Gas monitor technology of electrical modulation non-dispersion infrared sensor

Yu Chen; Rongxing Guo

doi:10.1117/12.828772

20 May 2009 Gas monitor technology of electrical modulation non-dispersion infrared sensor

Yu Chen, Rongxing Guo

Proceedings Volume 7283, 4th International Symposium on Advanced Optical Manufacturing and Testing Technologies: Optical Test and Measurement Technology and Equipment; 72833E (2009) https://doi.org/10.1117/12.828772
Event: AOMATT 2008 - 4th International Symposium on Advanced Optical Manufacturing, 2008, Chengdu, Chengdu, China

Abstract

Gas concentration signal acquisition of electrical modulation Non-dispersed Infrared (NDIR) sensors has advantages of high measurement accuracy, adapting to wider concentration range, calibrating automatically and so on. Narrow-band interference filter to some kind of gas detection is fixed on the sensor. Gas concentration can be showed by detecting infrared ray's strength. Infrared source, gas room and infrared detector are set in one optical axis for better resolution of gas infrared absorption signal. Some gas concentration detection system can be designed by using NDIR sensor. The measurement accuracy of system is obviously improved by digital filtering, linear interpolation and temperature compensation, etc. Through some literature materials researching, we find NDIR sensing and detection linearity is better, and the detection error is higher, which can be applied in many kinds of gas monitoring instrument.

Citation Download Citation

Yu Chen and Rongxing Guo "Gas monitor technology of electrical modulation non-dispersion infrared sensor", Proc. SPIE 7283, 4th International Symposium on Advanced Optical Manufacturing and Testing Technologies: Optical Test and Measurement Technology and Equipment, 72833E (20 May 2009); https://doi.org/10.1117/12.828772

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available