CN103852196A - Pressure sensor control system with temperature compensation - Google Patents
Pressure sensor control system with temperature compensation Download PDFInfo
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- CN103852196A CN103852196A CN201210513553.8A CN201210513553A CN103852196A CN 103852196 A CN103852196 A CN 103852196A CN 201210513553 A CN201210513553 A CN 201210513553A CN 103852196 A CN103852196 A CN 103852196A
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- temperature
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- pressure sensor
- chip microcomputer
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Abstract
The invention discloses a pressure sensor control system with temperature compensation. After the output of a pressure sensor is amplified through a differential amplifier, AD conversion is carried out on the output through an AD converter. Pressure data on which AD conversion is carried out are input to a single chip microcomputer with a displayer, and the single chip microcomputer receives temperature data sent by a temperature sensor at the same time. An initialization module and a calibration module are arranged in the single chip microcomputer, the initialization module is used for initializing the received pressure data, the calibration module is used for calibrating a zero point of the pressure sensor and carrying out the temperature drifting compensation and nonlinearity compensation on current data according to reset parameters, and a final result is displayed through the displayer. According to the pressure sensor control system, the temperature compensation can be carried out on the output data of the pressure sensor, and the precision of the measured data is greatly improved.
Description
Technical field
The present invention relates to pressure sensor application technical field, particularly a kind of pressure transducer control system with temperature compensation.
Background technology
Pressure transducer utilizes resistor disc along with thereby STRESS VARIATION resistance also respective change is obtained force value, but the resistance of resistor disc also will be subject to the impact of environment temperature simultaneously, at different temperature, the resistance of resistor disc has certain drift, thereby have influence on final test result, therefore need it to carry out temperature compensation.
Summary of the invention
In order to overcome above-mentioned the deficiencies in the prior art, the object of the present invention is to provide a kind of pressure transducer control system with temperature compensation.
To achieve these goals, the technical solution used in the present invention is:
A kind of pressure transducer control system with temperature compensation, the output of pressure transducer is carried out AD conversion by AD converter after differential amplifier amplifies, pressure data after AD transforms is input in the single-chip microcomputer with display, single-chip microcomputer receives the temperature data that temperature sensor sends simultaneously, in single-chip microcomputer, there are initialization module and calibration module, the pressure data receiving is carried out initialization by initialization module, the zero point correction of calibration module pressure charge sensor, and according to parameter preset, current data is carried out to temperature drift compensation and nonlinear compensation, and net result is shown on display.
Compared with prior art, the present invention can carry out temperature compensation to the output data of pressure transducer, and the data precision of measuring is significantly improved.
Accompanying drawing explanation
Accompanying drawing is structural representation of the present invention.
Embodiment
Below in conjunction with drawings and Examples, the present invention is carried out to more detailed explanation.
As shown in the figure, the present invention is a kind of pressure transducer control system with temperature compensation, the output of pressure transducer is carried out AD conversion by AD converter after differential amplifier amplifies, pressure data after AD transforms is input in the single-chip microcomputer with display, single-chip microcomputer receives the temperature data that temperature sensor sends simultaneously, in single-chip microcomputer, there are initialization module and calibration module, the pressure data receiving is carried out initialization by initialization module, the zero point correction of calibration module pressure charge sensor, and according to parameter preset, current data is carried out to temperature drift compensation and nonlinear compensation, and net result is shown on display.
In the present invention, pressure transducer preferably uses constant current source power supply, can directly eliminate the impact of temperature on sensor output signal.The data of pressure transducer are carried out after differential amplification and AD conversion, be input to and in single-chip microcomputer, carry out initialization, single-chip microcomputer receives current real time temperature data simultaneously, then carry out temperature drift compensation and nonlinear compensation by calibration module according to the parameter in pre-set programs and database, and net result is shown on display.
Claims (1)
1. the pressure transducer control system with temperature compensation, the output of pressure transducer is carried out AD conversion by AD converter after differential amplifier amplifies, pressure data after AD transforms is input in the single-chip microcomputer with display, single-chip microcomputer receives the temperature data that temperature sensor sends simultaneously, it is characterized in that, in single-chip microcomputer, there are initialization module and calibration module, the pressure data receiving is carried out initialization by initialization module, the zero point correction of calibration module pressure charge sensor, and according to parameter preset, current data is carried out to temperature drift compensation and nonlinear compensation, and net result is shown on display.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210513553.8A CN103852196A (en) | 2012-11-30 | 2012-11-30 | Pressure sensor control system with temperature compensation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210513553.8A CN103852196A (en) | 2012-11-30 | 2012-11-30 | Pressure sensor control system with temperature compensation |
Publications (1)
| Publication Number | Publication Date |
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| CN103852196A true CN103852196A (en) | 2014-06-11 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
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| CN201210513553.8A Pending CN103852196A (en) | 2012-11-30 | 2012-11-30 | Pressure sensor control system with temperature compensation |
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| CN (1) | CN103852196A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105571767A (en) * | 2016-03-18 | 2016-05-11 | 山东昊润自动化技术有限公司 | Silicon capacitive digital output barometer |
| CN106006430A (en) * | 2016-06-29 | 2016-10-12 | 南京中船绿洲机器有限公司 | Constant tension control method of electric anchor and mooring equipment |
| CN106808436A (en) * | 2015-11-20 | 2017-06-09 | 美克司株式会社 | Instrument |
| CN107941417A (en) * | 2017-11-10 | 2018-04-20 | 苏州华兴源创电子科技有限公司 | The output calibrating installation and method of a kind of pressure sensor |
| CN111721466A (en) * | 2020-06-28 | 2020-09-29 | 东风汽车集团有限公司 | Method and system for correcting zero drift of pressure sensor |
-
2012
- 2012-11-30 CN CN201210513553.8A patent/CN103852196A/en active Pending
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106808436A (en) * | 2015-11-20 | 2017-06-09 | 美克司株式会社 | Instrument |
| US11154976B2 (en) | 2015-11-20 | 2021-10-26 | Max Co., Ltd. | Tool including load sensor |
| CN105571767A (en) * | 2016-03-18 | 2016-05-11 | 山东昊润自动化技术有限公司 | Silicon capacitive digital output barometer |
| CN106006430A (en) * | 2016-06-29 | 2016-10-12 | 南京中船绿洲机器有限公司 | Constant tension control method of electric anchor and mooring equipment |
| CN107941417A (en) * | 2017-11-10 | 2018-04-20 | 苏州华兴源创电子科技有限公司 | The output calibrating installation and method of a kind of pressure sensor |
| CN107941417B (en) * | 2017-11-10 | 2024-05-07 | 苏州华兴源创科技股份有限公司 | Output calibration device and method for pressure sensor |
| CN111721466A (en) * | 2020-06-28 | 2020-09-29 | 东风汽车集团有限公司 | Method and system for correcting zero drift of pressure sensor |
| CN111721466B (en) * | 2020-06-28 | 2021-08-06 | 东风汽车集团有限公司 | Method and system for correcting zero drift of pressure sensor |
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| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20140611 |