Slow change parameter acquisition system for space engine test

The slow change parameter acquisition system is composed of engine parameter acquisition device, process parameter acquisition device, temperature parameter acquisition device, duplicate and current parameter acquisition device and acquisition software. The 472 channel data acquisition system is composed of 8 GM180 dynamic signal test and analysis system acquisition cases with a sampling frequency of 10000Hz.Synchronous collection of pressure, bridge, temperature, frequency, digital switching, current, voltage, platinum resistance and other signals.