Abstract

In this paper is discussed a common type of capacity bridge together with the modifications necessary and the precautions to be taken for operation at frequencies of the order of 500,000 cycles per second. Fixed resistance ratio arms are employed and phase angle correction is obtained either by variable resistors or by the insertion of variable inductors as first suggested by Rosa and Grover. Difficulties involved in the source of power, the balancing of ratio arms with respect to ground, the detection of balance and the shielding of instruments are discussed.

© 1926 Optical Society of America

A Double Percentage Bridge

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