Sensor calibration device and calibration method

A calibration device and calibration method technology, applied in the field of sensors, can solve the problems of wasting test resources, sensor channel drift, sensor measurement inaccuracy, etc., and achieve reliable calibration results

Inactive Publication Date: 2018-06-29
WEICHAI POWER CO LTD
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Problems solved by technology

The limitation of the conventional method is that the calibration values ​​of several selected single points cannot be calculated to obtain the accuracy, repeatability, noise and other indicators of the sensor. After the calibration and correction are completed, there will still be problems such as sensor channel drift and large measurement fluctuations. A comprehensive analysis of the status of the sensor may even cause repeated measurements due to inaccurate sensor measurement and untimely replacement, which greatly wastes test resources

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  • Sensor calibration device and calibration method
  • Sensor calibration device and calibration method
  • Sensor calibration device and calibration method

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Embodiment Construction

[0035] Exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. Although exemplary embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure may be embodied in various forms and should not be limited by the embodiments set forth herein. Rather, these embodiments are provided for more thorough understanding of the present disclosure and to fully convey the scope of the present disclosure to those skilled in the art.

[0036] figure 1 It is a structural schematic diagram of an embodiment of the present invention. figure 2 for use figure 1 The flow chart of the method for sensor calibration in the embodiment. image 3 for use figure 1 The schematic diagram of calibration point recording in the embodiment. Such as figure 1 As shown, the sensor calibration device in this embodiment includes a calibration software 10 , a measuring instrument 20...

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Abstract

The invention belongs to the technical field of sensors, and specifically relates to a sensor calibration device and calibration method. The sensor calibration device comprises calibration software, ametrical instrument and a data collection passage, wherein the metrical instrument and the data collection passage can be in communication connection with the calibration software respectively; the calibration software can collect data messages of the metrical instrument and the data collection passage simultaneously; the metrical instrument can provide constant temperature of pressure for a sensor to be calibrated so as to be collected by the sensor; and data collected by the sensor can be sent to the calibration software for calibration after processing of the data collection passage. By using the sensor calibration device and calibration method, data in the metrical instrument and the data collection passage can be collected simultaneously, veracity index, repeatability index, noise index and linear index of the sensor are calculated effectively, and the correction of the sensor is completed.

Description

technical field [0001] The invention belongs to the technical field of sensors, and in particular relates to a sensor calibration device and a calibration method. Background technique [0002] At present, in the conventional calibration method of temperature or pressure sensor, a single-point comparison between a standard measuring instrument and a sensor channel is used to obtain a linear correction formula. The limitation of the conventional method is that the calibration values ​​of several selected single points cannot be calculated to obtain the accuracy, repeatability, noise and other indicators of the sensor. After the calibration and correction are completed, there will still be problems such as sensor channel drift and large measurement fluctuations. A comprehensive analysis of the status of the sensor may even cause repeated measurements due to inaccurate sensor measurement and untimely replacement, which greatly wastes test resources. Contents of the invention ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01K15/00G01L25/00G01L27/00
CPCG01K15/005G01L25/00G01L27/005
Inventor 段晓成姜化印宋海涛李晶肖志刚
Owner WEICHAI POWER CO LTD
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