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Data-Acquisition System For Rotor VibrationsNew system trades hardware for software to reduce cost. Composite train of interspersed blade-detection pulses produced by gates at four probe ports on data-acquisition board. Pulses latch count from high-speed wraparound clock counter and initiate writing of count onto current address of memory. Result: time corresponding to each blade passage stamped into memory.
Document ID
19880000162
Acquisition Source
Legacy CDMS
Document Type
Other - NASA Tech Brief
Authors
Posta, Stephen J.
(NASA Lewis Research Center, Cleveland, Ohio.)
Brown, Gerald V.
(NASA Lewis Research Center, Cleveland, Ohio.)
Date Acquired
August 13, 2013
Publication Date
March 1, 1988
Publication Information
Publication: NASA Tech Briefs
Volume: 12
Issue: 3
ISSN: 0145-319X
Subject Category
Electronic Systems
Report/Patent Number
LEW-14557
Accession Number
88B10162
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.

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