Hydrogen measuring instrument detection device and detection method thereof

Abstract

The invention discloses a hydrogen measuring instrument detection device and a detection method thereof. The hydrogen measuring instrument detection device comprises a gas processing module, a hydrogen output module, a mixing cavity, a standard detection instrument, a detection output module and a control device, wherein the gas processing module is used for dehydrogenizing inhaled air and inputting the dehydrogenized air into the mixing cavity as a diluent gas; the hydrogen output module is used for inputting a hydrogen gas with standard concentration into the mixing cavity; the mixing cavityis used for fully mixing the input diluent gas and the hydrogen gas; the standard detection instrument is used for measuring concentration of the hydrogen gas in the mixing cavity in real time; the detection output module is used for conveying the mixed gas in the mixing cavity to a detected hydrogen measuring instrument; and the control device is used for controlling the hydrogen measuring instrument detection device to operate and receiving data output by the standard detection instrument and the detected hydrogen measuring instrument. According to the hydrogen measuring instrument detection device and the detection method thereof, the hydrogen gases with different concentrations can be provided for the hydrogen measuring instrument for detection, so that multipoint concentration automatic detection of the hydrogen measuring instrument within a detection range is realized, the performance of the hydrogen measuring instrument is conveniently and precisely detected, operation errors during manual collection of a standard gas are reduced, and the detection cost is reduced.

Description

technical field [0001] The invention relates to the technical field of quality verification of analytical instruments, in particular to a detection device for a hydrogen detector and a detection method thereof. Background technique [0002] In recent years, with the advancement of science and technology in our country, the rapid development of analysis and detection technology has been greatly promoted, and many detection and analysis instruments with new principles and methods have also emerged. In the face of a large number of analytical and testing instruments, how to choose an analytical instrument or evaluate the performance of an instrument needs to be judged by the basic performance of the testing and analytical instrument, including detection limit, sensitivity, accuracy, precision and other indicators. Foreign countries attach great importance to the standardization of analytical instrument performance testing, but our country has a big gap in this regard, especiall...

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Problems solved by technology

However, the detection range of hydrogen detectors is generally relatively large, and the overall performance of the instrument cannot be accurately judged by only measuring a few single-point concentrations. The demand for standard hydrogen gas of each concentration is also relatively large, resulting in high costs for testing instruments. , the detection process is long, and the simultaneous comparison test cannot be completed for different types of hydrogen detectors due to different measurement methods or measurement principles. In the long-term continuous test, it is necessary to manually replace the gas cylinder or sampling air bag, which will also cause operational errors.

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