APPARATUS FOR NON-INCREMENTAL POSITION AND FORM MEASUREMENT OF MOVING SOLD BODIES
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United States of America Patent
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Issued Date -
Oct 24, 2013
app pub date -
Sep 15, 2011
filing date -
Nov 30, 2010
priority date (Note) -
Abandoned
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Abstract
The invention relates to an apparatus (1) for non-incremental position and form measurement of moving solid bodies (7), containing a laser Doppler distance sensor (10) in wavelength multiplexing technique with at least two different wavelengths (λ1, λ2) and with a modular fibre optic measurement head in its sensor design, which contains two additional modules, which are connected to the measuring head by means of fibre optics a light source unit (2) and a detection unit (4). Two laser light bundles (37) of different wavelengths (λ1, λ2) in the light source unit (2) are coupled into a glass fibre (24). The bichromatic scattered light in the detection unit (4) is split into the different wavelengths (λ1, λ2) corresponding to the two measurement channels (41, 42) and subsequently are detected separately by means of two photo detectors (43, 44).
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