Instrumentation and Procedures for AC Quantum Hall Effect Based Impedance Calibrations

摘要

For a newly formed system for calibrating impedance standards, bridges and procedures have been developed which make it possible to calibrate resistance, capacitance and inductance standards by linking them with AC quantized Hall resistance. Only coaxial transformer bridges are used for this purpose, all of them being of modular design. Some of the modular units can be utilized in more than one bridge. Calculable resistors of various designs have been prepared as reference standards for characterization tests of quantum Hall devices.