Sf. Gorlanov et Gg. Ryvkina, INSTRUMENTATION FOR PRECISELY MEASURING THE SUPERCONDUCTING TRANSITION AND CRITICAL-CURRENT IN SUPERCONDUCTORS, Instruments and experimental techniques, 36(5), 1993, pp. 820-822
Instrumentation for pulsed-current measurements of the critical curren
t in superconductors is described. The measurement accuracy is improve
d by decreasing the amount of heat released in the current contacts. T
he tail of the superconducting transition can be measured and the intr
agranular and intergranular currents can be determined. A block diagra
m of the device and the circuit diagram of one unit are presented.