Wide band environment air infrared telemetering and monitoring system and method

An environmental gas and infrared telemetry technology, applied in the field of spectroscopy, can solve problems such as unfavorable quantitative test calibration, multiple investment in instruments and difficulty in configuration, and limitation of instrument response bands, so as to achieve improved instrument performance, high luminous flux, and improved detection bands. Effect

Pending Publication Date: 2019-01-04
KUNMING INST OF PHYSICS
View PDF5 Cites 6 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, for the industrial monitoring of common industrial toxic and harmful gases such as hydrogen sulfide, sulfur dioxide, methane, propane, etc., although the remote measurement distance requirements are not high, its main spectral features are in the mid-wave infrared window; There are some features at the end, close to the absorption peaks of water vapor and carbon dioxide, the instrument response band is limited
The general solution is to add a mid-wave infrared spectral telemetry device to work in parallel, which causes multiple investments in the instrument and difficulties in configuration
At the same time, it is not conducive to the calibration of quantitative tests

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Wide band environment air infrared telemetering and monitoring system and method
  • Wide band environment air infrared telemetering and monitoring system and method
  • Wide band environment air infrared telemetering and monitoring system and method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0052] In this embodiment, ammonia gas is taken as an example. The infrared radiation emitted by ammonia gas is collected by the receiving telescope, enters the interferometer, and is scanned by the moving mirror of the interferometer to form an optical path difference to generate interference. After photoelectric conversion by the detector, the A / D The converter converts the electrical signal into a digital signal, and then undergoes Fourier transform (FFT transform) to obtain a spectral signal. The spectrogram is changed, and after being identified by the discriminator, it is uploaded to the computer, and after the on-site spectrogram is identified, an alarm is issued. Such as figure 2 Shown is the measured spectrum of ammonia gas, Figure 13 It is the interface diagram of the host computer for the actual measurement of ammonia in this embodiment.

Embodiment 2

[0054] This embodiment takes hydrogen sulfide gas as an example. The infrared radiation emitted by hydrogen sulfide gas is collected by the receiving telescope, enters the interferometer, and is scanned by the moving mirror of the interferometer to form an optical path difference to generate interference. After photoelectric conversion by the detector, the A / The D converter converts the electrical signal into a digital signal, and then undergoes Fourier transform (FFT transform) to obtain a spectral signal. The spectrogram is changed, and after being identified by the discriminator, it is uploaded to the computer, and after the on-site spectrogram is identified, an alarm is issued. Such as image 3 The measured spectrum of hydrogen sulfide is shown.

Embodiment 3

[0056] Figure 4 Shown is the measured spectrum of the experiment using methane as an example.

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

No PUM Login to view more

Abstract

The invention provides a wide band environment air infrared telemetering and monitoring system and method, wherein the system is mainly composed of an infrared monitor, a cloud head and an upper computer; the infrared monitor comprises an infrared window, a visible light window, a blackbody radiation calibration device, a front telescope, an interferometer, an infrared detector, a signal control and communication interface, an intelligent discriminator and a CCD camera. According to the invention, the system has the advantages of high spectral resolution and high luminous flux, can achieve theidentification and alarm of multi-component air, can fully utilize the built-in blackbody to carry out high-precision calibration, and can achieve on-line spectral calibration and radiation calibration requirements, the application advantage is obvious, particularly, a high level can be achieved in the aspect of spectral signal-to-noise ratio.

Description

technical field [0001] The invention belongs to the field of spectrum technology, and relates to a wide-band ambient gas infrared telemetry monitoring system and method, in particular to a real-time infrared spectrum technology applied to time modulation interference of ambient gas detection. Background technique [0002] In recent years, with the vigorous development of economic activities and the rapid development of industrial enterprises, the situation of environmental protection in my country has become more and more severe, and sudden environmental pollution accidents have also shown a high incidence trend. Major chemical accidents occur frequently, and the harmful consequences are becoming more and more serious. Major public safety incidents caused by the deterioration of the natural environment, as well as chemical hazards derived from natural disasters such as earthquakes and floods, occur from time to time. According to the statistics of the State Administration of...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
Patent Type & Authority Applications(China)
IPC IPC(8): G01N21/3504G01J5/00
CPCG01J5/0014G01N21/3504
Inventor 郑为建余春超袁小春杨智雄严敏雷正刚王红伟张培仲张卫锋曾怡郑传武罗敏
Owner KUNMING INST OF PHYSICS
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products