NASA Logo

NTRS

NTRS - NASA Technical Reports Server

Back to Results
Fiber optic sensors for measuring angular position and rotational speedTwo optical sensors, a 360 deg rotary encoder and a tachometer, were built for operation with the light source and detectors located remotely from the sensors. The source and detectors were coupled to the passive sensing heads through 3.65 meter fiber optic cables. The rotary encoder and tachometer were subjected to limited environmental testing. They were installed on an air breathing engine during recent altitude tests. Over 100 hours of engine operation were accumulated without any failure of either device.
Document ID
19800010098
Acquisition Source
Legacy CDMS
Document Type
Technical Memorandum (TM)
Authors
Baumbick, R. J.
(NASA Lewis Research Center Cleveland, OH, United States)
Date Acquired
September 4, 2013
Publication Date
March 1, 1980
Subject Category
Instrumentation And Photography
Report/Patent Number
NASA-TM-81454
E-381
Accession Number
80N18368
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.
No Preview Available