CN206756375U - Pressure sensor field test device - Google Patents
Pressure sensor field test device Download PDFInfo
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- CN206756375U CN206756375U CN201720582647.9U CN201720582647U CN206756375U CN 206756375 U CN206756375 U CN 206756375U CN 201720582647 U CN201720582647 U CN 201720582647U CN 206756375 U CN206756375 U CN 206756375U
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- pressure
- pressure sensor
- field test
- test device
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Abstract
The utility model discloses a kind of pressure sensor field test device, including one end is blind end, and the other end is the closed pressure vessel of opening port;The pressure relief ball valve interface connected with tube cavity body, pressure source interface and intuition pressure detecting table interface are provided with the tube wall of closed pressure vessel;It is provided with to fix along plate, fixation at opening port and sealing ring and bolt fixing hole is provided with along plate.The utility model is tested by pressure measuring tool, the degree of accuracy of field test pressure sensor.When scene is replaced without new pressure sensor, pressure reference data can also be obtained, and by correcting pressure value coefficient, does not purchase completion in new sensor, adds correction factor, can use temporarily;After the utility model application, it is excessively frequent that the pressure sensor that scene is just using finds that pressure value does not change or changed, can detection sensor order of accuarcy immediately, judge whether that changing pressure sensor avoids because of construction parameter feedback error, the problem of causing surface subsidence or protuberance.
Description
Technical field
Shield machine sensor check apparatus field is the utility model is related to, specially a kind of pressure sensor field test
Device.
Background technology
Pressure sensor is a kind of sensor the most commonly used in industrial practice, and the output of general usual pressure sensor is
Analog signal, analog signal refer to that information parameter shows as continuous signal in given range.Or in one continuous time
In interval, the characteristic quantity of its representative information can be rendered as the signal of any number in any moment.And we are usually used
Pressure sensor is mainly what is be fabricated using piezo-electric effect, and such sensor is also referred to as piezoelectric transducer;Pressure sensing
It is widely used in various industrial automatic control environment with device, is related to water conservancy and hydropower, railway traffic, intelligent building, production automatic control, aviation boat
My god, numerous industries such as military project, petrochemical industry, oil well, electric power, ship, lathe, pipeline.
Pressure sensor is existing in a device using more and more extensively, and pressure sensor damaged condition is currently without effective
Determination methods, it is only capable of, simply by artificial pressing mode, electric current value changes occurring, qualitatively judges pressure sensor damaged condition,
Order of accuarcy and error range can not be quantitatively judged.
Job site can not quantitatively judge pressure sensor order of accuarcy, can only be sent to manufacturer, be tested through specialty
Platform is checked, for large scale equipments such as the tunneling equipment that construction speed is very nervous, especially shield machines, need to shut down compared with
Long time treatment pressure sensor failure, very big inconvenience is caused to scene.
Scene judges that pressure sensor truth is kept to shield-tunneling construction soil pressure and grouting pressure size is shield-tunneling construction
Two key parameters;Therefore, it can be that field apparatus uses with the technology of Site Detection pressure sensor order of accuarcy to research and develop a kind of
The urgent problem of side.
The content of the invention
In order to overcome above-mentioned deficiency of the prior art, the utility model provides a kind of simple in construction, side of operating with
Just, tested by pressure measuring tool, the degree of accuracy of field test pressure sensor.When scene is replaced without new pressure sensor,
Pressure reference data can also be obtained, and by correcting pressure value coefficient, completion is not purchased in new sensor, add amendment system
Number, the pressure sensor field test device that can be used temporarily.
What the purpose of this utility model was realized in:
Pressure sensor field test device, including one end are blind end, and the seal-off pressure that the other end is opening port D holds
Device 5;The pressure relief ball valve interface 1 connected with tube cavity body, pressure source interface 2 are provided with the tube wall of described closed pressure vessel
With intuition pressure detecting table interface 3;
It is provided with to fix along plate 9, described fixation at described opening port D and sealing ring 6 and bolt is provided with along plate 9
Fixing hole;
The pressure relief ball valve for carrying out pressure release to closed pressure vessel 5 is connected with described pressure relief ball valve interface 1;
Described pressure source interface 2 goes out to be connected with gas or pressure source, and pressure conveying control is carried out by the single-phase valve of pressure source
System;
The intuition pressure of true pressure value in the described connecting detection closed pressure vessel 5 of intuition pressure detecting table interface 3
Detect table interface 3;
Described opening port D connections need the pressure tool 4 detected, it is necessary to which the pressure tool 4 of detection is connected by wire 7
Connect shield machine original display circuit.
Positive beneficial effect:The utility model is tested by pressure measuring tool, the degree of accuracy of field test pressure sensor.When
When scene is replaced without new pressure sensor, pressure reference data can also be obtained, and by correcting pressure value coefficient, in new biography
Sensor does not purchase completion, adds correction factor, can use temporarily;After the utility model application, the pressure that scene is just using passes
Sensor(Especially soil pressure and grouting pressure sensor)It was found that pressure value does not change or changed excessively frequent, biography can be detected immediately
Sensor order of accuarcy, judge whether that changing pressure sensor avoids, because of construction parameter feedback error, causing surface subsidence or protuberance
The problem of.
Brief description of the drawings
Fig. 1 is structural representation one of the present utility model;
Fig. 2 is Fig. 1 right view;
It is in figure:The Instrument for Pressure that pressure relief ball valve interface 1, pressure source interface 2, intuition pressure detecting table interface 3, needs detect
It is device 4, closed pressure vessel 5, sealing ring 6, wire 7, bolt 8, fixed along plate 9.
Embodiment
Below in conjunction with the accompanying drawings, the utility model is described further:
As shown in Figure 1 and Figure 2, pressure sensor field test device, including one end are blind end, and the other end is openend
Mouth D closed pressure vessel 5;The pressure relief ball valve connected with tube cavity body is provided with the tube wall of described closed pressure vessel to connect
Mouth 1, pressure source interface 2 and intuition pressure detecting table interface 3;
It is provided with to fix along plate 9, described fixation at described opening port D and sealing ring 6 and bolt is provided with along plate 9
Fixing hole;
The pressure relief ball valve for carrying out pressure release to closed pressure vessel 5 is connected with described pressure relief ball valve interface 1;
Described pressure source interface 2 goes out to be connected with gas or pressure source, and pressure conveying control is carried out by the single-phase valve of pressure source
System;
The intuition pressure of true pressure value in the described connecting detection closed pressure vessel 5 of intuition pressure detecting table interface 3
Detect table interface 3;
Described opening port D connections need the pressure tool 4 detected, it is necessary to which the pressure tool 4 of detection is connected by wire 7
Connect shield machine original display circuit.
In use, the pressure tool 4 for needing to detect is passed along the bolt fixing hole on plate 9 to enter in fixed by bolt 8
Row is fixed, while sealing ring 6 plays sealing function;Ball valve is set in pressure relief ball valve interface 1, pressure release effect is act as, that is, completes
Pressure release is carried out after pressure test, is easy to next use;Pressure source interface 2 sets connection pressure source mouth, can be passed through gases at high pressure,
Hydrostatic sensor is such as detected, is passed through hydraulic oil, and connects individual event valve, prevents pressure leakage;Intuition pressure detecting table interface 3 connects
External pressure tap, measures true pressure value in body cavity, the pressure tool that opening port D connections need to detect, and pressure tool is connected to
In shield machine primary circuit, shown by display screen, contrast actual pressure and actual value gap, draw curve map, find show value
With the correction factor of true pressure, true pressure value is fed back, can be with short-period used.
The utility model is tested by pressure measuring tool, the degree of accuracy of field test pressure sensor.When scene is not pressed newly
When force snesor is replaced, pressure reference data can also be obtained, and by correcting pressure value coefficient, do not purchased in new sensor
Into, add correction factor, can use temporarily;After the utility model application, the live pressure sensor just used(It is especially native
Pressure and grouting pressure sensor)It was found that pressure value do not change or change it is excessively frequent, can detection sensor order of accuarcy immediately,
Judge whether that changing pressure sensor avoids because of construction parameter feedback error, the problem of causing surface subsidence or swell.
Implement to be merely to illustrate preferred embodiment of the present utility model above, but the utility model is not limited to above-mentioned reality
Mode is applied, in the field those of ordinary skill possessed knowledge, institute within the spirit and principles of the utility model
Any modification, equivalent substitute and the improvement etc. made, its all should cover the claimed technical scheme scope of the utility model it
It is interior.
Claims (6)
1. pressure sensor field test device, it is characterised in that:It is blind end including one end, the other end is opening port(D)
Closed pressure vessel(5);The pressure relief ball valve connected with tube cavity body is provided with the tube wall of described closed pressure vessel to connect
Mouthful(1), pressure source interface(2)With intuition pressure detecting table interface(3).
2. pressure sensor field test device according to claim 1, it is characterised in that:Described opening port(D)
Place is provided with fixed along plate(9), described fixation is along plate(9)On be provided with sealing ring(6)And bolt fixing hole.
3. pressure sensor field test device according to claim 1, it is characterised in that:Described pressure relief ball valve interface
(1)Place is connected with for closed pressure vessel(5)Carry out the pressure relief ball valve of pressure release.
4. pressure sensor field test device according to claim 1, it is characterised in that:Described pressure source interface
(2)Go out to be connected with gas or pressure source, pressure conveying control is carried out by the single-phase valve of pressure source.
5. pressure sensor field test device according to claim 1, it is characterised in that:Described intuition pressure detecting
Table interface(3)Connecting detection closed pressure vessel(5)The intuition pressure detecting table interface of interior true pressure value(3).
6. pressure sensor field test device according to claim 2, it is characterised in that:Described opening port(D)
Connection needs the pressure tool detected(4), it is necessary to the pressure tool of detection(4)Pass through wire(7)Connect the former display electricity of shield machine
Road.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201720582647.9U CN206756375U (en) | 2017-05-24 | 2017-05-24 | Pressure sensor field test device |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201720582647.9U CN206756375U (en) | 2017-05-24 | 2017-05-24 | Pressure sensor field test device |
Publications (1)
Publication Number | Publication Date |
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CN206756375U true CN206756375U (en) | 2017-12-15 |
Family
ID=60620264
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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CN201720582647.9U Active CN206756375U (en) | 2017-05-24 | 2017-05-24 | Pressure sensor field test device |
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Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN107941405A (en) * | 2017-12-29 | 2018-04-20 | 福建省三星电气股份有限公司 | Hydrostatic sensor and its bearing calibration |
CN108007637A (en) * | 2017-12-25 | 2018-05-08 | 辽宁三三工业有限公司 | A kind of shield machine muddy water cabin soil mud pressure sensor more changing device and its method for carrying out replacing sensor |
-
2017
- 2017-05-24 CN CN201720582647.9U patent/CN206756375U/en active Active
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN108007637A (en) * | 2017-12-25 | 2018-05-08 | 辽宁三三工业有限公司 | A kind of shield machine muddy water cabin soil mud pressure sensor more changing device and its method for carrying out replacing sensor |
CN107941405A (en) * | 2017-12-29 | 2018-04-20 | 福建省三星电气股份有限公司 | Hydrostatic sensor and its bearing calibration |
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