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A remote adjustable long optical path toxic and harmful gas monitor and its adjustment method

A technology for remote adjustment and harmful gas, applied in the direction of color/spectral characteristic measurement, instruments, measuring devices, etc., can solve the problem of difficult remote adjustment, etc., and achieve the effect of high data reliability, convenient operation and high precision

Active Publication Date: 2019-01-15
SUZHOU MICRONANO LASER PHOTON TECH CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although this instrument is very convenient for on-site adjustment, when it is remotely adjusted, since the intensity of the spectral signal received by the light receiving unit quickly decays to zero within a small range, it is difficult to achieve remote adjustment only by adjusting the intensity of the spectral signal

Method used

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  • A remote adjustable long optical path toxic and harmful gas monitor and its adjustment method

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Embodiment 1

[0022] Embodiment one: see attached figure 1 As shown, a remote adjustable long optical path toxic and harmful gas monitor is divided into an instrument main body (1-13) and a corner reflector 14.

[0023] The main body of the instrument can be divided into an optical part and a mechanical part. The optical part consists of optical fiber 1, large concave reflector 2, visible camera 3, small concave reflector 4, shading plate 5, beam shaping plate 6, xenon lamp 7, reflector 8 and quartz window 9; the mechanical part consists of spectrometer 10, step It consists of a motor controller 11, a xenon lamp power supply 12 and a two-dimensional adjustment frame 13. The ultraviolet-visible light emitted by the xenon lamp 7 light source is shaped by the beam shaping plate 6 and then reflected by the reflector 8 to the large concave reflector 2 for emission. The concave reflector 2 converges to the small concave reflector 3 and then converges to the optical fiber 1, and the optical fibe...

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Abstract

The invention discloses a remotely-adjustable long-optical-path toxic and hazardous gas monitoring device. According to an adjusting method of the remotely-adjustable long-optical-path toxic and hazardous gas monitoring device, the upper part of the remotely-adjustable long-optical-path toxic and hazardous gas monitoring device is provided with a visible camera, remote adjusting can be completed in a large range via a two-dimensional adjusting rack. Operation of the remotely-adjustable long-optical-path toxic and hazardous gas monitoring device is simple; precision is high; the remotely-adjustable long-optical-path toxic and hazardous gas monitoring device can be used for monitoring a plurality of atmosphere pollution gases at the same time; data reliability is high; remote adjusting is realized; and maintenance and operation cost is reduced greatly.

Description

technical field [0001] The invention relates to an optical instrument for measuring atmospheric gaseous pollutants based on differential absorption spectrum technology and an adjustment method thereof, belonging to the field of atmospheric monitoring. Background technique [0002] With the rapid development of industry, urban air pollution is increasing day by day, seriously affecting people's daily life and physical and mental health. Continuous real-time monitoring of air pollutants has gradually become an important topic. In 1979, Platt et al first proposed the differential absorption spectroscopy (DOAS) method for simultaneous real-time online monitoring of multiple air pollution gases (PlattU, Pemer D. "Simultaneous measurements of atmospheric CH 2 O, O 3 , NO 2 by differential optical absorption". Geophys Res, 1979, 84: 6329~6335). The DOAS method emits the ultraviolet-visible light emitted by the xenon lamp into the atmospheric environment, and is received by the r...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01N21/01G01N21/31
Inventor 宋瑛林储祥勇杨勇刘小波
Owner SUZHOU MICRONANO LASER PHOTON TECH CO LTD
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