Electricity: measuring and testing – Magnetic – With means to create magnetic field to test material
Patent
1976-06-16
1978-03-07
Corcoran, Robert J.
Electricity: measuring and testing
Magnetic
With means to create magnetic field to test material
73362R, 324209, 331 65, 331135, 331181, 324237, G01R 3312
Patent
active
040782018
ABSTRACT:
The invention concerns a measuring instrument for measuring phase shifts in four terminal electrical networks, where the network whose phase shift is to be measured is connected into the feedback circuit of an R-C phase shifter oscillator, and where the generated frequency depends on the phase shift of the four terminal network and of the RC-phase shifter, and where the circuit is so dimensioned that the following oscillation conditions are satisfied:
REFERENCES:
patent: 3254311 (1966-05-01), Collins et al.
BBC Brown Boveri & Company Limited
Corcoran Robert J.
Durr Frank L.
Greene Orville N.
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