sensor means for correcting.
Background technique
When correcting engine pressure sensor, it may be desirable to use pressure-measuring instrument；And general pressure clamp precision is
2kPa is then measured inaccurate, it is necessary to use special electronic micro-pressure measuring device lower than 2kPa；The equipment cost is higher, in workshop
Difficult repairing easy to damage when frequently using, it is difficult to meet normal production requirement.
Opposing electronic device, water manometer when measuring low pressure advantageously.A kind of water manometer is such as designed to be used for
The correction of sensor will greatly save cost and be conducive to promote.
Utility model content
Aiming at the problem that micro-pressure sensor bad correction, the purpose of this utility model is to propose a kind of micro-pressure sensor correction
Device.
In order to achieve the above object, the utility model adopts the following technical solution；
A kind of micro-pressure sensor means for correcting, the micro-pressure sensor means for correcting have the fixed plate being disposed vertically；
U-shaped glass tube is fixed in the fixed plate；Aqueous medium is filled in the U-shaped glass tube；The U-shaped glass tube it is U-shaped
The open at one end of open end is communicated with the atmosphere, and other end opening is equipped with Three-way hose pipe；One end of Three-way hose pipe
It is connected with U-shaped glass tube, the other end is connected with air charging system, and third end is used to survey with sensor to be detected or gas pressure
Point connection.
The utility model proposes a kind of micro-pressure sensor means for correcting, utilize the accurate corresponding former of water-column and pressure
Manage the measurement accuracy, it can be achieved that 0.01kPa, it is ensured that sensor accurately corrects, and has constructional simplicity can reliable, measurement parameter
The characteristics of accurate and effective.
Detailed description of the invention
Fig. 1 is the structure chart of the utility model.
In figure；1, air charging system, 2, pipe clamp, 3, fixed plate, 4, U-shaped glass tube, 5, Three-way hose pipe.
Specific embodiment
Further the utility model is illustrated below in conjunction with the drawings and specific embodiments:
As shown in Figure 1, a kind of micro-pressure sensor means for correcting, the micro-pressure sensor means for correcting, which has, to be disposed vertically
Fixed plate 3；U-shaped glass tube 4 is fixed with by pipe clamp 2 in the fixed plate 3；It is situated between in the U-shaped glass tube 4 filled with water
Matter；The open at one end of U-shaped opening end of the U-shaped glass tube 4 is communicated with the atmosphere, and it is soft that other end opening is equipped with threeway rubber
Pipe 5；One end of Three-way hose pipe 5 is connected with U-shaped glass tube, and the other end is connected with air charging system, third end be used for to
The sensor or gas pressure measuring point of detection connect.
In use, slowly being pressurizeed by holding air charging system, until the difference in height of water column reaches specified value in U-tube.It is right
Than the numerical value of sensor output, as variant, it is corrected.
The device also can be directly used for the measurement of gas pressure, and rubber hose is connected measuring point, reads water-column difference and is
It can.
Claims (1)
1. a kind of micro-pressure sensor means for correcting, it is characterised in that: the micro-pressure sensor means for correcting, which has, to be disposed vertically
Fixed plate；U-shaped glass tube is fixed in the fixed plate；Aqueous medium is filled in the U-shaped glass tube；The U-shaped glass
The open at one end of U-shaped opening end of glass pipe is communicated with the atmosphere, and other end opening is equipped with Three-way hose pipe；Threeway rubber is soft
One end of pipe is connected with U-shaped glass tube, and the other end is connected with air charging system, and third end is used for and sensor to be detected or gas
The connection of body pressure-measuring-point.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820919033.XU CN208432360U (en) | 2018-06-14 | 2018-06-14 | A kind of micro-pressure sensor means for correcting |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820919033.XU CN208432360U (en) | 2018-06-14 | 2018-06-14 | A kind of micro-pressure sensor means for correcting |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208432360U true CN208432360U (en) | 2019-01-25 |
Family
ID=65101259
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820919033.XU Expired - Fee Related CN208432360U (en) | 2018-06-14 | 2018-06-14 | A kind of micro-pressure sensor means for correcting |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208432360U (en) |
-
2018
- 2018-06-14 CN CN201820919033.XU patent/CN208432360U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20190125 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |