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US07847690B2 System and method for detecting tampering of a utility meter 有权
用于检测电表的篡改的系统和方法

System and method for detecting tampering of a utility meter
Abstract:
A tamper alarm circuit for detecting a tampered condition of a utility meter is disclosed. The tamper alarm circuit has a transducer coupled to an amplification circuit which is coupled to a detection circuit, the detection circuit generating an alarm condition when the detection circuit determines that a voltage signal generated by the transducer and amplified by the amplification circuit has reached a predetermined threshold.
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