GPS Sensor Electronics Unit Environmental Stress Screening Test Technique

Abstract

The Environmental Stress Screening test objective is to validate proper manufacturing and find any manufacturing defects in a flight unit before delivery by using temperature modulation and vibration simulations. The ESS test performs temperature cycling and employs random vibrations to test the reliability of the unit. Temperature regulation is also provided via the poly-alpha-olefin (PAO) coolant flowing through the unit under test (UUT), which is controlled by a cooling system.