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Spectral analysis type high-precision on-line detector for gas and liquid detection

A spectrum analysis and detector technology, applied in the measurement of color/spectral characteristics, etc., can solve the problems of cumbersome operation process, poor detection stability, low detection accuracy, etc., and achieve the effect of simple operation process, short detection time, and high detection accuracy.

Inactive Publication Date: 2014-09-24
刘颖东 +1
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  • Abstract
  • Description
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  • Application Information

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Problems solved by technology

[0050] In the process of realizing the present invention, the inventor found that there are at least defects in the prior art such as cumbersome operation process, poor detection stability, long detection time and low detection accuracy.

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  • Spectral analysis type high-precision on-line detector for gas and liquid detection
  • Spectral analysis type high-precision on-line detector for gas and liquid detection
  • Spectral analysis type high-precision on-line detector for gas and liquid detection

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Embodiment Construction

[0096] The preferred embodiments of the present invention will be described below in conjunction with the accompanying drawings. It should be understood that the preferred embodiments described here are only used to illustrate and explain the present invention, and are not intended to limit the present invention.

[0097] In view of the deficiencies in the existing technology, we independently develop testing equipment. On the basis of investigating the detection methods of related products on the market, we have determined that the modulation spectrum analysis method is used as the technical route for the development of detection equipment, and the spectral absorption fiber optic gas probe is used as the sensor (self-developed).

[0098] Spectral absorption optical fiber gas sensing technology was born out of laser spectral analysis technology, combined with modern optical fiber technology, the laser spectral analysis technology that was mainly used in laboratory gas analysis ...

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Abstract

The invention discloses a spectral analysis type high-precision on-line detector for gas and liquid detection. The spectral analysis type high-precision on-line detector comprises a detection sensor probe, a detector host, and a laser device, a circuit board and a power supply battery which are mounted in a detector host shell, and a display screen, an alarm device and a communication interface which are arranged outside the shell. By the adoption of a light intensity modulation technology, and due to concentration calculation on a modulation spectrum subjected to wavelet analysis, the spectral analysis type high-precision on-line detector for gas and liquid detection has the characteristics of high detection sensitivity, high detection stability, short detection time, high detection precision and the like. According to the on-line detector, an optical fiber is connected with the detection sensor probe, so that the distance can be 4KM; the detector can be used in a fixed or portable state; when the detector is applied to gas detection, (a single or multiple serial connected) handheld, open and fixed gas probes can be adopted.

Description

technical field [0001] The invention relates to the technical field of flammable gas detection, in particular to a spectral analysis type high-precision online detector that can be used for gas and liquid detection. Background technique [0002] We are often exposed to fuel gas at work, which is flammable, explosive, soluble in water, volatile, highly toxic, carcinogenic, easy to absorb through the skin, and has great damage to the liver. Such as: Unsymmetrical dimethylhydrazine, which is a strong reducing agent, will immediately catch fire or even explode when encountering oxidants such as dinitrogen tetroxide. [0003] Commonly used detection methods include titration, electrochemical method, chemiluminescence, colorimetry, chromatography, etc. The national standard stipulates that the gas adopts solid adsorption method, but the preparation of solid adsorbent and the adsorption and desorption process are complicated and time-consuming. , low sensitivity and accuracy, not ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N21/39
Inventor 刘颖东樊忠泽
Owner 刘颖东
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