Invention Grant
- Patent Title: System and method for detecting tampering of a utility meter
- Patent Title (中): 用于检测电表的篡改的系统和方法
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Application No.: US12080056Application Date: 2008-03-31
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Publication No.: US07847690B2Publication Date: 2010-12-07
- Inventor: Michael A. Murphy
- Applicant: Michael A. Murphy
- Applicant Address: US NC Raleigh
- Assignee: Elster Electricity LLC
- Current Assignee: Elster Electricity LLC
- Current Assignee Address: US NC Raleigh
- Agency: Woodcock Washburn LLP
- Main IPC: G08B13/08
- IPC: G08B13/08 ; G08B13/14 ; G01R11/56 ; G01R21/133 ; G06F17/00

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.
Public/Granted literature
- US20090243866A1 System and method for detecting tampering of a utility meter Public/Granted day:2009-10-01
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