Electricity: measuring and testing – Measuring – testing – or sensing electricity – per se – Plural inputs
Patent
1995-08-29
1998-04-07
Nguyen, Vinh P.
Electricity: measuring and testing
Measuring, testing, or sensing electricity, per se
Plural inputs
324 74, 364483, G01R 2106
Patent
active
057368481
ABSTRACT:
A system for measuring the energy output from one or more electrical energy sources first makes an analog power measurement, and converts the resultant output into digital form. The A/D converter includes a sigma-delta modulator in series with a digital filter. Then, the output from the A/D converter is inputted to a digital quantizer via a serial interface. A programmable calibration value is also inputted into the digital quantizer from a computer via a non-volatile memory, such that the operating level/calibration of the digital quantizer is controllable by the computer.
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Cermeno Raul
De Vries Jacob
Hodel Peter
Petr Jan
Landis & Gyr Technology Innovation AG
Nguyen Vinh P.
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