Variable modulation of radiation and components

摘要

Various embodiments include systems and methods to provide selectable variable gain to signals in measurements using incident radiation. The selectable variable gain may be used to normalize signals modulated in measurements using incident radiation. The selectable variable gain may be attained using a number of different techniques or various combinations of these techniques. These techniques may include modulating a modulator having modulating elements in which at least one modulating element acts on incident radiation differently from another modulating element of the modulator, modulating the use of electronic components in electronic circuitry of a detector, modulating a source of radiation or combinations thereof. Additional apparatus, systems, and methods are disclosed.

主权项

1. An apparatus comprising:
a modulator having a plurality of modulating elements, one of the modulating elements having a structure that modulates radiation received at the modulator differently from another one of the modulating elements; a detector arranged to detect a processed signal of the radiation received at the modulator; and a controller to control the modulator such that, in each period of operation of the modulator on the received radiation, selectable variable gain is provided for the processed signal in the detector corresponding to the modulating elements.