CN-122017152-A - Test system and method for hydrogen sulfide sensor

CN122017152ACN 122017152 ACN122017152 ACN 122017152ACN-122017152-A

Abstract

The invention provides a test system and a test method of a hydrogen sulfide sensor, and belongs to the technical field of measurement and test. The method comprises a sensor type identification stage, a test mode determination stage, a test execution stage, a test result analysis stage and a man-machine interaction feedback stage, wherein the type of the target sensor is determined based on the measurement principle and the material attribute of the target sensor, the test mode determination stage is used for determining a test mode of the target sensor based on the identified type of the target sensor, the test mode at least comprises a reference test mode and a compensation test mode, the test execution stage is used for executing performance test on the target sensor based on the determined test mode, the test result analysis stage is used for analyzing the performance of the target sensor based on the test result, the man-machine interaction feedback stage is used for receiving man-machine interaction feedback data, determining whether the test mode is switched or not based on the feedback data, if the test mode is switched back to the test mode determination stage, and otherwise, the test is ended. The technical scheme of the invention is suitable for performance test of various hydrogen sulfide sensors, and can reduce test errors.

Inventors

CHEN CHANG
XU DULIANG
LIN JIANHAO
ZHANG GANGYI
YANG SHIPENG

Assignees

深圳市胜思达科技有限公司

Dates

Publication Date: 20260512
Application Date: 20260318

Claims (10)

1. A method of testing a hydrogen sulfide sensor, the method comprising: a sensor type identification stage, namely determining the type of the target sensor based on the measurement principle and the material property of the target sensor; a test mode determining stage for determining a test mode of the target sensor based on the target sensor type identified in the previous stage, wherein the test mode at least comprises a reference test mode and a compensation test mode; A test execution stage of executing a performance test on the target sensor based on the determined test pattern; analyzing the performance of the target sensor based on the test result; a human-computer interaction feedback stage, namely receiving human-computer interaction feedback data, determining whether to switch the test mode based on the feedback data, if so, returning to the test mode determining stage to reselect the test mode, otherwise, ending the test; in the test mode determining stage, each type of target sensor corresponds to at least two different test modes, and the different test modes comprise different reference test modes or compensation test modes.
2. A method for testing a hydrogen sulfide sensor as claimed in claim 1, wherein, The test mode comprises a reference test mode which is selected from one or a combination of factory calibration information call, standard gas verification, catalyst sensitivity calibration, limiting current calibration, identification probe calibration and photocurrent reference calibration, and the test mode comprises a compensation test mode which is selected from one or a combination of temperature and humidity correlation compensation, sensitive film adsorption characteristic compensation, linear fitting compensation and signal quenching compensation.
3. A method for testing a hydrogen sulfide sensor as claimed in claim 2, The gas used for standard gas verification is hydrogen sulfide standard gas, and the identification probe is calibrated by adopting a metal ion probe.
4. A method for testing a hydrogen sulfide sensor as claimed in claim 1, wherein, The test result comprises a performance curve and key indexes of the target sensor before and after the compensation test is executed, wherein the key indexes comprise response time, linearity, sensitivity and anti-interference capability.
5. A method for testing a hydrogen sulfide sensor as claimed in claim 1, wherein, The test result analysis stage further comprises a result visualization sub-stage, wherein the sub-stage performs visual display on at least two performance curves corresponding to the test result; receiving human-computer interaction feedback data received in the human-computer interaction feedback stage, wherein the human-computer interaction feedback data comprises comparison operation of a tester on the at least two performance curves, and the comparison operation comprises translation, amplification, shrinkage and rotation; And when at least two performance curves after the comparison operation is executed do not meet preset conditions, determining to switch the test mode.
6. A method for testing a hydrogen sulfide sensor as claimed in claim 1, wherein, And collecting core performance data of the target sensor in the test execution stage, wherein the core performance data comprises a zero point signal, a response signal under target concentration and an output signal under environmental influence.
7. A hydrogen sulfide sensor testing system, the system comprising: a sensor type identification unit for determining the type of the target sensor based on the measurement principle and the material property of the target sensor; The test mode determining unit is used for determining a test mode of the target sensor based on the target sensor type identified by the sensor type identifying unit, wherein the test mode at least comprises a reference test mode and a compensation test mode; A test execution unit that executes a performance test on the target sensor based on the determined test pattern; the test result analysis unit is used for analyzing the performance of the target sensor based on the test result output by the visual interface, wherein the test result comprises a performance curve and key indexes of the target sensor before and after the compensation test is executed, and the key indexes comprise response time, linearity, sensitivity and anti-interference capability; the human-computer interaction feedback unit is used for receiving human-computer interaction feedback data based on the visual interface, determining whether to switch the test mode or not based on the feedback data, returning to the test mode determining unit to reselect the test mode if the test mode is switched to the test mode, and ending the test if the test mode is not switched to the test mode; in the test mode determining stage, each type of target sensor corresponds to at least two different test modes, and the different test modes comprise different reference test modes or compensation test modes.
8. The hydrogen sulfide sensor testing system of claim 7, wherein the human-computer interaction feedback data received by the human-computer interaction feedback unit comprises a comparison operation of at least two performance curves by a tester, wherein the comparison operation comprises translation, amplification, contraction and rotation; and when at least two performance curves after the comparison operation is executed meet preset conditions, determining that the target sensor passes the performance test.
9. A hydrogen sulfide sensor testing system as in claim 7, The test result output based on the visual interface comprises a performance curve and key indexes of the target sensor before and after the compensation test is executed, wherein the key indexes comprise response time, linearity, sensitivity and anti-interference capability.
10. A hydrogen sulfide sensor testing system as in claim 7, The target sensor to be tested at least comprises a fuel cell type which adopts a micro fuel cell as a principle and a true solid electrolyte, an impedance type which adopts a metal oxide sensitive film as a principle and a constant potential electrolysis as a principle, an electrochemical type which adopts a bimetallic catalyst, and a photoelectrochemical type which adopts an organic-inorganic composite heterojunction as a principle.

Description

Test system and method for hydrogen sulfide sensor Technical Field The invention belongs to the technical field of measurement and test, relates to testing or analyzing materials by means of measuring chemical or physical specificity of the materials, and particularly relates to a testing system and method of a hydrogen sulfide sensor. Background Hydrogen sulfide is widely applied to the chemical production processes of papermaking, oil refining, steel and the like, and is widely applied to the environments of marsh gas, sewage, petroleum, mines, natural gas fields and the like. However, hydrogen sulfide is a volatile highly toxic gas, has unstable performance, can form an explosive mixture when mixed with air, can cause combustion explosion when meeting open fire or high heat energy, has great potential safety hazard in the application process, and has to be detected and monitored for concentration. Known hydrogen sulfide gas sensors are largely classified into semiconductor oxide-based conductivity gas sensors and electrochemical sensors. Hydrogen sulfide sensors are largely classified into high-temperature solid electrolyte electrochemical sensors, solid polymer electrolyte electrochemical sensors, liquid electrolyte electrochemical sensors, gel electrolyte electrochemical sensors, and the like, according to the type of electrolyte used for the sensor. In practical application, the hydrogen sulfide gas sensor is found to often face the problems of poor selectivity, large influence of working temperature and environmental humidity and the like in the practical working process, and part of on-site environment can have low-concentration hydrogen sulfide gas for a long time to cause gradual reduction of the test precision of the sensor, and the deviation of the detection result is large, so that the use effect of the sensor is influenced. Therefore, it is very necessary to perform performance test and calibration on the hydrogen sulfide sensor periodically, and the type and the working principle of the hydrogen sulfide sensor are different, so that the performance test and calibration methods are also different. The related art has not reported performance testing schemes specific to hydrogen sulfide sensors, as retrieved. Similar technical schemes include a comprehensive test method of a nitrogen-oxygen sensor, which is proposed by Chinese patent application CN202411216483.9, a comprehensive test instrument of a gas sensor, which is proposed by CN201410634410.1, and the like, and the method cannot be directly applied to a hydrogen sulfide sensor, and cannot be applied to performance tests of various types of hydrogen sulfide sensors. Disclosure of Invention Aiming at the technical problems, the invention provides a test system and a test method of a hydrogen sulfide sensor. In a first aspect of the present invention, a method for testing a hydrogen sulfide sensor is presented, the method comprising: a sensor type identification stage, namely determining the type of the target sensor based on the measurement principle and the material property of the target sensor; a test mode determining stage for determining a test mode of the target sensor based on the target sensor type identified in the previous stage, wherein the test mode at least comprises a reference test mode and a compensation test mode; A test execution stage of executing a performance test on the target sensor based on the determined test pattern; analyzing the performance of the target sensor based on the test result; a human-computer interaction feedback stage, namely receiving human-computer interaction feedback data, determining whether to switch the test mode based on the feedback data, if so, returning to the test mode determining stage to reselect the test mode, otherwise, ending the test; in the test mode determining stage, each type of target sensor corresponds to at least two different test modes, and the different test modes comprise different reference test modes or compensation test modes. In the technical scheme, the target sensor to be tested at least comprises a fuel cell type which adopts a micro fuel cell as a principle and a true solid electrolyte, a semiconductor resistance sensing as a principle and an impedance type which adopts a metal oxide sensitive film, an electrochemical type which adopts a constant potential electrolysis as a principle and a bimetallic catalyst, and a photoelectrochemical type which adopts an organic-inorganic composite heterojunction as a principle. The test mode comprises a reference test mode which is selected from one or any combination of factory calibration information call, standard gas verification, catalyst sensitivity calibration, limiting current calibration, identification probe calibration and photocurrent reference calibration, and the test mode comprises a compensation test mode which is selected from one or any combination of temperature and humidity correlation compensation, sensitiv