Fiber-optic transducer offers several advantages over mechanical linkages. Angular position of rotary valve measured by pair of optical-fiber deflectometers. Measurement device sensitive, immune to electromagnetic interference, and does not wear out since fibers do not make contact with valve. Device more rugged than linear or rotary variable-differential transformers it replaces.
Noncontacting Measurement of Shaft Angle
NASA Tech Briefs ; 11 , 2
1987-02-01
Miscellaneous
No indication
English
Noncontacting Measurement With a Thermocouple
NTRS | 1986
|NTRS | 1987
|Noncontacting electrokinetography system
NTRS | 1979
|Noncontacting valve-position indicator
NTRS | 1979
|Measurement of Soil Resilient Properties Using Noncontacting Proximity Sensors
Online Contents | 1996
|