Comparison of Aluminum and Copper Fuse Opening Switches under Room and Cryogenic Temperature Conditions.

摘要

The characteristics of electrically exploded aluminum and copper foil fuses are investigated and compared under varying temperature conditions. A 34 to 39 KJ system is used to explode the fuses in room temperature glass beads (sand), sand cooled to approximately -77 C, liquid nitrogen, and deionized water. The temperature of the quench medium is seen to have an effect on fuse behavior with aluminum fuses being more affected. Two data processing methods are used and are found to produce quite different results. Because of this difference only a qualitative comparison of the behavior of the fuses is given. The first method involved using voltage and current data scalefactored and integrator droop corrected to compute resistivity. The second method used a self consistent solution to the circuit model to recalibrate the voltage and current signals and then compute resistivity. (Author)