CN202903814U - Temperature compensation and time drift correction device for acceleration sensor - Google Patents
Temperature compensation and time drift correction device for acceleration sensor Download PDFInfo
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- CN202903814U CN202903814U CN 201220604967 CN201220604967U CN202903814U CN 202903814 U CN202903814 U CN 202903814U CN 201220604967 CN201220604967 CN 201220604967 CN 201220604967 U CN201220604967 U CN 201220604967U CN 202903814 U CN202903814 U CN 202903814U
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- acceleration sensor
- temperature compensation
- acceleration transducer
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Abstract
The utility model provides a temperature compensation and time drift correction device for an acceleration sensor. The device comprises a temperature sensor for detecting ambient temperature of an acceleration sensor, a processor for calculating the change of the output quantity of the acceleration sensor along temperature and performing temperature compensation on the output quantity of the acceleration sensor, a memory for storing data, and an input module for manually modifying the drift correction parameter, wherein the temperature sensor is connected with the processor through an AD (analogue/digital) input port; the input module and the memory are respectively connected with I/O (input/output) ports of the processor; and the processor is connected with the acceleration sensor to be compensated. According to the device provided by the utility model, the temperature compensation equation with high accuracy and good university can be conveniently found through the average fit coefficients of the output measure temperature changes of the acceleration sensor under different acceleration speed states, thus, the problem of temperature compensation for the acceleration sensor is solved.
Description
Technical field
The utility model belongs to electron device and manufactures field, be specifically related to a kind of acceleration transducer temperature compensation and the time float correcting device.
Background technology
The temperature drift phenomenon of sensor is the inherent characteristic of sensor; The temperature drift meeting more or less impacts Sensor Output Characteristic.
Domestic existing sensor adopts mimic channel to compensate the sensor temperature drift effect more.This is that a kind of employing warm argument part contrary with the sensor temperature drift direction eliminated the control method that temperature is floated effect.
There is certain problem in the mimic channel compensation method in the sensor production use procedure: the one, and the work of compensating circuit adjustment coupling is very meticulous, it in the sensor production process, is the output accuracy that guarantees sensor, need, through a large amount of debugging and test job, cause its production cycle relatively long; The 2nd, its compensation adjustment circuit floats effect in the time of also can producing along with the passing of service time, causes sensor accuracy to reduce, and is unfavorable for the accuracy guarantee of product in line using.
At present domestic also have the way that adopts design and obtain effect preferably sensor.Conventional method is the output valve in each temperature range, each test mode by survey sensor, simulates the temperature characterisitic equation of sensor, reaches the purpose of temperature compensation.But this temperature compensation can not well be useful in the acceleration transducer temperature compensation, its main cause temperature range span large (55
.c to 70
.c), can't accomplish accurately to simulate each accekeration at each probe temperature point.
The utility model content
The technical problems to be solved in the utility model is: provide a kind of acceleration transducer temperature compensation and the time float correcting device, preferably resolve the problem of acceleration transducer temperature compensation.
The utility model is to solve the problems of the technologies described above taked technical scheme to be: a kind of acceleration transducer temperature compensation and the time float correcting device, it is characterized in that: it comprise for detection of the temperature sensor of acceleration transducer environment temperature, for calculate acceleration transducer output quantity variation with temperature and to the acceleration transducer output quantity carry out the processor of temperature compensation, for the storer of storing data and for the load module of manual modification drift correction parameter; Wherein temperature sensor is connected with processor by the AD input port, and load module is connected with the I/O mouth of processor respectively with storer, and processor is connected with acceleration transducer to be compensated.
Press such scheme, described processor is connected with computing machine or mobile terminal by communication module.
A kind of acceleration transducer temperature compensation and the time float modification method, it is characterized in that: it comprises the following steps:
In the environment that is aG, bG, cG at acceleration, by high-low temperature chamber analog acceleration sensor environment for use temperature variation; A, b, c are real number, and G is acceleration of gravity;
When degree of will speed up is aG, bG, cG, each temperature spot overload output quantity is recorded respectively, by the method for curve, finds out respectively aG, bG, cG temperature-acceleration change curve, obtains the Mean curve coefficient;
The Mean curve coefficient is write to the temperature compensation equation, for the temperature compensation of acceleration transducer;
At set intervals the drift correction parameter is carried out to manual modification.
Preferably, described a gets 0, b and gets 1, c and get-1.
The beneficial effects of the utility model are:
1, employing the utility model can be in natural gravity state environment, by acceleration transducer output value temperature variation average fit coefficient under different acceleration condition, find out very easily that precision is higher, versatility temperature compensation equation preferably, solve the problem of acceleration transducer temperature compensation.
2,, after acceleration transducer works long hours, the output data may be drifted about, and can manually change drift correction parameter in storer by computing machine or input media, and acceleration transducer is carried out to drift correction.
The accompanying drawing explanation
The structured flowchart that Fig. 1 is the utility model one embodiment.
Embodiment
The structured flowchart that Fig. 1 is the utility model one embodiment, the acceleration transducer temperature compensation and the time float correcting device comprise temperature sensor for detection of the acceleration transducer environment temperature, for calculate acceleration transducer output quantity variation with temperature and to the acceleration transducer output quantity carry out the processor of temperature compensation, for the storer of storing data and for the load module of manual modification drift correction parameter; Wherein temperature sensor is connected with processor by the AD input port, and load module is connected with the I/O mouth of processor respectively with storer, and processor is connected with acceleration transducer to be compensated.Processor is connected with computing machine or mobile terminal by communication module, for manual modification drift correction parameter.
Based on above-mentioned acceleration transducer temperature compensation and the time float temperature compensation that correcting device realizes and the time float modification method and comprise the following steps: at acceleration, be that aG, bG, cG(a, b, c are real number, G is acceleration of gravity, in the present embodiment, a gets 0, b gets 1, c gets-1) environment in, by high-low temperature chamber analog acceleration sensor environment for use temperature variation; When degree of will speed up is aG, bG, cG, each temperature spot overload output quantity is recorded respectively, by the method for curve, finds out respectively aG, bG, cG temperature-acceleration change curve, obtains the Mean curve coefficient; The Mean curve coefficient is write to the temperature compensation equation, for the temperature compensation of acceleration transducer; At set intervals the drift correction parameter is carried out to manual modification.
Claims (2)
- An acceleration transducer temperature compensation and the time float correcting device, it is characterized in that: it comprise for detection of the temperature sensor of acceleration transducer environment temperature, for calculate acceleration transducer output quantity variation with temperature and to the acceleration transducer output quantity carry out the processor of temperature compensation, for the storer of storing data and for the load module of manual modification drift correction parameter; Wherein temperature sensor is connected with processor by the AD input port, and load module is connected with the I/O mouth of processor respectively with storer, and processor is connected with acceleration transducer to be compensated.
- Acceleration transducer temperature compensation according to claim 1 and the time float correcting device, it is characterized in that: described processor is connected with computing machine or mobile terminal by communication module.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220604967 CN202903814U (en) | 2012-11-16 | 2012-11-16 | Temperature compensation and time drift correction device for acceleration sensor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220604967 CN202903814U (en) | 2012-11-16 | 2012-11-16 | Temperature compensation and time drift correction device for acceleration sensor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202903814U true CN202903814U (en) | 2013-04-24 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220604967 Expired - Fee Related CN202903814U (en) | 2012-11-16 | 2012-11-16 | Temperature compensation and time drift correction device for acceleration sensor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202903814U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102944688A (en) * | 2012-11-16 | 2013-02-27 | 航宇救生装备有限公司 | Temperature compensation and time drift correction device and method for acceleration sensor |
| CN103558415A (en) * | 2013-11-19 | 2014-02-05 | 中国兵器工业集团第二一四研究所苏州研发中心 | MEMS accelerometer with temperature compensation function |
| CN106970409A (en) * | 2017-05-17 | 2017-07-21 | 成都理工大学 | The γ absorbed dose rates instrument corrected with soil moisture and bearing calibration |
-
2012
- 2012-11-16 CN CN 201220604967 patent/CN202903814U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102944688A (en) * | 2012-11-16 | 2013-02-27 | 航宇救生装备有限公司 | Temperature compensation and time drift correction device and method for acceleration sensor |
| CN103558415A (en) * | 2013-11-19 | 2014-02-05 | 中国兵器工业集团第二一四研究所苏州研发中心 | MEMS accelerometer with temperature compensation function |
| CN103558415B (en) * | 2013-11-19 | 2016-05-11 | 中国兵器工业集团第二一四研究所苏州研发中心 | With the mems accelerometer of temperature-compensating |
| CN106970409A (en) * | 2017-05-17 | 2017-07-21 | 成都理工大学 | The γ absorbed dose rates instrument corrected with soil moisture and bearing calibration |
| CN106970409B (en) * | 2017-05-17 | 2023-08-25 | 成都理工大学 | Gamma absorption dose rate instrument with soil humidity correction function and correction method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130424 Termination date: 20181116 |