Electricity: measuring and testing – Measuring – testing – or sensing electricity – per se – Frequency of cyclic current or voltage
Patent
1982-11-22
1985-07-30
Karlsen, Ernest F.
Electricity: measuring and testing
Measuring, testing, or sensing electricity, per se
Frequency of cyclic current or voltage
324 99D, 328132, G01R 1900, G01R 1706, H03K 520
Patent
active
045324700
ABSTRACT:
A measuring instrument provides a reading only when a desired measurement is taken by making successive measurements and waiting until two successive measurements are within a predetermined low range, the measurements are above a predetermined floor range, and the difference between a reading and successive measurements exceed a predetermined high range.
REFERENCES:
patent: 3984667 (1976-10-01), Loshbough
patent: 4008405 (1977-02-01), Neumann et al.
patent: 4158809 (1979-06-01), Dellamano
Becker Stephen A.
Ishimaru Mikio
John Fluke Mfg. Co. Inc.
Karlsen Ernest F.
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