In:
Japanese Journal of Applied Physics, IOP Publishing, Vol. 38, No. 3S ( 1999-03-01), p. 1725-
Abstract:
Interferometers based on laser Doppler effect are used as the vehicle to examine the
cross relationship and performance impact among sub-systems such as optical layout, mechanical layout, signal processing algorithm, and signal processing circuitry. The
classification of interferometers into the three main categories ( e.g. homodyne, heterodyne and
quadrature) and their influence on signal processing algorithms and circuitry which impact interferometer performance is examined. A quadrature configuration, found to have some
unique advantages, is detailed. Also presented is an experimental laser encoder set-up equipped with a real-time signal processing circuitry based on a high performance field programmable gate
array (FPGA) circuitry with a PC interface for quadrature signal decoding that was constructed to verify the quadrature configuration presented. The experimental data obtained that verifies
how this new system architecture can fulfill the stringent demands of today's high performance, high accuracy metrology systems is also examined.
Type of Medium:
Online Resource
ISSN:
0021-4922
,
1347-4065
DOI:
10.1143/JJAP.38.1725
Language:
Unknown
Publisher:
IOP Publishing
Publication Date:
1999
detail.hit.zdb_id:
218223-3
detail.hit.zdb_id:
797294-5
detail.hit.zdb_id:
2006801-3
detail.hit.zdb_id:
797295-7
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