NASA Logo

NTRS

NTRS - NASA Technical Reports Server

Collections About News Help Login

Press Enter or click the Search button to begin your search.

Back to Results
Differential sound-level meterRelative difference between sound-levels at two different microphone sites is measured precisely with circuit that continuously monitors gains of two acoustical channels. Difference between two pilot voltages is utilized in regulating loop to force gain of second channel to track gain of first channel.
Document ID
19770000094
Acquisition Source
Legacy CDMS
Document Type
Other - NASA Tech Brief
Authors
Zuckerwar, A. J. (Old Dominion Univ.)
Date Acquired
August 8, 2013
Publication Date
June 1, 1977
Publication Information
Publication: NASA Tech Briefs
Volume: 2
Issue: 1
ISSN: 0145-319X
Subject Category
Mechanics
Report/Patent Number
LAR-12106
Report Number: LAR-12106
ISSN: 0145-319X
Accession Number
77B10094
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.

Available Downloads

There are no available downloads for this record.

Related Records

There are no records associated with this record.
No Preview Available