Accession Number : ADD006062

Title :   Combined Intrusion Sensor Line.

Descriptive Note : Patent,

Corporate Author : DEPARTMENT OF THE NAVY WASHINGTON DC

Personal Author(s) : Redfern,John T

Report Date : 13 Mar 1979

Pagination or Media Count : 5

Abstract : A single composite cable is deployed between adjacent monitoring stations for sensing an intruder. A number of piezoelectric elements disposed in the cable provide electrical intrusion signals when they are disturbed. Power and triggering pulses for the stations are fed through the cable by a pair of electrical conductors and optical signals representative of the intrusion signals are fed through at least one optical fiber. As a result, the composite cable is relatively lightweight and compact to simplify deployment and it avoids the problems normally associated with crosstalk. (Author)

Descriptors :   *Patents, *Transmission lines, *Cable assemblies, *Piezoelectric materials, *Intrusion detectors, *Optical detectors, Composite structures, Monitoring, Electric conductors, Fiber optics, Security

Subject Categories : Electrical and Electronic Equipment
      Optical Detection and Detectors

Distribution Statement : APPROVED FOR PUBLIC RELEASE