SF6 gas spectral signal comprehensive analyzer
Pending Publication Date: 2022-03-15
HUANGHUAI UNIV +1
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Problems solved by technology
[0002] At present, the detection and analysis of SF6 gas spectral signal mainly adopts infrared absorption spectroscopy technology and ultraviolet absorption spectroscopy technology, combined with electrochemical sensor technology, to detect the content of trace CF4 gas components and other decomposition product components in SF6 gas. Spectrum technology may improve the sensitivity of electrochemical sensors to achieve the purpose of accurate detection of SF6 gas. However, the output signal of the electrochemical sensor itself needs to be further analyzed by frequency band spectrum technology during use. The frequency band spectrum itself will cause certain interference to the electrical signal. , which also becomes the limitation of accurate analysis of SF6 gas fraction
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[0011] Regarding the aforementioned and other technical contents, features and effects of the present invention, refer to the appended Figure 1 to Figure 2 It will be apparent from the detailed description of the embodiments. The structural contents mentioned in the following embodiments are all based on the accompanying drawings of the description.
[0012] In order to further improve the accuracy of the SF6 gas spectral signal comprehensive analyzer for SF6 gas analysis, the SF6 gas spectral signal comprehensive analyzer usually includes a gas acquisition module, a database, and a spectral analysis module. On the basis of this existing technology, a subtraction input circuit is designed. and a threshold detection circuit, the gas collection module uses an electrochemical sensor to collect the gas to be tested, and at the same time analyzes the SF6 gas in combination with the spectrum analysis module.
[0013] Described subtraction input circuit utilizes operational amplifi...
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The invention discloses an SF6 gas spectral signal comprehensive analyzer, which comprises a gas collection module, a database, a spectral analysis module, a subtraction input circuit and a threshold detection circuit, the gas collection module collects gas to be detected by using an electrochemical sensor, and analyzes SF6 gas in combination with the spectral analysis module; according to the subtraction input circuit, an operational amplifier AR4, a resistor R2 and a resistor R3 form a subtraction circuit to carry out subtraction processing on two input signals, meanwhile, a first threshold value signal and a second threshold value signal are set to detect the lowest range and the highest range of peak value signals output by the operational amplifier AR7, and the gas collection module outputs compensation signals of electric signals. Or the signal emitter E1 sends the signals to a spectral frequency adjusting module in the SF6 gas spectral signal comprehensive analyzer, the spectral frequency is reduced, and the spectral frequency and the spectral frequency electric signals reach the standard proportional relation, so that the interference of the spectral frequency on the electric signals output by the electrochemical sensor is reduced.
Description
technical field [0001] The invention relates to the technical field of gas spectrum signals, in particular to a comprehensive analyzer for SF6 gas spectrum signals. Background technique [0002] At present, the detection and analysis of SF6 gas spectral signal mainly adopts infrared absorption spectroscopy technology and ultraviolet absorption spectroscopy technology, combined with electrochemical sensor technology, to detect the content of trace CF4 gas components and other decomposition product components in SF6 gas. Spectrum technology may improve the sensitivity of electrochemical sensors to achieve the purpose of accurate detection of SF6 gas. However, the output signal of the electrochemical sensor itself needs to be further analyzed by frequency band spectrum technology during use. The frequency band spectrum itself will cause certain interference to the electrical signal. , which has also become the limitation of accurate analysis of SF6 gas. Contents of the invent...
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Login to View More IPC IPC(8): G01N21/25G01N27/26
CPCG01N21/25G01N27/26Y02A50/20
Inventor 郝华丽崔明齐连浩然康红涛
Owner HUANGHUAI UNIV