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Title: On-chip compensation of self-heating effects in microbolometer infrared detector arrays
Authors: Gu, X.
Karunasiri, G. 
Yu, J.
Chen, G. 
Sridhar, U.
Zeng, W.J.
Keywords: Bolometer
Focal plane array
Infrared imaging
Self-healing effect
Issue Date: 30-Jun-1998
Citation: Gu, X.,Karunasiri, G.,Yu, J.,Chen, G.,Sridhar, U.,Zeng, W.J. (1998-06-30). On-chip compensation of self-heating effects in microbolometer infrared detector arrays. Sensors and Actuators, A: Physical 69 (1) : 92-96. ScholarBank@NUS Repository.
Abstract: It is well known that the signal due to self-heating during read-out of uncooled microbolometers is much larger than that created by incident infrared (IR) radiation to be detected. This results in a degradation of the performance by requiring a large dynamic range of the preamplifier to be allocated for the signal due to self-heating. In this paper, we have studied self-heating during the read-out of microbolometer IR detectors and demonstrated a compensation technique using two microbolometers arranged in a Wheatstone bridge read-out circuit. Finally, the concept is extended for application in focal plane arrays (FPA) and a possible circuit configuration is given to achieve the compensation which may enhance the performance of uncooled detector arrays. © 1998 Elsevier Science S.A. All rights reserved.
Source Title: Sensors and Actuators, A: Physical
ISSN: 09244247
Appears in Collections:Staff Publications

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