A Self-Balancing Capacitance Bridge

The combined advantages of the quick indicating capacitance meter and the precision capacitance bridge are obtained in a new form of self-balancing capacitance bridge. Features of the new instrument include per cent deviation indications, a wide capacitance range and an average balancing time of less than two seconds. A single scale, easily read and greatly expanded, serves for the entire range of the instrument and represents an improvement of some 3,000 per cent over conventional capacitance meters. The paper discusses the bridge network development, detector system requirements, and other design considerations.