发明名称 |
Rate sensitive system for a seismic sensing range containment apparatus |
摘要 |
A rate sensitive system for a seismic sensing pedestrian range containment device monitors the shift in relative energy of a footstep as a function of footstep rate. A rate sensitive relative energy measurement circuit operates in conjunction with the detection of human footsteps and classification of personnel to limit the detection range of a seismic sensor to specific distance range.
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申请公布号 |
US4110730(A) |
申请公布日期 |
1978.08.29 |
申请号 |
US19770809270 |
申请日期 |
1977.06.23 |
申请人 |
THE UNITED STATES OF AMERICA AS REPRESENTED BY THE SECRETARY OF THE ARMY |
发明人 |
VARECKA, CHARLES P.;MERHAR, DONALD M. |
分类号 |
G01V1/00;(IPC1-7):H04B11/00;G08B13/22 |
主分类号 |
G01V1/00 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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