Abstract
A detector has the function of converting the energy carried by electromagnetic radiation issuing from a thermal scene into an electrical signal usable by an operator. Depending on their operating principles the various types of detector are usually classed as
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thermal detectors: the amplitude of the electrical signal is proportional to the radiant energy expressed in watts;
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photon detectors: the amplitude of the signal is proportional to the photon flux expressed as the number of photons per second.
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Caniou, J. (1999). Thermal detectors. In: Passive Infrared Detection. Springer, Boston, MA. https://doi.org/10.1007/978-1-4757-6140-5_10
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DOI: https://doi.org/10.1007/978-1-4757-6140-5_10
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