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Intruder detection systemMoving coil geophones are utilized to develop a small, rugged, battery operated system capable of detecting seismic disturbances caused by intruders. Seismic disturbances sensed by each geophone are converted into electrical signals, amplified, and transmitted to remote receiver which provides listener with aural signal.
Document ID
19700000618
Acquisition Source
Legacy CDMS
Document Type
Other - NASA Tech Brief
Authors
Lee, R. D.
Date Acquired
August 5, 2013
Publication Date
November 1, 1970
Subject Category
Electronic Systems
Report/Patent Number
ARC-10097
Report Number: ARC-10097
Accession Number
70B10638
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.

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