Abstract :
Summary form only given, as follows.Summary form only given. The Australian voltage standard uses a 1 V Josephson junction array fabricated by NIST and excited at 73 GHz. The entire system is described, including: the liquid-helium dewar designed to permit permanent immersion of the array, the array bias circuitry, the Gunn-diode driver circuitry, the system of low-thermal key-switches, and other techniques of minimising small errors and interference. The effect of various guard and ground connections to secondary electronic standards is described. A complete Type A and Type B uncertainty analysis of the system is given.
Keywords :
Gunn diodes; Josephson effect; measurement errors; measurement standards; millimetre wave measurement; superconducting junction devices; superconducting microwave devices; voltage measurement; 1 V; 73 GHz; Australia; Gunn-diode driver circuitry; Josephson array; NIST; array bias circuitry; ground connections; liquid-helium dewar; low-thermal key-switches; permanent immersion; secondary electronic standards; uncertainty analysis; voltage standard; Australia; Diodes; Driver circuits; Helium; Interference; Josephson junctions; Measurement standards; NIST; Semiconductor device measurement; Voltage;
