LabVIEW-based Adaptive Cyclic Voltage Regulator PCT Test System

Rare earth hydrogen storage materials are indispensable raw materials for nickel-metal hydride batteries and solid-state hydrogen storage devices. In the process of R&D and production of rare earth hydrogen storage materials, PCT curve (pressure-composition-isotherm) is an essential test performance curve. In order to solve the problems of low efficiency and cumbersome operation of PCT test system, a new PCT test system with adaptive cyclic pressure regulation was designed. This paper introduces the hardware structure design of the system, the basic test principle, a mathematical model and software structure design of the adaptive cyclic pressure regulation method, the data acquisition by using the USB-6002 data acquisition card to improve the accuracy of the collected data, and a test program based on LabVIEW software with reasonable automatic test procedures is designed to reduce the difficulty of operation and improve the efficiency of automatic test.