TW200622212A - Laser gas detection system - Google Patents

Laser gas detection system

Info

Publication number
TW200622212A
TW200622212A TW093141084A TW93141084A TW200622212A TW 200622212 A TW200622212 A TW 200622212A TW 093141084 A TW093141084 A TW 093141084A TW 93141084 A TW93141084 A TW 93141084A TW 200622212 A TW200622212 A TW 200622212A
Authority
TW
Taiwan
Prior art keywords
spectrometer
light sensor
receiving
detecting area
signal
Prior art date
Application number
TW093141084A
Other languages
Chinese (zh)
Other versions
TWI245115B (en
Inventor
Hsiu-Che Wang
Original Assignee
Ind Tech Res Inst
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Ind Tech Res Inst filed Critical Ind Tech Res Inst
Priority to TW93141084A priority Critical patent/TWI245115B/en
Application granted granted Critical
Publication of TWI245115B publication Critical patent/TWI245115B/en
Publication of TW200622212A publication Critical patent/TW200622212A/en

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  • Investigating Or Analysing Materials By Optical Means (AREA)

Abstract

The present invention provides a laser gas detection system, which comprises: a diode laser for emitting laser beam; a fiber optic coupler for separating the beam emitted by the diode laser into the first beam and the second beam; a first spectrometer located at the rear of the detecting area; a pair of first and second collimating lens configured at the two opposite ends of the detecting area, in which the first collimating lens is used to collimate the first beam through the detecting area for being focused by the second collimating lens to enter the first spectrometer; a first light sensor, for receiving the signal from the first spectrometer; a second spectrometer for receiving the second beam; a second light sensor for receiving the signal from the second spectrometer; a light filter configured between the second spectrometer and the second light sensor for monitoring the wavelength variance scope of the diode laser; and a data processing device for receiving the signal from the first light sensor and the second light sensor, comparing the light energy difference, and also measuring the mixed gas temperature and densities of multiple gases in the detecting area.
TW93141084A 2004-12-29 2004-12-29 Laser gas detection system TWI245115B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
TW93141084A TWI245115B (en) 2004-12-29 2004-12-29 Laser gas detection system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
TW93141084A TWI245115B (en) 2004-12-29 2004-12-29 Laser gas detection system

Publications (2)

Publication Number Publication Date
TWI245115B TWI245115B (en) 2005-12-11
TW200622212A true TW200622212A (en) 2006-07-01

Family

ID=37190013

Family Applications (1)

Application Number Title Priority Date Filing Date
TW93141084A TWI245115B (en) 2004-12-29 2004-12-29 Laser gas detection system

Country Status (1)

Country Link
TW (1) TWI245115B (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
TWI712781B (en) * 2019-12-06 2020-12-11 財團法人工業技術研究院 Gas absorption spectrum measuring system and measuring method thereof

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
TWI712781B (en) * 2019-12-06 2020-12-11 財團法人工業技術研究院 Gas absorption spectrum measuring system and measuring method thereof

Also Published As

Publication number Publication date
TWI245115B (en) 2005-12-11

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