ENCODER USING MAGNET DROP OUT FEATURE FOR THEFT DETECTION
摘要
<p>An encoder to be mounted to a shaft extending from a piston meter configured to compute a volume of distributed fluid includes a magnet affixed to the shaft via a floating magnet holder, a magnetic sensor configured to sense the flux density and direction of a magnetic field created by the magnet and to output a signal indicating the flux density and direction of the magnetic field to a printed circuit board, and the printed circuit board configured to output a signal indicating the volume of distributed fluid if the encoder has not been tampered with and configured to output an error signal if the encoder has been tampered with.</p>
申请公布号
WO2011078967(A1)
申请公布日期
2011.06.30
申请号
WO2010US59340
申请日期
2010.12.07
申请人
MEASUREMENT SPECIALTIES, INC.;AMANTE, PHILIP A.;CREAK, JEFFREY