Angle and/or length sensor (transmitter)

摘要

Angle and/or length sensor for determining the absolute value of the angle and/or the length of a body, characterised by - a light source (10) - a diffraction prism (12) which is arranged in the light path and whose roof edges and/or prism (apex) angles vary over its extent, - a colour-selective light sensor unit (14) which is swept over by the light beam, which is spectrally decomposed and deflected by the diffraction prism (12), - it being the case that the diffraction prism (12), or else the light source (10) and the light sensor unit (14) are applied to the body whose angle or length is to be determined, and - a computing unit (16) for comparing the respective signal pattern of the light sensor unit (14) with signal patterns input into a store (memory) for the multiplicity of angle or length positions. <IMAGE>