A New-Structure IR Gas Sensor

1 November 1987

journal article
Published by IOP Publishing in Japanese Journal of Applied Physics

Vol. 26 (11R) , 1898-1902
https://doi.org/10.1143/jjap.26.1898

Abstract

We developed a new-structure IR gas sensor using a new type of pyroelectric IR detector with a solid-state chopper and an optical filter in the same package. This gas sensor enables high accuracy and high reliability due to the new structure (DEA Structure) and the new IR detector. The accuracy of the measurement is ±0.5% in the range of a 0∼20% concentration of CO₂ gas. The change of the output signal is within ±0.8% for 1500 hours. The characteristics (especially long-term operation) are superior to those of the conventional NDIR-type gas sensor.

Keywords

OPTICAL FILTERS

This publication has 1 reference indexed in Scilit:

A new-structure LiTaO3 pyroelectric infrared detector
Ferroelectrics, 1983