US 6,191,392 B1Granted

Method of measuring electromagnetic radiation

AssigneeSteag AST Elektronik GmbH

InventorsMarkus Hauf, Thomas Knarr, Heinrich Walk, Horst Balthasar, Uwe Müller

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Abstract

A method is provide for measuring electromagnetic radiation radiated from a surface of an object that is irradiated by electromagnetic radiation given off by at least one radiation source. The radiation given off by the radiation source is determined by at least one first detector, and the radiation given off by the irradiated object is determined by at least one second detector that measures the radiation. The radiation from the at least one radiation source is actively modulated with at least one characteristic parameter. The radiation determined by the second detector is corrected with the radiation determined by the first detector to compensate for the radiation of the radiation source reflected from the object.

Claims36

Dependent claims

A method of measuring electromagnetic radiation that is radiated from a surface of an object that is irradiated by electromagnetic radiation given off by at least one radiation source, said method including the steps of:

determining the radiation given off by said at least one radiation source by means of at least one first detector,
determining the radiation given off by the irradiated object by means of at least one second detector,
actively modulating the radiation from said at least one radiation source with at least one characteristic parameter, and
correcting the radiation determined by said at least one second detector with the radiation determined by said at least one first detector to compensate for the radiation of said at least one radiation source reflected from said object.

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Dependencies are inferred from the claim text.