External means for increasing the sensitivity of a moving magnet

Details External means for increasing the sensitivity of a moving magnet External means for increasing the sensitivity of a moving magnet

1978-08-10

1980-10-07

Strecker, Gerard R.

Electricity: measuring and testing

Measuring, testing, or sensing electricity, per se

Plural ranges, scales or registration rates

324146, G01R 1508, G01R 138, G01R 516

Patent

active

042271487

ABSTRACT:
This invention relates to the modification of a moving magnet type of a direct current reading meter wherein by the addition of an electro-magnetic coil, the permanent magnet of the meter is influenced by the magnetic field of the coil with respect to the current flow to provide a reading to indicate full scale values of a much lower current value than that of the basic movement of the meter.

REFERENCES:
patent: 2458805 (1949-01-01), Taylor
patent: 3031620 (1962-04-01), Finley
patent: 3168689 (1965-02-01), Gelenius
patent: 3460038 (1969-08-01), Ziegler
patent: 3500201 (1970-03-01), Mentzer

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