Electricity: measuring and testing – Measuring – testing – or sensing electricity – per se – Plural inputs
Patent
1991-05-06
1992-12-08
Karlsen, Ernest F.
Electricity: measuring and testing
Measuring, testing, or sensing electricity, per se
Plural inputs
364483, G01R 21133
Patent
active
051701154
ABSTRACT:
A sampling type measuring device wherein an analog signal is measured by sampling the analog signal, converting each value obtained by sampling into digital form, and then processing the digital values. Exponential averaging calculation is performed directly on the digital values. Thus, no provision or time is needed to regulate the sampling period, thereby shortening the time required to perform measurement.
REFERENCES:
patent: 4752731 (1988-06-01), Toda
patent: 4992725 (1991-02-01), Komatsu et al.
patent: 5081413 (1992-01-01), Yamada et al.
Goto Eiichi
Hiraishi Yukiyoshi
Kashiwabara Yukio
Karlsen Ernest F.
Kojima Moonray
Yokogawa Electric Corporation
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