The Development of High-speed Synchronous Temperature Data Acquisition System in Vacuumthermal Test Based on PXIe Bus

With the development of vacuum-thermal test,the original data acquisition system of the vacuum-thermal test cannot meet the test requirements in terms of sampling rate and acquisition synchronization and cannot accurately reflect the instantaneous temperature collection requirements of test pieces.This paper introduces the development of highspeed synchronous data acquisition system in vacuum-thermal test based on PXIe bus.Analyze the requirements of highspeed synchronous data acquisition in vacuum-thermal test,detailed description of the system structure,hardware and software components.And a simple analysis of the system’s operating results.