Calibration of uncooled LWIR microbolometer imagers to enable long-term field deployment

Paul W. Nugent; Joseph A. Shaw

doi:10.1117/12.2053082

9 June 2014 Calibration of uncooled LWIR microbolometer imagers to enable long-term field deployment

Paul W. Nugent, Joseph A. Shaw

Proceedings Volume 9071, Infrared Imaging Systems: Design, Analysis, Modeling, and Testing XXV; 90710V (2014) https://doi.org/10.1117/12.2053082
Event: SPIE Defense + Security, 2014, Baltimore, MD, United States

Abstract

Radiometric calibration methods are described that enable long-term deployment of uncooled microbolometer infrared imagers without on-board calibration sources. These methods involve tracking the focal-plane-array and/or camera-body temperatures and compensating for the changing camera response. The compensation is derived from laboratory measurements with the camera viewing a blackbody source while the camera temperature is varied in a thermal chamber. Results are shown that demonstrate absolute temperature uncertainty of 0.35 °C or better over a 24-hour period, with more than half of this uncertainty inherent in the blackbody source to which the measurements are compared. This work was driven by environmental remote sensing applications, but the calibration methods are also relevant to a wide range of infrared imaging applications.

Citation Download Citation

Paul W. Nugent and Joseph A. Shaw "Calibration of uncooled LWIR microbolometer imagers to enable long-term field deployment", Proc. SPIE 9071, Infrared Imaging Systems: Design, Analysis, Modeling, and Testing XXV, 90710V (9 June 2014); https://doi.org/10.1117/12.2053082

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