Electricity: measuring and testing – Measuring – testing – or sensing electricity – per se – Frequency of cyclic current or voltage
Patent
1975-04-14
1976-06-08
Corcoran, Robert J.
Electricity: measuring and testing
Measuring, testing, or sensing electricity, per se
Frequency of cyclic current or voltage
336 20, 336DIG1, G01R 3302
Patent
active
039626288
ABSTRACT:
A cryogenic magnetic field gradiometer is described wherein adjustments of areas presented by a superconducting wire loop, that is confined in a support structure within a cryogenic environment, are adjusted mechanically through wire positioning elements operated by a plurality of parallel shafts extending to the exterior of the environment. In one embodiment the positioning elements are cams that cooperate to position portions of a wire loop, while in another form bell crank levers are used.
REFERENCES:
patent: 3142796 (1964-07-01), Goldberg et al.
Zimmerman et al., Ultrasonic Superconducting Magnetic Gradiometer, NBS Ret 10,736, Mar. 31, 1972, pp. 7-15.
Goodman et al., Superconducting Instrument Systems, Proc. of IEEE, vol. 61, No. 1, Jan. 1973, pp. 20-27.
Corcoran Robert J.
David Harvey A.
Doty Don D.
Sciascia Richard S.
The United States of America as represented by the Secretary of
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