PERFORMANCE OF TRW NEW GENERATION PULSE TUBE COOLERS

摘要

Using the TRW next-generation cooler technology, two IMAS Engineering Models (S/N101 and 102) with different cold head configurations were designed, fabricated, and tested. This new generation of coolers was designed with much lighter weight and compact volume. They feature user friendly interface and use simpler electronics with lower EMI and ripple current than our first generation cooler. The refrigeration performance of the coolers was measured over a wide range of input power, cooling temperatures, and refrigeration loads, and at various operating strokes and frequencies and heat rejection temperatures. The design was verified for space application with a series of flight environmental tests and an ongoing life test at TRW.