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Gas sensing and UV light detection integrated system

A technology of gas sensing and integrated systems, applied in the field of integrated detection, to reduce costs, save costs and improve performance

Active Publication Date: 2018-02-23
SOUTHWEST UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] However, at present, universities and scientific research institutions in Chongqing have not provided integrated equipment for undergraduates to conduct sensor performance testing experiments in Chongqing's special geographical environment.

Method used

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  • Gas sensing and UV light detection integrated system
  • Gas sensing and UV light detection integrated system
  • Gas sensing and UV light detection integrated system

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0081] An integrated system of gas sensing and UV light detection, mainly including the following modules: vacuum chamber 1, temperature measurement and control system 2, electrode test system 3, gas control system 4, UV light control system 5, humidity control system 6 and semiconductor gas sensor7.

[0082] Preferably, the gas sensing and UV light detection integrated system mainly uses wide bandgap materials. The wide band gap material mainly includes BN, GaN and ZnO.

[0083] Wide bandgap material is a new type of material, which has the characteristics of large bandgap width, high electron drift saturation velocity, small dielectric constant, and good electrical conductivity. Utilizing the unique bandgap width of wide bandgap materials, blue light, green light, ultraviolet light devices and photodetection devices can be fabricated. Wide bandgap materials can adapt to harsh living and working environments.

[0084] The vacuum chamber 1 mainly includes a chamber body 101...

Embodiment 2

[0131] An experiment using the system described in any one of claims 1 to 11 to detect UV light and gas sensing characteristics, mainly comprising the following steps:

[0132] 1) Assemble and debug the integrated system of gas sensing and UV light detection.

[0133] Further, the debugging of the integrated system of gas sensing and UV light detection mainly includes: detecting whether the long-wave ultraviolet tube 501, the medium-wave ultraviolet tube 502, and the short-wave ultraviolet tube 503 can emit light normally; Whether the gas function is normal, whether the airway 402 is unblocked, etc.

[0134] 2) Turn on the switch I, turn off the switch II and the switch III, so that the inside of the cavity 101 is filled with UV light in the 315-390nm band.

[0135] 3) Fill the gas in the gas bottle 406 into the cavity 101 .

[0136] Further, the gas in the gas bottle 406 can be CH 4 or H 2 . During the experiment, a plurality of gas bottles 406 were prepared, and the gas...

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Abstract

The invention discloses a gas sensing and UV light detection integrated system, which is characterized by mainly comprising the following modules: a vacuum chamber, a temperature measurement and control system, an electrode test system, a gas control system, a UV light control system, a humidity control system and a semiconductor gas sensor. Multiple environmental variables can be provided, studyon the sensing features of the sensor in a complicated environment becomes possible, and the performance of the sensor is improved more comprehensively. Gas sensing feature test and UV light detectortest are integrated as a whole, the cost is saved, and the practicality is strong. Especially in a high humidity environment, college undergraduate students can use the system in the invention to testthe gas, the UV light and the humidity sensing features.

Description

technical field [0001] The invention relates to the field of integrated detection, in particular to an integrated system for gas sensing and UV light detection. Background technique [0002] In recent years, major media have frequently reported sudden poison gas leakage incidents. Therefore, people pay more and more attention to sudden poisonous gas leakage. The aggravation of air pollution, the frequent occurrence of safety accidents, the deterioration of food quality and other factors are all closely related to various poisonous gases. [0003] UV light is ultraviolet light. The wavelength range of ultraviolet light is 100-400nm. It is an electromagnetic wave between X-rays and visible light. However, ultraviolet rays can also cause damage to human cells while sterilizing. The irradiation of strong ultraviolet rays can even lead to necrosis of the skin epidermis, increase of cataract patients, immune system destruction, skin cancer and so on. [0004] At the same time,...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01D21/02G01N27/04G01N33/00
Inventor 彭小燕王培超段书凯王丽丹
Owner SOUTHWEST UNIV