SYSTEM FOR GENERATING A SIGNAL REPRESENTATIVE OF THE PROFILE OF A SURFACE MOVING RELATIVE TO THE SYSTEM
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United States of America Patent
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Issued Date -
Jun 1, 2023
app pub date -
Apr 27, 2021
filing date -
Apr 27, 2020
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Abstract
A system (1) for generating a signal from a surface (22) having a speed V in a direction U, comprising: a light source (2) emitting a Gaussian light beam along a first optical path (11); a sensor (3) able to evaluate the effects of the electromagnetic interference of the first beam; a means (2′, 4) for generating a second Gaussian light beam along a second optical path (12); a second sensor (3′) able to evaluate the effects of electromagnetic interference of the second beam; a focusing lens (5, 6) located on the first and/or the second optical path (11, 12), focusing the light beam at a distance f and defining an upstream optical path (11′, 12′); and a means (4′, 7) for routing the second beam able to redirect the second path (12′) in the direction of the first path (11′).
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