Data processing: measuring – calibrating – or testing – Measurement system in a specific environment – Electrical signal parameter measurement system
Reexamination Certificate
2005-05-10
2005-05-10
Hoff, Marc S. (Department: 2857)
Data processing: measuring, calibrating, or testing
Measurement system in a specific environment
Electrical signal parameter measurement system
C324S074000, C324S130000
Reexamination Certificate
active
06892144
ABSTRACT:
A modular electronic utility meter has a sensor portion that includes sensor devices and a memory device storing calibration and/or error information specific to the sensor devices. Such a sensor portion is designed for use with a corresponding measurement portion that extracts the calibration and/or error information from the memory in the sensor portion. The measurement module then employs the calibration and/or error information in its calculation of energy consumption information. The calibration information includes phase and magnitude error information for at least one of a current sensing device and/or a voltage-sensing device. That error information may include coefficients of a polynomial.
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“Alpha™ Solid State Polyphase Meter (Watts, Vars, VA)”, AB Power T&D Company Inc., May 1992, (6 pages).
Slater Byron J.
Voisine John T.
Hoff Marc S.
Kim Paul L
Landis+Gyr Inc.
Maginot Moore & Beck
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