Electricity: measuring and testing – Measuring – testing – or sensing electricity – per se – Frequency of cyclic current or voltage
Patent
1975-01-06
1976-02-17
Corcoran, Robert J.
Electricity: measuring and testing
Measuring, testing, or sensing electricity, per se
Frequency of cyclic current or voltage
G01R 3314
Patent
active
039394026
ABSTRACT:
An oscillographic ferrometer comprising a magnetizing means including a step-down transformer and a single-layer ellipsoidal solenoid connected to a single-turn secondary winding of said step-down transformer and having a constant turns density along the generatrix thereof, said solenoid being adapted for receiving a test sample, and magnetization and magnetizing field measuring channels cooperating with said magnetizing means, wherein said ellipsoidal solenoid is made with rectangular turns and has the geometrical dimensions thereof selected in agreement with the following relationship: ##EQU1## where K is the contraction coefficient of the solenoid generatrix, 2B.sub.L is the width of the linear rectangular profile representing the geometrical locus of the cross section centers of said solenoid end turns,
2a is the height of the linear rectangular profile representing the geometrical locus of the cross section centers of said solenoid end turns,
2L is the solenoid length between the cross section centers of said end turns.
REFERENCES:
patent: 3358224 (1967-12-01), Mogilevsky et al.
patent: 3500180 (1970-03-01), Mogilevsky
Ekimov Vadim Petrovich
Erastov Alexandr Petrovich
Mogilevsky Vitaly Moritsovich
Posokhin Viktor Vladimirovich
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