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Differential phonogramsA new noise measuring method is outlined that is based on electronic analysis of the radiated noise. Non-relevant components are suppressed, while the differential phonogram displayed on the oscilloscope screen discloses the information carrying components. It allows low skilled operators to perform: (1) correct alignment of equipment; (2) detection of incipient failure; and (3) checking of prototypes.
Document ID
19740020290
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Authors
Halpert, E. (Kanner (Leo) Associates Redwood City, CA, United States)
Beuran, N. (Kanner (Leo) Associates Redwood City, CA, United States)
Date Acquired
August 7, 2013
Publication Date
June 1, 1974
Publication Information
Publication: The 4th Natl. Conf. on Acoustics, Vol. 1A (NASA-TT-F-15375)
Subject Category
Physics, General
Accession Number
74N28403
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.
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