CN206161228U - Water -cooled digit pressure sensor - Google Patents
Water -cooled digit pressure sensor Download PDFInfo
- Publication number
- CN206161228U CN206161228U CN201621183778.1U CN201621183778U CN206161228U CN 206161228 U CN206161228 U CN 206161228U CN 201621183778 U CN201621183778 U CN 201621183778U CN 206161228 U CN206161228 U CN 206161228U
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- pressure
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- water
- outfan
- digital
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Abstract
Water -cooled digit pressure sensor, including the shell, the one end of shell is provided with pressure joint, the one end of pressing the pipe is drawn in the embedding in pressure joint's the inner chamber, draw press the pipe other end setting in the water tank, set up drawing in the water tank to be provided with pressure sensor, the last temperature sensor that is provided with of pressure sensor on the body of pressing the pipe, the other end of shell is provided with inlet tube and outlet pipe, advances the water inlet of water piping connection water tank, goes out the delivery port of water piping connection water tank, digital signal processing module's first input end and second input difference connection pressure sensing element and temperature sensor's output, and the input of measurement output cable is connected to digital signal processing module's output, during the use, digital signal processing circuit is used for gathering pressure sensor and temperature sensor's output signal, carries out the temperature drift compensation according to the temperature sensor measured value to pressure sensor simultaneously, the utility model has the advantages of the cooling effect is good, the interference killing feature is strong, the measuring accuracy is high.
Description
Technical field
This utility model is related to sensor technical field, more particularly to water-cooled digital pressure sensor.
Background technology
Existing pressure transducer, in use there are the following problems：(1) because cooling water can not flow through sensing element
Position, effective discharge is little, causes cooling-down effect not highly desirable；(2) because sensor body is big, on the one hand can take larger
Installing space, on the other hand in equipment running process due to itself vibration produced by random error can be coupled to measurement letter
In number, such error is difficult accurate calculating and also is difficult to eliminate；(3) existing sensor is typically by manually by strain gauge adhesion
On strain films, there is a problem of that sluggish big, concordance is poor, be unfavorable for that long-term dynamics are measured；(4) due to operating ambient temperature
(, from -60～1000 DEG C of changes, ambient temperature is from -60～300 DEG C of changes for medium temperature) big with working media range of temperature,
Simple analog temperature compensation can not be compensated and corrected exactly to pressure transducer, cause sensor measured value and actual value
There is larger difference, add the impact of sensor individuals difference, cause measurement error to be difficult amendment.
The content of the invention
In order to overcome the shortcoming of above-mentioned prior art, the purpose of this utility model is to provide a kind of little for hot operation environment
Type, rational in infrastructure, measurement accurately, measure reliable water-cooled digital pressure sensor.
In order to achieve the above object, the technical scheme that this utility model is taken is：
Water-cooled digital pressure sensor, including shell 2, one end of shell 2 is provided with compression fittings 1, compression fittings 1
One end of pressure guiding pipe 4 is embedded in inner chamber, the other end of pressure guiding pipe 4 is arranged in the inner chamber of water tank 3, is arranged on drawing in water tank 3
Pressure-sensing device 5 is provided with the body of pressure pipe 4, temperature sensor 6 is provided with pressure-sensing device 5；Shell 2 it is another
End is provided with water inlet pipe 8 and outlet pipe 9, and water inlet pipe 8 connects the water inlet of water tank 3, and outlet pipe 9 connects the outlet of water tank 3；Water
Between the water inlet and outlet of case 3 arrange digital signal processing module 7, the first input end of digital signal processing module 7 and
Second input connects respectively the outfan of pressure-sensing device 5 and temperature sensor 6, the output of digital signal processing module 7
The input of end connection measurement output cord 12.
Described digital signal processing module 7 includes pressure signal conditioning circuit 71 and temperature signal regulation circuit 72, pressure
The input of the first outfan connection simulated pressure signal output 73 of force signal modulate circuit 71, pressure signal conditioning circuit 71
The second outfan connection 16bit A/D change-over circuits 1 input, the outfan of 16bit A/D change-over circuits 1 is double
To the first input end of connection computation processor unit 76；The outfan connection 16bit A/D of temperature signal regulation circuit 72 turn
The input of circuit 2 75 is changed, the outfan of 16bit A/D change-over circuits 2 75 is bi-directionally connected the of computation processor unit 76
Two inputs；First outfan of computation processor unit 76 is bi-directionally connected the input of D/A converting units 77, and D/A conversions are single
The input of the outfan connection pressure signal conditioning circuit 71 of unit 77；The two-way company of second outfan of computation processor unit 76
Connect the input of digital temperature sensor 78；3rd outfan of computation processor unit 76 is bi-directionally connected data storage cell 79
Input；4th outfan of computation processor unit 76 is bi-directionally connected the input of digital interface circuit 710, digital interface
The input of the outfan connection digital pressure signal output 711 of circuit 710.
Described pressure guiding pipe 4 is funnel shaped pressure guiding pipe, and fin 44 is provided with the body of pressure guiding pipe 4.
Described water tank 3 is U-shape structure.
The water inlet of described water inlet pipe 8 connects globe joint 1 by cap nut.
The outlet of described outlet pipe 9 connects globe joint 2 11 by cap nut.
The beneficial effects of the utility model：
1st, pressure-sensing device 5 is cooled down by the cooling water cooling in water tank 3 to pressure-sensing device 5, is made
Sensor keeps in high temperature environments normal operating temperature.
2nd, temperature sensor 6 is used to monitor the temperature drift situation of pressure-sensing device 5, is the temperature of pressure-sensing device 5
Compensation provides foundation.
3rd, digital signal processing module 7 is used to gather the output signal of pressure-sensing device 5 and temperature sensor 6, and will
It is converted to digital output signal, while carrying out temperature drift benefit to pressure-sensing device 5 according to the measured value of temperature sensor 6
Repay.
Description of the drawings
Fig. 1 is structural representation of the present utility model.
Fig. 2 is the structured flowchart of this utility model digital signal processing module.
Specific embodiment
Structural principle of the present utility model and operation principle are described further below in conjunction with the accompanying drawings.
With reference to shown in Fig. 1, water-cooled digital pressure sensor, including shell 2, one end of shell 2 is provided with compression fittings
1, one end of pressure guiding pipe 4 is embedded in the inner chamber of compression fittings 1, the other end of pressure guiding pipe 4 is arranged in the inner chamber of water tank 3, is arranged
Pressure-sensing device 5 is provided with the body of the pressure guiding pipe 4 in water tank 3, on pressure-sensing device 5 temperature sensor is provided with
6；The other end of shell 2 is provided with water inlet pipe 8 and outlet pipe 9, and water inlet pipe 8 connects the water inlet of water tank 3, the connection water of outlet pipe 9
The outlet of case 3；Digital signal processing module 7, digital signal processing module 7 are set between the water inlet and outlet of water tank 3
First input end and the second input connect the outfan of pressure-sensing device 5 and temperature sensor 6 respectively, at digital signal
The input of the outfan connection measurement output cord 12 of reason module 7.
With reference to shown in Fig. 2, described digital signal processing module 7 includes that pressure signal conditioning circuit 71 and temperature signal are adjusted
Reason circuit 72, the input of the first outfan connection simulated pressure signal output 73 of pressure signal conditioning circuit 71, pressure letter
The input of the second outfan connection 16bit A/D change-over circuits 1 of number modulate circuit 71,16bit A/D change-over circuits one
74 outfan is bi-directionally connected the first input end of computation processor unit 76；The outfan connection of temperature signal regulation circuit 72
The input of 16bit A/D change-over circuits 2 75, the outfan of 16bit A/D change-over circuits 2 75 is bi-directionally connected computation processor
Second input of unit 76；First outfan of computation processor unit 76 is bi-directionally connected the input of D/A converting units 77,
The input of the outfan connection pressure signal conditioning circuit 71 of D/A converting units 77；The second of computation processor unit 76 is defeated
Go out the input that end is bi-directionally connected digital temperature sensor 78；3rd outfan of computation processor unit 76 is bi-directionally connected data
The input of memory element 79；4th outfan of computation processor unit 76 is bi-directionally connected the input of digital interface circuit 710
End, the input of the outfan connection digital pressure signal output 711 of digital interface circuit 710.
Described pressure guiding pipe 4 is funnel shaped pressure guiding pipe, and fin 44 is provided with the body of pressure guiding pipe 4.
Described water tank 3 is U-shape structure.
The water inlet of described water inlet pipe 8 connects globe joint 1 by cap nut.
The outlet of described outlet pipe 9 connects globe joint 2 11 by cap nut.
Operation principle of the present utility model：
When using, compression fittings 1 are used for being connected with the pressure interface of measured point, and pressure guiding pipe 4 is used for tested pressure value
Pressure-sensing device 5 is passed to, pressure-sensing device 5 is used for the measurement to tested pressure value；Temperature sensor 6 is used to monitor pressure
The temperature drift situation of force sensitive element 5, for the temperature-compensating of pressure-sensing device 5 foundation is provided；Digital signal processing circuit 7 is used
In collection pressure-sensing device 5 and the output signal of temperature sensor 6, and digital output signal is converted into, while foundation
The measured value of temperature sensor 6 carries out temperature drift compensation to pressure-sensing device 5；Water inlet pipe 8 is used to for cooling water to introduce water tank
3, cooling water flows into water tank 3 by water inlet pipe 8, Jing after the heat exchange of pressure guiding pipe 4 and pressure-sensing device 5, flows out from outlet pipe 9,
Realize the effect of water-cooled cooling.
The output signal of pressure-sensing device 5 is Jing after the amplification of pressure signal conditioning circuit 72, and output two-way is straight all the way
Connect and exported in the way of simulated pressure signal 73 to measurement user, another road simulated pressure signal enters 16Bit A/D conversion electricity
Road 1 enters computation processor unit 76 Jing after analog/digital conversion.In the same manner, the output signal Jing temperature of temperature sensor 6
Signal conditioning circuit 72 enters 16Bit A/D change-over circuits 2 75 and enters computation processor unit Jing after analog/digital conversion again
76, computation processor unit 76 is passed according to the temperature data table in temperature signal change data and data storage cell 79 to temperature
The output signal of sensor 6 carries out table lookup operations, calculates the temperature drift situation of pressure-sensing device 5；On this basis, calculate
Processor unit 76 carries out temperature drift compensation process to pressure signal change data, to solve pressure-sensing device 5 due to temperature
The brought measurement error of degree drift problem bigger than normal.
Claims (6)
1. water-cooled digital pressure sensor, including shell (2), it is characterised in that one end of shell (2) is provided with compression fittings
(1) one end of pressure guiding pipe (4), is embedded in the inner chamber of compression fittings (1), the other end of pressure guiding pipe (4) is arranged on the interior of water tank (3)
In chamber, pressure-sensing device (5), pressure-sensing device (5) are provided with the body of the pressure guiding pipe (4) being arranged in water tank (3)
On be provided with temperature sensor (6)；The other end of shell 2 is provided with water inlet pipe (8) and outlet pipe (9), water inlet pipe (8) connection water
The water inlet of case (3), the outlet of outlet pipe (9) connection water tank (3)；Number is set between the water inlet and outlet of water tank (3)
Word signal processing module (7), the first input end and the second input of digital signal processing module (7) connect respectively presser sensor
Element (5) and the outfan of temperature sensor (6), the outfan connection measurement output cord of digital signal processing module (7)
(12) input.
2. water-cooled digital pressure sensor according to claim 1, it is characterised in that described Digital Signal Processing mould
Block (7) includes pressure signal conditioning circuit (71) and temperature signal regulation circuit (72), the of pressure signal conditioning circuit (71)
The input of one outfan connection simulated pressure signal output (73), the second outfan connection of pressure signal conditioning circuit (71)
The input of 16bit A/D change-over circuits one (74), the outfan of 16bit A/D change-over circuits one (74) is bi-directionally connected at calculating
The first input end of reason device unit (76)；The outfan connection 16bit A/D change-over circuits two of temperature signal regulation circuit (72)
(75) input, the outfan of 16bit A/D change-over circuits two (75) is bi-directionally connected the second of computation processor unit (76)
Input；First outfan of computation processor unit (76) is bi-directionally connected the input of D/A converting units (77), D/A conversions
The input of outfan connection pressure signal conditioning circuit (71) of unit (77)；Second output of computation processor unit (76)
End is bi-directionally connected the input of digital temperature sensor (78)；3rd outfan of computation processor unit (76) is bi-directionally connected number
According to the input of memory element (79)；4th outfan of computation processor unit (76) is bi-directionally connected digital interface circuit
(710) input, the input of outfan connection digital pressure signal output (711) of digital interface circuit (710).
3. water-cooled digital pressure sensor according to claim 1, it is characterised in that described pressure guiding pipe (4) is leakage
The pressure guiding pipe of bucket shape, is provided with fin (44) on the body of pressure guiding pipe (4).
4. water-cooled digital pressure sensor according to claim 1, it is characterised in that described water tank (3) is U-shaped knot
Structure.
5. water-cooled digital pressure sensor according to claim 1, it is characterised in that described water inlet pipe (8) are entered
The mouth of a river connects globe joint one (10) by cap nut.
6. water-cooled digital pressure sensor according to claim 1, it is characterised in that described outlet pipe (9) go out
The mouth of a river connects globe joint two (11) by cap nut.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621183778.1U CN206161228U (en) | 2016-11-03 | 2016-11-03 | Water -cooled digit pressure sensor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621183778.1U CN206161228U (en) | 2016-11-03 | 2016-11-03 | Water -cooled digit pressure sensor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206161228U true CN206161228U (en) | 2017-05-10 |
Family
ID=58657394
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621183778.1U Expired - Fee Related CN206161228U (en) | 2016-11-03 | 2016-11-03 | Water -cooled digit pressure sensor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206161228U (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109132888A (en) * | 2018-10-22 | 2019-01-04 | 河南垣发专用车辆集团有限公司 | A kind of anti-tipping control device of high-altitude operation vehicle and its control method |
| CN109556784A (en) * | 2017-09-26 | 2019-04-02 | 西安国仪测控设备有限公司 | A kind of device of pressure transmitter temperature self-compensation |
| CN110375897A (en) * | 2019-07-30 | 2019-10-25 | 中车长春轨道客车股份有限公司 | A kind of load cell and its constant temperature keep system |
| CN111664967A (en) * | 2020-06-22 | 2020-09-15 | 东风商用车有限公司 | Exhaust manifold thermal stress assessment device and method |
| CN113063537A (en) * | 2021-03-17 | 2021-07-02 | 重庆大学 | Multi-dimensional force sensor constant temperature system and control algorithm thereof |
| CN115876376A (en) * | 2022-12-08 | 2023-03-31 | 中核二七二铀业有限责任公司 | Furnace pressure sampling device and furnace pressure monitoring method for uranium oxide calcining furnace |
| CN115979468A (en) * | 2022-12-08 | 2023-04-18 | 中核二七二铀业有限责任公司 | Anti-blocking and unblocking method for pipeline of calciner pressure sampling device |
-
2016
- 2016-11-03 CN CN201621183778.1U patent/CN206161228U/en not_active Expired - Fee Related
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109556784A (en) * | 2017-09-26 | 2019-04-02 | 西安国仪测控设备有限公司 | A kind of device of pressure transmitter temperature self-compensation |
| CN109132888A (en) * | 2018-10-22 | 2019-01-04 | 河南垣发专用车辆集团有限公司 | A kind of anti-tipping control device of high-altitude operation vehicle and its control method |
| CN109132888B (en) * | 2018-10-22 | 2024-06-11 | 河南垣发专用车辆集团有限公司 | Anti-tipping control device and control method for overhead working truck |
| CN110375897A (en) * | 2019-07-30 | 2019-10-25 | 中车长春轨道客车股份有限公司 | A kind of load cell and its constant temperature keep system |
| CN111664967A (en) * | 2020-06-22 | 2020-09-15 | 东风商用车有限公司 | Exhaust manifold thermal stress assessment device and method |
| CN111664967B (en) * | 2020-06-22 | 2021-05-11 | 东风商用车有限公司 | Exhaust manifold thermal stress assessment device and method |
| CN113063537A (en) * | 2021-03-17 | 2021-07-02 | 重庆大学 | Multi-dimensional force sensor constant temperature system and control algorithm thereof |
| CN113063537B (en) * | 2021-03-17 | 2022-09-09 | 重庆大学 | Multi-dimensional force sensor constant temperature system and control algorithm thereof |
| CN115876376A (en) * | 2022-12-08 | 2023-03-31 | 中核二七二铀业有限责任公司 | Furnace pressure sampling device and furnace pressure monitoring method for uranium oxide calcining furnace |
| CN115979468A (en) * | 2022-12-08 | 2023-04-18 | 中核二七二铀业有限责任公司 | Anti-blocking and unblocking method for pipeline of calciner pressure sampling device |
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| 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: 20170510 Termination date: 20191103 |
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| CF01 | Termination of patent right due to non-payment of annual fee |