CN214373113U - Pressure sensor testing device - Google Patents
Pressure sensor testing device Download PDFInfo
- Publication number
- CN214373113U CN214373113U CN202120434541.0U CN202120434541U CN214373113U CN 214373113 U CN214373113 U CN 214373113U CN 202120434541 U CN202120434541 U CN 202120434541U CN 214373113 U CN214373113 U CN 214373113U
- Authority
- CN
- China
- Prior art keywords
- electromagnetic valve
- pressure
- air
- controller
- 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
Links
Images
Landscapes
- Measuring Fluid Pressure (AREA)
Abstract
The utility model discloses a pressure sensor testing device, which comprises a main controller, a first electromagnetic valve, a second electromagnetic valve, a third electromagnetic valve, a four-way pipe fitting, a pressure controller, an air pressure supply unit and a vacuumizing unit; three interfaces of the four-way pipe fitting are respectively connected with a first electromagnetic valve, a second electromagnetic valve and a third electromagnetic valve, and a fourth interface of the four-way pipe fitting is used for connecting a pressure sensor to be detected; the first electromagnetic valve is connected with an air outlet of the pressure controller, an air inlet of the pressure controller is connected with the air pressure supply unit, and the output air pressure is controlled by the pressure controller; the second electromagnetic valve is communicated with the atmosphere, and the third electromagnetic valve is connected with the vacuumizing unit; first solenoid valve, second solenoid valve, third solenoid valve are connected with the master controller respectively, through the break-make of three solenoid valve of master controller control, can realize the appointed pressure value positive pressure test, negative pressure test and the test of circulation pulsation to pressure sensor to effectively test pressure sensor's performance and life.
Description
Technical Field
The utility model belongs to the technical field of detect testing arrangement, concretely relates to pressure sensor testing arrangement.
Background
With the increasing application scenes of the pressure sensor, the demand of the pressure sensor is increasing, and the requirements on the performance and the service life of the pressure sensor are higher and higher. Most of existing pressure sensor structures are connected with a peripheral circuit through a gold wire by a pressure chip, the gold wire is usually protected by silica gel together with the pressure chip, the change of air pressure is sensed by the silica gel and transmitted to the pressure chip, the silica gel senses the pressure and can bring self shaking, the gold wire wrapped in the silica gel can also deform, and therefore the gold wire is damaged, the pressure chip is badly connected with the peripheral circuit, even is disconnected, and the long-term reliability of a product is affected. Therefore, there is a need for an apparatus to test the performance and reliability of pressure sensors.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to overcome prior art not enough, provide a pressure sensor testing arrangement.
The utility model discloses a realize through following technical scheme:
a pressure sensor testing device comprises a main controller, a first electromagnetic valve, a second electromagnetic valve, a third electromagnetic valve, a four-way pipe fitting, a pressure controller, an air pressure supply unit and a vacuumizing unit;
the four-way pipe fitting comprises four interfaces, a first interface of the four-way pipe fitting is connected with a first interface of the first electromagnetic valve through a pipeline, a second interface of the four-way pipe fitting is connected with a first interface of the second electromagnetic valve through a pipeline, a third interface of the four-way pipe fitting is connected with a first interface of the third electromagnetic valve through a pipeline, and a fourth interface of the four-way pipe fitting is used for connecting a pressure sensor to be detected; the second interface of the first electromagnetic valve is connected with the air outlet of the pressure controller through a pipeline, the air inlet of the pressure controller is connected with the air pressure supply unit, and the output air pressure is controlled through the pressure controller; a second port of the second electromagnetic valve is communicated with the atmosphere, and a second port of the third electromagnetic valve is connected with the vacuumizing unit through a pipeline; the first electromagnetic valve, the second electromagnetic valve and the third electromagnetic valve are respectively connected with the main controller, and the main controller controls the on-off of the three electromagnetic valves.
In the above technical scheme, the solenoid valve driving circuit units are respectively arranged between the main controller and each solenoid valve to amplify voltage and drive the solenoid valves.
In the technical scheme, the main controller is also connected with an upper computer, and the main controller is controlled by the upper computer.
In the above technical scheme, the air pressure supply unit comprises an air compressor and an air storage tank, wherein an air outlet of the air compressor is communicated with an air inlet of the air storage tank, an air outlet of the air storage tank is communicated with an air inlet of the pressure controller, compressed air is pumped into the air storage tank through the air compressor, and then the air storage tank provides a stable pressure air source for the pressure controller.
The utility model discloses an advantage and beneficial effect do:
the utility model discloses a pressure sensor testing arrangement simple structure, reasonable in design, the cost is lower, can realize the appointed pressure value malleation test, negative pressure test and the circulation pulsation test to pressure sensor to effectively test pressure sensor's performance and life.
Drawings
Fig. 1 is a schematic view of a connection structure of the pressure sensor testing device of the present invention.
Fig. 2 is a schematic structural diagram of the vacuum pumping unit of the present invention.
For a person skilled in the art, other relevant figures can be obtained from the above figures without inventive effort.
Detailed Description
In order to make the technical field person understand the solution of the present invention better, the technical solution of the present invention is further described below with reference to the specific embodiments.
Referring to fig. 1, a pressure sensor testing device includes a main controller, a first solenoid valve, a second solenoid valve, a third solenoid valve, a four-way pipe, a pressure controller, an air pressure supply unit, and a vacuum pumping unit.
The four-way pipe fitting comprises four interfaces, a first interface of the four-way pipe fitting is connected with a first interface of the first electromagnetic valve through a pipeline, a second interface of the four-way pipe fitting is connected with a first interface of the second electromagnetic valve through a pipeline, a third interface of the four-way pipe fitting is connected with a first interface of the third electromagnetic valve through a pipeline, and a fourth interface of the four-way pipe fitting is used for connecting a pressure sensor to be detected; the second interface of the first electromagnetic valve is connected with the air outlet of the pressure controller through a pipeline, the air inlet of the pressure controller is connected with the air pressure supply unit, and the output air pressure is controlled through the pressure controller; a second port of the second electromagnetic valve is communicated with the atmosphere, and a second port of the third electromagnetic valve is connected with the vacuumizing unit through a pipeline; the first electromagnetic valve, the second electromagnetic valve and the third electromagnetic valve are respectively connected with the main controller, and the main controller controls the on-off of the three electromagnetic valves.
Furthermore, an electromagnetic valve driving circuit unit is respectively arranged between the main controller and each electromagnetic valve to amplify voltage and drive the electromagnetic valves.
Furthermore, the main controller is also connected with an upper computer, and the main controller is controlled by the upper computer.
Further, referring to fig. 2, the air pressure supply unit includes an air compressor and an air tank, an air outlet of the air compressor is communicated with an air inlet of the air tank, an air outlet of the air tank is communicated with an air inlet of the pressure controller, compressed air is pumped into the air tank through the air compressor, and the air tank provides a stable pressure air source for the pressure controller.
Furthermore, the pressure controller adopts a mechanical type, and the output air pressure can be adjusted by adjusting a pressure setting knob of the pressure controller; or the pressure controller adopts an electric control type, the electric control type pressure controller is connected with the main controller, and the pressure controller is controlled by the main controller.
The working principle of the device is as follows:
the main controller controls the first electromagnetic valve, the second electromagnetic valve and the third electromagnetic valve according to the setting of the upper computer, when the first electromagnetic valve is switched on and the second electromagnetic valve and the third electromagnetic valve are switched off (namely the control state of the main controller to the three electromagnetic valves is 1, 0 and 0), the pressure air source acts on the pressure sensor to be tested through the first electromagnetic valve and the four-way valve, and the pressure sensor to be tested is subjected to positive pressure test; when the second electromagnetic valve is switched on and the first electromagnetic valve and the third electromagnetic valve are switched off (namely the control states of the main controller to the three electromagnetic valves are 0, 1 and 0), the pressure air source is discharged through the second electromagnetic valve, and at the moment, the pressure sensor to be detected has no pressure action; when the third electromagnetic valve is switched on and the first electromagnetic valve and the second electromagnetic valve are switched off (namely the control states of the main controller to the three electromagnetic valves are 0, 0 and 1), vacuum negative pressure acts on the pressure sensor to be tested through the third electromagnetic valve and the four-way valve, and the pressure sensor to be tested is subjected to negative pressure test; according to the control mode, the positive pressure, no pressure and negative pressure circulating tests are carried out, and the service life and the performance of the pressure sensor can be tested. In addition, it is also possible to perform only positive pressure, no pressure cycle tests, or to perform negative pressure, no pressure cycle tests.
Spatially relative terms, such as "upper," "lower," "left," "right," and the like, may be used in the embodiments for ease of description to describe one element or feature's relationship to another element or feature as illustrated in the figures. It will be understood that the spatial terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. For example, if the device in the figures is turned over, elements described as "below" other elements or features would then be oriented "above" the other elements or features. Thus, the exemplary term "lower" can encompass both an upper and a lower orientation. The device may be otherwise oriented (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.
Moreover, relational terms such as "first" and "second," and the like, may be used solely to distinguish one element from another element having the same name, without necessarily requiring or implying any actual such relationship or order between such elements.
The invention has been described above by way of example, and it should be noted that any simple variants, modifications or other equivalent substitutions by a person skilled in the art without spending creative effort may fall within the scope of protection of the present invention without departing from the core of the present invention.
Claims (4)
1. A pressure sensor testing device is characterized in that: the vacuum pump comprises a main controller, a first electromagnetic valve, a second electromagnetic valve, a third electromagnetic valve, a four-way pipe fitting, a pressure controller, an air pressure supply unit and a vacuum pumping unit;
the four-way pipe fitting comprises four interfaces, a first interface of the four-way pipe fitting is connected with a first interface of the first electromagnetic valve through a pipeline, a second interface of the four-way pipe fitting is connected with a first interface of the second electromagnetic valve through a pipeline, a third interface of the four-way pipe fitting is connected with a first interface of the third electromagnetic valve through a pipeline, and a fourth interface of the four-way pipe fitting is used for connecting a pressure sensor to be detected; the second interface of the first electromagnetic valve is connected with the air outlet of the pressure controller through a pipeline, the air inlet of the pressure controller is connected with the air pressure supply unit, and the output air pressure is controlled through the pressure controller; a second port of the second electromagnetic valve is communicated with the atmosphere, and a second port of the third electromagnetic valve is connected with the vacuumizing unit through a pipeline; the first electromagnetic valve, the second electromagnetic valve and the third electromagnetic valve are respectively connected with the main controller, and the main controller controls the on-off of the three electromagnetic valves.
2. The pressure sensor testing device of claim 1, wherein: and an electromagnetic valve driving circuit unit is respectively arranged between the main controller and each electromagnetic valve.
3. The pressure sensor testing device of claim 1, wherein: the main controller is also connected with an upper computer and controls the main controller through the upper computer.
4. The pressure sensor testing device of claim 1, wherein: the air pressure supply unit comprises an air compressor and an air storage tank, an air outlet of the air compressor is communicated with an air inlet of the air storage tank, and an air outlet of the air storage tank is communicated with an air inlet of the pressure controller.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120434541.0U CN214373113U (en) | 2021-02-26 | 2021-02-26 | Pressure sensor testing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120434541.0U CN214373113U (en) | 2021-02-26 | 2021-02-26 | Pressure sensor testing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214373113U true CN214373113U (en) | 2021-10-08 |
Family
ID=77966830
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120434541.0U Expired - Fee Related CN214373113U (en) | 2021-02-26 | 2021-02-26 | Pressure sensor testing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214373113U (en) |
-
2021
- 2021-02-26 CN CN202120434541.0U patent/CN214373113U/en not_active Expired - Fee Related
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN206505160U (en) | A kind of pressure switch detecting system | |
| CN214373113U (en) | Pressure sensor testing device | |
| CN103977978A (en) | High pressure water gun pump station with bolt interlocking device | |
| CN103983404B (en) | A kind of detection device of solar water heater water tank | |
| CN214373112U (en) | Pressure sensor testing device | |
| CN209841307U (en) | Sensor gas leakage detection system | |
| CN201984059U (en) | Gas preprocessing monitor and warning system | |
| CN216073071U (en) | Dual-power medical molecular sieve oxygen generation system | |
| CN201124586Y (en) | Overload protector for press | |
| CN2483707Y (en) | Gas leakage hunting apparatus | |
| CN2420473Y (en) | Automatic detector for four-way change-over valve of air conditioner | |
| CN205332457U (en) | Air conditioner pressure automatic regulating apparatus | |
| CN203756487U (en) | Intelligent control system through compressed air flow | |
| CN201401957Y (en) | Heat pump water heater control device compatible with electric heating function | |
| CN209264452U (en) | Water hammer testing machine | |
| CN208966745U (en) | Multigang valve | |
| CN210240186U (en) | Durability test system for hydraulic pump and motor | |
| CN204101306U (en) | Air-conditioning system proving installation | |
| CN108374814B (en) | Energy accumulator test bed and control method thereof | |
| CN208968792U (en) | A kind of high sensitivity pressure-relief valve spring test device | |
| CN208013248U (en) | Attachment device and test system | |
| CN110471326A (en) | A kind of more hoistable platform control systems and control method | |
| CN216956786U (en) | Integrated pressure control device | |
| CN215053499U (en) | Double-water-source, double-system, environment-friendly and energy-saving pipe network booster pump station | |
| CN212180244U (en) | Pressure switch and pressure tank life detection device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20211008 |