The accelerated vacuum life test research of Dewar

The Dewar package is one important way for infrared focal plane detector's application. Vacuum life is one of pivotal technologic parameter for infrared detector Dewar assembly. It is important to estimate the vacuum life of Dewar in room temperature fleetly and truly. The accelerated vacuum life test is a good way to shorten test time. The statistical and analytical way of test data to estimate distribution of Dewar vacuum life that is confirmed. Through test accelerated factor, vacuum life of Dewar in room temperature can be gained.