TWM476923U - High efficiency cavity for NDIR gas detector - Google Patents

High efficiency cavity for NDIR gas detector

Info

Publication number
TWM476923U
TWM476923U TW102204722U TW102204722U TWM476923U TW M476923 U TWM476923 U TW M476923U TW 102204722 U TW102204722 U TW 102204722U TW 102204722 U TW102204722 U TW 102204722U TW M476923 U TWM476923 U TW M476923U
Authority
TW
Taiwan
Prior art keywords
high efficiency
cavity
sensor
focal point
gas detector
Prior art date
Application number
TW102204722U
Other languages
Chinese (zh)
Inventor
Chih-Ming Hung
Yu-Chih Liang
Jin-Shown Shie
Chein-Hsun Wang
Original Assignee
Oriental System Technology Inc
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 Oriental System Technology Inc filed Critical Oriental System Technology Inc
Priority to TW102204722U priority Critical patent/TWM476923U/en
Publication of TWM476923U publication Critical patent/TWM476923U/en

Links

Abstract

By using gas absorption to optical path relationship, non-dispersive infra-red (NDIR) gas sensor needs one optical cavity for gas detection. The radiated output of MEMS (Micro Electro Mechanical Systems) IR emitter is much weaker than traditional IR lamp that needs a high efficiency infrared optical cavity to operate. An innovated high efficiency infrared cavity is proposed that uses bifocal property of elliptical shape with IR source in one focal point and IR sensor in another focal point. The design also fulfills the narrow incident angle beam requirement for the IR sensor.
TW102204722U 2013-03-15 2013-03-15 High efficiency cavity for NDIR gas detector TWM476923U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
TW102204722U TWM476923U (en) 2013-03-15 2013-03-15 High efficiency cavity for NDIR gas detector

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
TW102204722U TWM476923U (en) 2013-03-15 2013-03-15 High efficiency cavity for NDIR gas detector

Publications (1)

Publication Number Publication Date
TWM476923U true TWM476923U (en) 2014-04-21

Family

ID=60625643

Family Applications (1)

Application Number Title Priority Date Filing Date
TW102204722U TWM476923U (en) 2013-03-15 2013-03-15 High efficiency cavity for NDIR gas detector

Country Status (1)

Country Link
TW (1) TWM476923U (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107356546A (en) * 2016-05-10 2017-11-17 热映光电股份有限公司 Gas measurement device

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107356546A (en) * 2016-05-10 2017-11-17 热映光电股份有限公司 Gas measurement device

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Legal Events

Date Code Title Description
MM4K Annulment or lapse of a utility model due to non-payment of fees