Electricity: measuring and testing – Measuring – testing – or sensing electricity – per se – With electromagnetic field
Patent
1995-10-26
1997-11-11
Strecker, Gerard R.
Electricity: measuring and testing
Measuring, testing, or sensing electricity, per se
With electromagnetic field
324144, G01R 516, G01R 114, G01R 116, G01R 138
Patent
active
056868324
ABSTRACT:
A miniature crossed coil gauge is provided having an oriented rare earth magnet fixedly mounted on a rotary shaft for supplying a magnetic flux directed transverse to the shaft axis. The gauge housing provided by an upper and lower bobbin surrounds the magnet and supports the rotary shaft. A first and second coil are wound about the gauge housing in a crossed coil orientation encircling the magnet. A flux ring is disposed around the first and second coils axially aligned with respect to the magnet. The magnet has sufficient strength and the flux ring is mounted in sufficiently close proximity to the first and second coils to redistribute the flux supplied by the magnet so that the magnetic flux measured at the surface of the coils is substantially increased relative to the magnetic flux density measured with the flux ring removed. This gauge construction facilitates the fabrication of gauges so small that they can be directly mounted on printed circuit boards using conventional electronic component mounting equipment.
REFERENCES:
patent: 2486972 (1949-11-01), Osterlund et al.
patent: 2978639 (1961-04-01), Lawson
patent: 3621418 (1971-11-01), Baker
patent: 3995214 (1976-11-01), Dionne
patent: 4047136 (1977-09-01), Satto
patent: 4123675 (1978-10-01), Moskowitz et al.
patent: 4492920 (1985-01-01), Reenstra
patent: 4584495 (1986-04-01), Kordik
patent: 4646007 (1987-02-01), Faria
patent: 4673997 (1987-06-01), Gowda et al.
patent: 4724601 (1988-02-01), Macmanus et al.
patent: 4758784 (1988-07-01), Baker et al.
patent: 4760333 (1988-07-01), Ichimura et al.
patent: 4831293 (1989-05-01), Krop
patent: 4882659 (1989-11-01), Gloudemans
patent: 5017862 (1991-05-01), Brooks
patent: 5061893 (1991-10-01), Gutmann
Ayres Craig A.
Ayres John A.
Ehle David L.
Salmon Michael E.
Nu-Tech & Engineering, Inc.
Strecker Gerard R.
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