Definition of bolometer

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Excelitas PCO GmbH - PCO.Edge 11-24 BIO LB

Photonics Dictionary

bolometer: A thermometric instrument used for the detection and measurement of radiant energy. Its essential component is a short narrow strip covered with a dead black absorbing coating and mounted at the lower end of a long cylindrical tube having a stop across it to exclude unwanted radiation. The electrical resistance of the strip changes with the changes in temperature that arise from absorbing varying amounts of radiant energy.

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