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Performance evaluation device and method for photoacoustic spectrometry multi-component gas analysis instrument

A technology of photoacoustic spectroscopy and gas analysis, which is applied in the field of high-voltage technology and gas detection, can solve problems such as difficult photoacoustic spectroscopy multi-component gas analysis instrument technical performance evaluation, achieve reliable performance evaluation, reduce damage and loss Effect

Active Publication Date: 2019-11-12
CHINA ELECTRIC POWER RES INST +2
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Problems solved by technology

[0003]In view of this, the present invention proposes a performance evaluation device and method of a photoacoustic spectrum multi-component gas analysis instrument, aiming at solving Accurate evaluation of the technical performance of acoustic spectroscopic multi-component gas analysis instruments

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  • Performance evaluation device and method for photoacoustic spectrometry multi-component gas analysis instrument
  • Performance evaluation device and method for photoacoustic spectrometry multi-component gas analysis instrument

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Embodiment Construction

[0023] 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. It should be noted that, in the case of no conflict, the embodiments of the present invention and the features in the embodiments can be combined with each other. The present invention will be described in detail below with reference to the accompanying drawings and examples.

[0024] Device example:

[0025] refer to figure 1 , The performance evaluation device of the photoacoustic spectrum multi-component gas analysis instrument ...

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Abstract

The invention provides a performance evaluation device and method for a photoacoustic spectrometry multi-component gas analysis instrument. The device comprises a sound insulation box, a high-purity nitrogen conveying system, a to-be-tested gas conveying system, a salt solution container and a gas mixing chamber, wherein an environmental noise simulation device and a to-be-evaluated photoacousticspectrometer are arranged in the sound insulation box; and a gas inlet of the to-be-evaluated photoacoustic spectrometer communicates with an outlet of the gas mixing chamber to detect the concentration of gas entering the gas mixing chamber. According to the device, the influence of noise on a measurement result in a real working environment is simulated through the environmental noise simulationdevice, so that the capability of the photoacoustic spectrometer in resisting the environmental noise interference can be evaluated; and meanwhile, test gases with different types and concentrationscan be replaced, the test of cross sensitivity and detection limits of the gases is realized by combining with a specific signal processing method, and accurate, efficient and reliable performance evaluation is carried out on key technical indexes of the to-be-evaluated photoacoustic spectrometer.

Description

technical field [0001] The invention relates to the fields of high-voltage technology and gas detection technology, in particular to a performance evaluation device and method of a photoacoustic spectrum multi-component gas analysis instrument. Background technique [0002] The development of the State Grid regards the safety of the large power grid and the construction of an efficient, safe and strong smart grid as important construction goals. With the rapid development of the UHV interconnected grid, new substations and newly invested main substations are growing at a rate of 7%-10% every year. Driven by the rapid development of the national power system and the demand for transformer on-line monitoring equipment, the new online monitoring technology of dissolved gas analysis (DGA) in transformer oil has developed rapidly. It has become a general consensus in the power system. The DGA method of photoacoustic spectroscopy has been more and more widely used in the field o...

Claims

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Application Information

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IPC IPC(8): G01N21/17
CPCG01N21/1702
Inventor 袁帅王广真陈珂毕建刚于清旭阎春雨常文治许渊付德慧杜非
Owner CHINA ELECTRIC POWER RES INST
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