X-ray analysis apparatus including goniometer with angle encoders
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United States of America Patent
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Dec 7, 1993
Grant Date -
N/A
app pub date -
Aug 12, 1992
filing date -
Aug 14, 1991
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
An X-ray analysis apparatus includes angle encoders for the determination of angular positions of at least two rotary shafts, for example the .theta. shaft for a specimen holder, the 2.theta. shaft of an X-ray detector arm or the rotary shaft of an X-ray source. Because the angles are directly or indirectly measured relative to a fixed point, preferably coupled to a goniometer frame of the apparatus, accurate angle detection is ensured. The encoders can also be used as adjusting mechanisms for exact, flexible angular adjustment.
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