CN102788659A - Temperature compensation parameter self operation method of digital pressure gauge - Google Patents
Temperature compensation parameter self operation method of digital pressure gauge Download PDFInfo
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- CN102788659A CN102788659A CN2011101316173A CN201110131617A CN102788659A CN 102788659 A CN102788659 A CN 102788659A CN 2011101316173 A CN2011101316173 A CN 2011101316173A CN 201110131617 A CN201110131617 A CN 201110131617A CN 102788659 A CN102788659 A CN 102788659A
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Abstract
The invention relates to a temperature compensation parameter self operation method of a digital pressure gauge. The temperature compensation parameter self operation method is mainly that a correction program is set up in a microcontroller (MCU) of the pressure gage, the pressure gage is arranged in a temperature box with temperature control, the pressure gage is connected with a pressure source outside the temperature box, the correction program set in the pressure gage is directly used, and temperature compensation parameters (Tco) of the pressure gage without pressure and the temperature compensation parameters (Tcs) of the pressure gage under full pressure are obtained through self operation. A main method is that output of zero points of two temperature zones is automatically measured, temperature coefficients (Tco) of the pressure gage without the pressure are calculated, simultaneously output of the zero points of the two temperature zones under the pressure is measured, the temperature compensation parameters (Tcs) are self calculated accordingly, the two kinds of the compensation parameters are stored in a storage of the pressure gage, and when the pressure gage is used for working temperature measurement in different environments, a pressure correction formula containing the two kinds of the compensation parameters can be calculated to obtain accurate pressure reading value.
Description
Technical field
The invention relates to the method for a kind of digital pressure gauge temperature compensation parameter oneself computing; Referring in particular to a kind of tensimeter that makes can more simple and easy facility in the setting of carrying out temperature compensation; Set the spent time can effectively save the tensimeter temperature compensation; Reduction equipment and running cost, and use the method innovation of the digital pressure gauge temperature compensation parameter oneself computing that more increases the practical effect characteristic to design its whole execution.
Background technology
General common various tensimeters, it can reduce because of temperature variation exerts an influence to the measured force value of this tensimeter, avoids the force value temperature influence generation error of measuring in the setting that the Shi Jiexu that dispatches from the factory carries out temperature compensation.
Wherein, such tensimeter is when carrying out temperature compensation setting operation, and it is to be provided with a temperature-controlled cabinet, will count the tensimeter arrangement and place in this temperature-controlled cabinet.Make computing machine carry out line with each tensimeter respectively through communication interface; Control this temperature-controlled cabinet and change temperature; Make the temperature rising of temperature-controlled cabinet or drop to a fixed temperature, this moment, each tensimeter promptly can be because of temperature change, and its measured force value changes.Then the computing machine temperature compensation parameter input of each tensimeter being tried to achieve through communication interface is stored in the manometric storer, makes tensimeter after dispatching from the factory when carrying out the measurement of force value, can temperature compensated minimizing because of influence that temperature variation produced.
Yet said temperature compensation making mode is carried out the expection effect that temperature compensation is set though it can reach to tensimeter; But also on its practical operation is implemented, find,, make computing machine respectively each tensimeter carried out line because this tensimeter need be arranged and place in the temperature-controlled cabinet; And make the temperature-controlled cabinet rising or drop to a fixed temperature; Can try to achieve each manometric temperature compensation parameter, and, be very trouble inconvenience in the operation because of needs computing machine and each tensimeter carry out line respectively; And carrying out in the process of line respectively to each tensimeter relatively; Also very expend time in, its running cost of related increase causes order and in the design that its integrated operation is implemented, still has improved space.
Summary of the invention
The inventor is because the defective of above-mentioned prior art; Adhering to for many years the abundant of these relevant industries designs and develops and the actual fabrication experience; Study improvement to existing structure and disappearance; A kind of digital pressure gauge temperature compensation parameter oneself is provided the method for computing, in the hope of reaching the purpose of better practical value.
The method of digital pressure gauge temperature compensation parameter oneself of the present invention computing; It mainly is in manometric microcontroller (MCU), to have correction program; And this tensimeter is inserted in the incubator that can control temperature and pressure, with can directly utilize this manometric microcontroller in the correction program built obtain tensimeter at the temperature compensation parameter under the no pressure (Tco) and the tensimeter temperature compensation parameter (Tcs) under full pressure from row operation.And with measured tensimeter the temperature coefficient under the no pressure (Tco), tensimeter the Temperature numerical (Ti1) of the following temperature coefficient (Tcs) of full pressure, temperature 1, temperature 1 and do not have force value (Pso1) pressure under reach temperature 1 and completely each temperature compensation parameter of pressure distance values (Span1) under the pressure be stored in the manometric storer.
By this, tensimeter is more simple and easy facility in the setting of carrying out temperature compensation, effectively saves the tensimeter temperature compensation and sets the spent time, and more increase the practical effect characteristic its whole execution in the use.
Description of drawings
Fig. 1 is an action flow chart of the present invention;
Fig. 2 is program flow diagram of the present invention (one);
Fig. 3 is program flow diagram of the present invention (two).
Embodiment
For the technology contents, the goal of the invention that make the present invention use and the effect reached thereof have more complete and clearly disclose, now under specify it, and please consult the accompanying drawing and the figure number of being taken off in the lump:
At first, see also shown in Fig. 1 action flow chart of the present invention, Fig. 2 program flow diagram of the present invention () and Fig. 3 program flow diagram of the present invention (two).The present invention is had correction program in manometric microcontroller (MCU); And this tensimeter is inserted in the incubator that can control temperature and pressure; With can directly utilize this manometric microcontroller in the correction program built; From row operation obtain tensimeter at the temperature compensation parameter no pressure under (Tco) and tensimeter at full pressure temperature compensation parameter (Tcs) down, and with tensimeter expiring the Temperature numerical (Ti1) of temperature coefficient (Tcs) under the pressure, temperature 1 at the temperature coefficient under the no pressure (Tco), tensimeter, in temperature 1 and do not have force value (Pso1) under the pressure and reach in temperature 1 and pressure distance values (Span1) the equitemperature compensating parameter that expires under the pressure and be stored in the manometric storer.Following coefficient capable of using and temperature compensation formula (1) are tried to achieve force value accurately during measurement.
P＝FS/Span1×[1+(Ti-Ti1)×Tcs]×[Ps-Pso1+(Ti-Ti1)×Tco]……(1)
FS: the full pressure of temperature 1
Ps: measured force value
P: the force value after the temperature compensation
Establishing method step of the present invention is following:
1. the tensimeter that will in microcontroller (MCU), have correction program is inserted in the incubator that can control temperature and pressure;
2 carry out the temperature compensation correction program, and whether detecting reaches temperature 1;
3 when arriving temperature 1, makes actual Temperature numerical (Ti1) of tensimeter record and record force value (Pso1), the pressure distance values (Span1) when calculating pressurization;
4. make the incubator temperature change, make the temperature 2 after whether the tensimeter detecting reaches the incubator temperature change;
5. when reaching temperature 2, make actual Temperature numerical (Ti2) of tensimeter record and record force value (Pso2), the pressure distance values (Span2) when pressurizeing to calculate;
6. to carry out the calculating of temperature compensation parameter, try to achieve the temperature compensation parameter (Tco) of tensimeter under no pressure like (2)
Tco＝(Pso2-Pso1)/(Ti2-Ti1)……(2)
Try to achieve the temperature compensation parameter (Tcs) of tensimeter under full pressure like (3)
Tcs＝[(Span2-Span1)/(Ti2-Ti1)]/Span1……(3)；
7. judge that whether this temperature compensation parameter is reasonable, sends the abnormality warnings signal when unreasonable.Otherwise the temperature compensation parameter after being about to proofread and correct is stored in the manometric storer, sets to accomplish.
In addition; The present invention is in the assignment procedure that carries out the tensimeter temperature compensation; Can making at that time, temperature is tensimeter first temperature from NMO correction; The Temperature numerical of its physical record (Ti1) is the normal temperature temperature, and when arriving temperature 2, the Temperature numerical of its physical record (Ti2) then is any another temperature that is different from the normal temperature temperature.So when tensimeter is done temperature correction; Can record a normal temperature Temperature numerical (Ti1) immediately; After treating that this incubator temperature rises; Promptly can record another Temperature numerical (Ti2) that is different from normal temperature in this incubator again immediately, the energy can operated and save to this mode fast, accomplishes manometric temperature compensation and set step.
Yet aforesaid embodiment or accompanying drawing and non-limiting product structure of the present invention or use-pattern, any person of ordinary skill in the field's suitable variation or modification all should be regarded as not breaking away from patent category of the present invention.
Claims (2)
1. the method for digital pressure gauge temperature compensation parameter oneself computing; It is characterized in that; Said method mainly is in manometric microcontroller, to have correction program, directly utilize this tensimeter in the correction program built, obtain each temperature compensation parameter from row operation.
2. the method for digital pressure gauge temperature compensation parameter oneself computing; It is characterized in that; Said method mainly is in manometric microcontroller, to have correction program; Directly utilize this manometric microcontroller in the correction program built; Obtain tensimeter at temperature compensation parameter under the no pressure (Tco) and the temperature compensation parameter (Tcs) of tensimeter under full pressure from row operation; And with tensimeter at the temperature coefficient under the no pressure (Tco), tensimeter in the Temperature numerical (Ti1) of the following temperature coefficient (Tcs) of full pressure, temperature 1, in temperature 1 and do not have force value (Pso1) pressure under and reach in temperature 1 and the full pressure distance values (Span1) under the pressure, all be stored in the manometric storer; Its establishing method step is following:
The tensimeter that a. will in microcontroller, have correction program is inserted in the incubator that can control temperature and pressure;
B. carry out the temperature compensation correction program, whether detecting reaches temperature 1;
C. when arriving temperature 1, make actual Temperature numerical (Ti1) of tensimeter record and record force value (Pso1), the pressure distance values (Span1) when pressurizeing to calculate;
D. make the incubator temperature change, make the temperature 2 after whether the tensimeter detecting reaches the incubator temperature change;
E. when reaching temperature 2, make actual Temperature numerical (Ti2) of tensimeter record and record force value (Pso2), the pressure distance values (Span2) when pressurizeing to calculate;
F. carry out the calculating of temperature compensation parameter, try to achieve the temperature compensation parameter (Tco) of tensimeter under no pressure, and try to achieve the temperature compensation parameter (Tcs) of tensimeter under full pressure;
G. judge whether this temperature compensation parameter is reasonable, sends the abnormality warnings signal when unreasonable, otherwise the temperature compensation parameter after be about to proofreading and correct is stored in the manometric storer, accomplished setting.
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| Application Number | Priority Date | Filing Date | Title |
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| CN2011101316173A CN102788659A (en) | 2011-05-19 | 2011-05-19 | Temperature compensation parameter self operation method of digital pressure gauge |
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| CN2011101316173A CN102788659A (en) | 2011-05-19 | 2011-05-19 | Temperature compensation parameter self operation method of digital pressure gauge |
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| CN102788659A true CN102788659A (en) | 2012-11-21 |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104697711A (en) * | 2015-02-15 | 2015-06-10 | 广东风华芯电科技股份有限公司 | Pressure calibration method and device for tire pressure sensor |
| CN106248295A (en) * | 2016-08-31 | 2016-12-21 | 合肥迈思瑞仪器仪表有限公司 | The method of calibration of digital pressure testers based on temperature correction feedback |
| CN106908197A (en) * | 2017-03-02 | 2017-06-30 | 成都信息工程大学 | Bearing calibration is demarcated in a kind of pressure gauge temperature drift |
| CN106950002A (en) * | 2017-02-24 | 2017-07-14 | 中国航天空气动力技术研究院 | A kind of Flush Airdata Sensing System |
| CN107012313A (en) * | 2016-01-27 | 2017-08-04 | 鞍钢股份有限公司 | Method for calibrating pressure in heating furnace |
| CN112462740A (en) * | 2020-11-25 | 2021-03-09 | 中国兵器工业集团第二一四研究所苏州研发中心 | Temperature compensation calibration method for Stirling refrigerator controller |
| CN113720524A (en) * | 2021-08-26 | 2021-11-30 | 北京七星华创流量计有限公司 | Pressure detection method and pressure detection system |
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| US4612811A (en) * | 1985-06-14 | 1986-09-23 | Gentran, Inc. | Temperature compensating pressure gage |
| CN1699946A (en) * | 2005-05-12 | 2005-11-23 | 江汉大学 | In-circuit programmable automatic temperature compensation silicon piezoresistive transducer |
| CN102062209A (en) * | 2010-11-15 | 2011-05-18 | 奇瑞汽车股份有限公司 | Self-adaptive control method and device for eliminating drifting of sensor |
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2011
- 2011-05-19 CN CN2011101316173A patent/CN102788659A/en active Pending
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| US4612811A (en) * | 1985-06-14 | 1986-09-23 | Gentran, Inc. | Temperature compensating pressure gage |
| CN1699946A (en) * | 2005-05-12 | 2005-11-23 | 江汉大学 | In-circuit programmable automatic temperature compensation silicon piezoresistive transducer |
| CN102062209A (en) * | 2010-11-15 | 2011-05-18 | 奇瑞汽车股份有限公司 | Self-adaptive control method and device for eliminating drifting of sensor |
Non-Patent Citations (1)
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104697711A (en) * | 2015-02-15 | 2015-06-10 | 广东风华芯电科技股份有限公司 | Pressure calibration method and device for tire pressure sensor |
| CN107012313A (en) * | 2016-01-27 | 2017-08-04 | 鞍钢股份有限公司 | Method for calibrating pressure in heating furnace |
| CN106248295A (en) * | 2016-08-31 | 2016-12-21 | 合肥迈思瑞仪器仪表有限公司 | The method of calibration of digital pressure testers based on temperature correction feedback |
| CN106950002A (en) * | 2017-02-24 | 2017-07-14 | 中国航天空气动力技术研究院 | A kind of Flush Airdata Sensing System |
| CN106908197A (en) * | 2017-03-02 | 2017-06-30 | 成都信息工程大学 | Bearing calibration is demarcated in a kind of pressure gauge temperature drift |
| CN106908197B (en) * | 2017-03-02 | 2019-03-15 | 成都信息工程大学 | A kind of pressure gauge temperature drift calibration bearing calibration |
| CN112462740A (en) * | 2020-11-25 | 2021-03-09 | 中国兵器工业集团第二一四研究所苏州研发中心 | Temperature compensation calibration method for Stirling refrigerator controller |
| CN113720524A (en) * | 2021-08-26 | 2021-11-30 | 北京七星华创流量计有限公司 | Pressure detection method and pressure detection system |
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Application publication date: 20121121 |