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Noise figure measurement concept for acoustic amplifiersOptimum length buffer crystals are used with an amplification section for measuring the noise figure for acoustic amplifiers. Measuring the time required to saturate with noise a signal, which is reflected back and forth in the circuit, gives a direct measurement of the amplifiers noise figure.
Document ID
19680000272
Acquisition Source
Legacy CDMS
Document Type
Other - NASA Tech Brief
Authors
Johnson, V. R.
Yeager, J. R.
Date Acquired
August 4, 2013
Publication Date
July 1, 1968
Subject Category
Electronic Components And Circuits
Report/Patent Number
GSC-10066
Report Number: GSC-10066
Accession Number
68B10272
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.

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