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Electrochemical gas sensor and its calibration method, air conditioner

A technology of gas sensor and calibration method, which is applied in the field of sensing to achieve the effect of reducing influence, correcting the drift of zero point, and simplifying the calibration process

Active Publication Date: 2020-03-06
GD MIDEA AIR-CONDITIONING EQUIP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The main purpose of the present invention is to provide a calibration method for electrochemical gas sensors, aiming at solving the technical problem of zero point drift of the above electrochemical gas sensors and improving the detection accuracy of electrochemical gas sensors

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  • Electrochemical gas sensor and its calibration method, air conditioner
  • Electrochemical gas sensor and its calibration method, air conditioner
  • Electrochemical gas sensor and its calibration method, air conditioner

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Embodiment Construction

[0050] It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

[0051] The main solution of the embodiment of the present invention is: during the operation of the electrochemical gas sensor, according to the number of abnormalities when the gas concentration detection value is less than the gas concentration reference value and the abnormal value when the gas concentration detection value is less than the gas concentration reference value. The gas concentration reference value is calibrated to calibrate the zero point of the electrochemical gas sensor, so as to solve the problem of the decrease of detection accuracy caused by the zero point drift.

[0052] In the first embodiment of the present invention, as figure 1 As shown, the electrochemical gas sensor calibration method includes the following steps:

[0053] S100. Obtain the gas concentration detection value of the electro...

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Abstract

The invention discloses a calibration method of an electrochemical gas sensor. The method comprises the following steps: S100, acquiring detected gas concentration values of the electrochemical gas sensor; S200, updating a reference gas concentration value according to the abnormal times when the detected gas concentration values are lower than the reference gas concentration value of the electrochemical gas sensor and abnormal values obtained when the detected gas concentration values are lower than the reference gas concentration value. The invention further discloses the electrochemical gas sensor and an air conditioner. The detection accuracy of the electrochemical gas sensor can be improved.

Description

technical field [0001] The invention relates to the field of sensor technology, in particular to an electrochemical gas sensor, a calibration method thereof, and an air conditioner. Background technique [0002] The electrochemical gas sensor is a sensor that estimates the concentration of the gas to be measured according to the change of the oxidation or reduction current generated at the electrode by the chemical reaction of the gas to be measured. During the operation of the electrochemical gas sensor, its performance will decay with the increase of time and detection amount, resulting in the phenomenon of zero drift. That is to say, due to changes in the properties of the electrochemical gas sensor, the gas concentration detection value corresponding to the actual gas concentration value of zero, that is, the gas concentration reference value, changes, which reduces the detection accuracy of the electrochemical gas sensor. Contents of the invention [0003] The main p...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01N27/416
CPCG01N27/4163
Inventor 周宏明刘超英
Owner GD MIDEA AIR-CONDITIONING EQUIP CO LTD