Seismic System for Real-Time Reporting.
OFFICE OF THE SECRETARY OF THE ARMY WASHINGTON D C
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The invention relates to seismic systems for remote monitoring of roads and trails in order to determine the volume and direction of traffic thereon. Accordingly, an object of the invention is apparatus for detecting movement of troops or equipment which may occur at either one or two-spaced locations along a path and the direction of such movement if it passes between the spaced locations.
- Military Operations, Strategy and Tactics
- Seismic Detection and Detectors