A 10-V Josephson voltage standard

The design and operation of an 18992-Josephson-junction array, which can generate reference voltages up to 12 V, is described. This device has applications for the direct calibration of Zener reference standards, calibrators, and digital voltmeters at the 10-V level, and for very accurate linearity and ratio measurements. The modified design of the array resolves the problems of stability and power requirement. >