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Proceedings Paper

Calibration source and temperature standard for passive millimetre wave imagers
Author(s): Chris T. Taylor; Peter Scicluna; Peter Wilkinson; Neil Salmon
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Paper Abstract

This paper discusses a practical and affordable approach to the accurate calibration of electronic beam-forming passive millimetre-wave imagers. With the aim of calibrating imagers with radiometric sensitivities ΔT < 1 K, we have constructed a thermal radiation source at ambient temperature that fills the imager field-of-view at close range and can support several controllable thermal radiation sources to provide absolute and differential radiation temperature standards. Using a variety of temperature sensors, which have been extensively cross-calibrated against each other and a commercially provided calibration standard that is accurate to < 0.1 K, we have achieved absolute and relative calibration temperature uncertainties of less than 0.25 K.

Paper Details

Date Published: 12 October 2010
PDF: 6 pages
Proc. SPIE 7837, Millimetre Wave and Terahertz Sensors and Technology III, 78370N (12 October 2010); doi: 10.1117/12.864847
Show Author Affiliations
Chris T. Taylor, The Univ. of Manchester (United Kingdom)
Peter Scicluna, The Univ. of Manchester (United Kingdom)
Peter Wilkinson, The Univ. of Manchester (United Kingdom)
Neil Salmon, QinetiQ Ltd. (United Kingdom)


Published in SPIE Proceedings Vol. 7837:
Millimetre Wave and Terahertz Sensors and Technology III
Keith A. Krapels; Neil A. Salmon, Editor(s)

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