Position measuring system
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United States of America Patent
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N/A
Issued Date -
May 4, 2006
app pub date -
Nov 2, 2005
filing date -
Nov 3, 2004
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
A position measuring system for determining the relative position of two objects includes a power supply unit for generating a variable operating current for a laser light source. At least one photodetector generates position-dependent output signals from the light received from the laser light source. In measurement operation, the power supply unit provides a direct current having a superimposed alternating current component to the laser light source.
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