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A new approach to helicopter rotor blade research instrumentationA rotor-blade-mounted telemetry instrumentation system developed and used in flight tests by the NASA/Langley Research Center is described. The system uses high-speed digital techniques to acquire research data from miniature pressure transducers on advanced rotor airfoils which are flight tested using an AH-1G helicopter. The system employs microelectronic PCM multiplexer-digitizer stations located remotely on the blade and in a hub-mounted metal canister. The electronics contained in the canister digitizes up to 16 sensors, formats this data with serial PCM data from the remote stations, and transmits the data from the canister which is above the plane of the rotor. Data is transmitted over an RF link to the ground for real-time monitoring and to the helicopter fuselage for tape recording.
Document ID
19790033570
Acquisition Source
Legacy CDMS
Document Type
Conference Proceedings
Authors
Knight, V. H., Jr.
(NASA Langley Research Center Flight Electronics Div., Hampton, Va., United States)
Date Acquired
August 9, 2013
Publication Date
January 1, 1978
Subject Category
Aircraft Instrumentation
Meeting Information
Meeting: In: International Instrumentation Symposium
Location: Albuquerque, NM
Start Date: May 1, 1978
End Date: May 5, 1978
Accession Number
79A17583
Distribution Limits
Public
Copyright
Other

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