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Method for correcting measurement value of hydrogen sensor

A sensor and hydrogen technology, which is applied in the structural details of gas analyzers, measuring devices, standard gas analyzers, etc., can solve the problem of inaccurate hydrogen sensor measurement values

Inactive Publication Date: 2020-04-10
CHINA INSTITUTE OF ATOMIC ENERGY
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0007] The present invention provides a method for correcting the measured value of the hydrogen sensor, which is used to solve the problem of inaccurate measured values ​​of the hydrogen sensor under different pressure environments

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  • Method for correcting measurement value of hydrogen sensor
  • Method for correcting measurement value of hydrogen sensor

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Embodiment Construction

[0033] The present invention will be further described in detail below in conjunction with the accompanying drawings, wherein preferred embodiments of the present invention are shown, it should be understood that those skilled in the art can modify the content of the invention described herein without affecting the realization of the beneficial effects of the present invention. Therefore, the following description should be understood as the broad knowledge of those skilled in the art, and not as a limitation of the present invention.

[0034] Embodiments of the present invention provide a method for correcting the measured value of the hydrogen concentration sensor, such as figure 1 As shown, in step S101, the pressure P of the current environment of the gas to be measured is acquired x . Specifically, the pressure measurement tool can be used to directly read the pressure value of the current environment where the gas to be measured is located. Step S102, acquiring the con...

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Abstract

The embodiment of the invention provides a method for correcting a measurement value of a hydrogen sensor. An obtained concentration measurement value of to-be-measured hydrogen is obtained by fittinga linear relation function of a concentration measurement value and a concentration true value under the simulation environment pressure in combination with a relation function of the pressure of sample gas and a concentration measurement value as well as the obtained pressure value of the to-be-measured hydrogen to obtain a concentration true value of the to-be-measured hydrogen. According to the invention, the concentration measurement value can be effectively corrected by solving a measurement error problem caused by the pressure of the current environment of the hydrogen to be measured, so that the measurement accuracy of the sensor is improved.

Description

technical field [0001] Embodiments of the present invention relate to the technical field of gas sensors, and in particular to a method for correcting a measured value of a hydrogen sensor. Background technique [0002] Hydrogen has the advantages of high combustion efficiency and no pollution. As a new energy source, it is widely used in the power field. In addition, hydrogen is also of great application value as a reducing gas in chemical, electronic, and military fields. However, hydrogen is a flammable and explosive gas. Under normal temperature and pressure conditions, when its concentration in the air reaches 4.0% to 75.6% or in an oxygen environment reaches 4.46% to 94%, the mixed gas is easy to occur. Explosion accident. Due to the colorless and odorless physical properties of hydrogen, it is difficult to detect it in the process of production, storage, transportation and use, so fast and sensitive hydrogen sensors become very important in the industrial application...

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Application Information

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IPC IPC(8): G01N33/00G01N27/12G01N27/22
CPCG01N27/12G01N27/22G01N33/0006G01N33/005G01N33/0062
Inventor 李乐斌任英武超吕卫星
Owner CHINA INSTITUTE OF ATOMIC ENERGY