CN210037073U - Pressure sensor performance testing device - Google Patents
Pressure sensor performance testing device Download PDFInfo
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- CN210037073U CN210037073U CN201921205728.2U CN201921205728U CN210037073U CN 210037073 U CN210037073 U CN 210037073U CN 201921205728 U CN201921205728 U CN 201921205728U CN 210037073 U CN210037073 U CN 210037073U
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- pressure sensor
- insulation resistance
- resistance tester
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Abstract
The utility model provides a pressure sensor capability test device, includes multi-path relay, multi-path relay connects measurement and control instrument and insulation resistance tester respectively, and the pressure sensor's that awaits measuring electric cable links to each other with multi-path relay to the pressure sensor's that awaits measuring casing passes through casing contact frock and connects insulation resistance tester, through insulation resistance tester test pressure sensor's that awaits measuring insulation resistance, through the zero output value of measurement and control instrument test pressure sensor that awaits measuring, multi-path relay's action is by change over switch control. The utility model discloses use the multichannel relay to connect pressure sensor and insulation resistance tester, the measurement and control instrument that awaits measuring, only need connect pressure sensor's electric cable in the testing process, change over switch is as multichannel relay's high-low level switching controller, the utility model discloses with pressure sensor insulation resistance detection and zero point output detection integration together, promoted work efficiency greatly.
Description
Technical Field
The utility model belongs to the pressure sensor field, concretely relates to pressure sensor capability test device.
Background
A Pressure Transducer (Pressure Transducer) is a device or apparatus that can sense a Pressure signal and convert the Pressure signal into a usable output electrical signal according to a certain rule. Pressure sensors are generally composed of a pressure sensing element and a signal processing unit, and can be classified into gauge pressure sensors, differential pressure sensors and absolute pressure sensors according to different types of test pressures.
The pressure sensor is the most common sensor in industrial practice and widely applied to various industrial self-control environments, zero output and insulation performance are two key indexes of pressure sensor products, and the two indexes are also important attention indexes of various manufacturers. In the prior art, the two performance detections are performed in different processes, and in operation, a worker needs to repeatedly connect an electrical connection cable of the pressure sensor with two instruments and repeatedly connect a cable. In recent years, with the increase of the customization requirements of customers and the increase of the productivity of sensors, the testing of the two indexes usually takes more labor and time for the manufacturing process.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to the problem among the above-mentioned prior art, a pressure sensor capability test device is provided, can detect pressure sensor insulation resistance and zero output detection integration together, be connected pressure sensor electrical connection cable and insulation resistance tester and detect, be connected pressure sensor electrical connection cable and measurement and control instrument simultaneously and examine pressure sensor's zero output value, it is qualified to ensure pressure sensor zero output capability, pressure sensor zero output value test, pressure sensor insulation capability test only needs to connect once input or output cable conductor, promote work efficiency greatly.
In order to achieve the above purpose, the utility model discloses there is following technical scheme: the pressure sensor to be tested is connected with the insulation resistance tester through a shell contact tool; the insulation resistance between the electric cable of the pressure sensor to be tested and the shell of the pressure sensor to be tested is tested through the insulation resistance tester, the zero output value of the pressure sensor to be tested is tested through the measurement and control instrument, and the switching action of the normally open contact and the normally closed contact of the multi-path relay is controlled through the selector switch.
Preferably, the electrical cable of the pressure sensor to be tested is connected with the common end of the multi-path relay, the normally open end of the multi-path relay is connected with the insulation resistance tester, and the normally closed end of the multi-path relay is connected with the measurement and control instrument.
Preferably, the change-over switch is a capacitive sensing touch switch or a foot switch.
Preferably, the shell contact tool is in adsorption contact with a shell of the pressure sensor to be detected through a magnet.
The preferential multi-way relay adopts a ZZ-IO404D type relay with four-way switching value input and four-way relay output.
Preferably, the measurement and control instrument selects the MSB9418 type full-digital measurement and control instrument, supplies power to the pressure sensor to be measured through the power-on automatic reading function of the measurement and control instrument, so that the pressure sensor works, and detects the output voltage of the pressure sensor through the measurement and control instrument, and the output value of the pressure sensor is displayed on an instrument display screen.
Preferably, the insulation resistance tester is a TH2681A type insulation resistance tester, an electric cable of the pressure sensor is connected with the anode of a test wire of the insulation resistance tester, and the shell of the pressure sensor is connected with the cathode of the test wire of the insulation resistance tester; the insulation resistance tester applies corresponding voltage to the pressure sensor according to the standard of the pressure sensor to be tested, and alarms after the measured insulation resistance value exceeds the insulation grade required by the pressure sensor.
Based on above-mentioned technical scheme, compare in prior art, the utility model discloses following beneficial effect has: the multi-path relay is used for connecting a pressure sensor to be tested, an insulation resistance tester and a measurement and control instrument, an electric cable of the pressure sensor only needs to be connected once in the test process, the insulation resistance tester and the measurement and control instrument are respectively connected with the normally open end and the closed end of the multi-path relay, a shell of the pressure sensor to be tested is connected with the insulation resistance tester through a shell contact tool, and a change-over switch is used as a high-low level switching controller of the multi-path relay to control the on-off of a pressure sensor zero-position measuring output circuit and a pressure sensor insulation resistance detection circuit. The utility model discloses detect pressure sensor insulation resistance and zero output detection integration together, promoted work efficiency greatly.
Further, the utility model discloses a through the magnetic adsorption contact between casing contact frock and the pressure sensor's that awaits measuring casing, casing contact frock convenient to use, the contact is firm reliable, can the simplified operation process.
Drawings
In order to more clearly illustrate the technical solution of the present invention, the drawings needed to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
FIG. 1 is a schematic view of the structure connection of the present invention;
in the drawings: 1-a pressure sensor; 2-a diverter switch; 3-a multi-way relay; 4-a measurement and control instrument; 5-insulation resistance tester; 6-shell contact tooling.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention.
Based on the embodiments in the present invention, a person skilled in the art can also perform a plurality of simple modifications and decorations without creative work, and all other embodiments obtained belong to the protection scope of the present invention.
Reference throughout this specification to "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment can be included in at least one embodiment of the present invention. The appearances of the phrase in various places in the specification are not necessarily all referring to the same embodiment, nor are separate or alternative embodiments mutually exclusive of other embodiments. It is explicitly and implicitly understood by a person skilled in the art that the embodiments described in the present invention can be combined with other embodiments.
Referring to fig. 1, the utility model provides a pressure sensor capability test device structurally includes multi-path relay 3, and observe and control instrument 4 and insulation resistance tester 5 are connected respectively to multi-path relay 3's output, and the electrical cable of pressure sensor 1 that awaits measuring links to each other with multi-path relay 3's input to the casing of pressure sensor 1 that awaits measuring passes through casing contact frock 6 and connects insulation resistance tester 5. The insulation resistance between the electric cable of the pressure sensor 1 to be tested and the shell of the pressure sensor to be tested is tested by the insulation resistance tester 5, and the zero output value of the pressure sensor 1 to be tested is tested by the measurement and control instrument 4. The electric cable of the pressure sensor 1 to be tested is connected with the public end of the multi-path relay 3, the normally open end of the multi-path relay 3 is connected with the insulation resistance tester 5, and the normally closed end of the multi-path relay 3 is connected with the measurement and control instrument 4. The switching action of the normally open contact and the normally closed contact of the multi-path relay 3 is controlled by the change-over switch 2, and the change-over switch 2 adopts a capacitance type induction touch switch or a foot switch.
The embodiment of the utility model provides a contact through the magnet absorption between casing contact frock 6 and the casing of pressure sensor 1 that awaits measuring.
The embodiment multichannel relay 3 chooses ZZ-IO404D type relay that has four ways switching value input and four ways relay output for use, and measurement and control instrument 4 chooses MSB9418 type full-digital measurement and control appearance for use, through the automatic function of reading of the last electricity of measurement and control instrument 4, supplies power to pressure sensor 1 that awaits measuring, makes pressure sensor 1 carry out work to, detect pressure sensor 1's output voltage through measurement and control instrument 4, show pressure sensor 1's output value at the instrument display screen display. The insulation resistance tester 5 selects a TH2681A type insulation resistance tester, an electric cable of the pressure sensor 1 is connected with the positive pole of a test wire of the insulation resistance tester 5, and a shell of the pressure sensor 1 is connected with the negative pole of the test wire of the insulation resistance tester 5.
The utility model discloses insulation resistance tester 5 applys corresponding voltage to pressure sensor 1 according to the pressure sensor's of awaiting measuring 1 standard, can report to the police after the insulation resistance value that the measurement reachs surpasses the insulation level that pressure sensor 1 required.
The following provides a specific action process of an embodiment of the present invention is:
when the capacitive touch switch or the foot switch is not pressed or stepped on, the switch of the multi-path relay 3 is kept normally open, the electrical end of the pressure sensor 1 is connected with the insulation resistance tester 5 through the multi-path relay module 3, the shell of the pressure sensor 1 is connected with the insulation resistance tester 5 through the shell contact tool 6, and the insulation resistance of the pressure sensor 1 is tested at the moment; when the capacitance type touch switch or the foot switch is pressed or stepped on, the normally open contact of the switch of the multi-path relay 3 is closed, the normally closed contact is opened, the pressure sensor 1 is connected with the measurement and control instrument 4 through the multi-path relay 3, and at the moment, the zero output value of the pressure sensor 1 is tested.
The utility model discloses there is following technological effect who is showing:
the multi-path relay 3 is used for connecting the pressure sensor 1, the insulation resistance tester 5 and the measurement and control instrument 4, only a sensor cable needs to be connected once in the test process, and the production efficiency is effectively improved; by using the shell contact tool 6, the shell of the pressure sensor 1 is attracted and contacted by the magnet of the shell contact tool 6, and the contact is firm and reliable; a capacitive sensing touch switch or a foot switch is used as a control switch of the multi-path relay, so that the control is convenient; the whole scheme is reasonable, the structure is simple and compact, and the implementation is easy.
The present invention has been described above with reference to specific features and embodiments thereof, and it will be apparent that various modifications and combinations can be made thereto without departing from the spirit and scope of the invention. Accordingly, the specification and figures are merely exemplary of the invention as defined in the appended claims and are intended to cover any and all modifications, variations, combinations, or equivalents within the scope of the invention. It is apparent that those skilled in the art can make various modifications and variations to the present invention, which also fall within the scope of the claims of the present invention and their equivalents.
Claims (7)
1. The utility model provides a pressure sensor capability test device which characterized in that: the pressure sensor testing device comprises a multi-path relay (3), wherein the output end of the multi-path relay (3) is respectively connected with a measurement and control instrument (4) and an insulation resistance tester (5), an electric cable of a pressure sensor (1) to be tested is connected with the input end of the multi-path relay (3), and a shell of the pressure sensor (1) to be tested is connected with the insulation resistance tester (5) through a shell contact tool (6); insulation resistance between the electric cable of the pressure sensor (1) to be tested and the shell of the pressure sensor to be tested is tested through the insulation resistance tester (5), the zero output value of the pressure sensor (1) to be tested is tested through the measurement and control instrument (4), and the normally open switching action of the multi-path relay (3) and the normally closed contact is controlled through the change-over switch (2).
2. The pressure sensor performance testing apparatus of claim 1, wherein: the electric cable of the pressure sensor (1) to be tested is connected with the public end of the multi-path relay (3), the normally open end of the multi-path relay (3) is connected with the insulation resistance tester (5), and the normally closed end of the multi-path relay (3) is connected with the measurement and control instrument (4).
3. The pressure sensor performance testing apparatus of claim 1, wherein: the change-over switch (2) adopts a capacitive sensing touch switch or a foot switch.
4. The pressure sensor performance testing apparatus of claim 1, wherein: the shell body contact tool (6) is in adsorption contact with the shell body of the pressure sensor (1) to be detected through a magnet.
5. The pressure sensor performance testing apparatus of claim 1, wherein: the multi-path relay (3) adopts a ZZ-IO404D type relay with four-path switching value input and four-path relay output.
6. The pressure sensor performance testing apparatus of claim 1, wherein: measurement and control instrument (4) choose MSB9418 type all-digital measurement and control appearance for use, through the automatic function of reading of the power-on of measurement and control instrument (4), supply power to pressure sensor (1) that awaits measuring, make pressure sensor (1) carry out work, and, through measurement and control instrument (4) detect pressure sensor's (1) output voltage, show pressure sensor's (1) output value at the instrument display screen display.
7. The pressure sensor performance testing apparatus of claim 1, wherein: the insulation resistance tester (5) is a TH2681A type insulation resistance tester, an electric cable of the pressure sensor (1) is connected with the positive electrode of a testing wire of the insulation resistance tester (5), and the shell of the pressure sensor (1) is connected with the negative electrode of the testing wire of the insulation resistance tester (5); the insulation resistance tester (5) applies corresponding voltage to the pressure sensor (1) according to the standard of the pressure sensor (1) to be tested, and alarms after the measured insulation resistance value exceeds the insulation grade required by the pressure sensor (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921205728.2U CN210037073U (en) | 2019-07-29 | 2019-07-29 | Pressure sensor performance testing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921205728.2U CN210037073U (en) | 2019-07-29 | 2019-07-29 | Pressure sensor performance testing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210037073U true CN210037073U (en) | 2020-02-07 |
Family
ID=69350407
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921205728.2U Active CN210037073U (en) | 2019-07-29 | 2019-07-29 | Pressure sensor performance testing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210037073U (en) |
-
2019
- 2019-07-29 CN CN201921205728.2U patent/CN210037073U/en active Active
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