Laser-based position measuring device
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United States of America Patent
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N/A
Issued Date -
Mar 2, 2006
app pub date -
Aug 24, 2005
filing date -
Aug 25, 2004
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
A position measuring device with a laser beam which rotates with a given constant rotary speed, a laser transmitter which is centered in a polar coordinate system present and emitting at least one rotary laser beam into an essentially horizontally lying plane, and allowing delivery of a synchronous signal with respect to a reference angle. A photosensitive position sensor is provided which delivers an electrical pulse which is identified by length in time and phase angle during illumination by the rotating laser beam, and the phase angle and length in time of these pulses constitute a measure of the angular position and the radial distance of the sensor in the indicated polar coordinate system.
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