LabVIEW and PCI DAQ Card Based HTS Test and Control Platforms

This paper introduces the relevant parameters and related characteristics of the LabVIEW and PCI6221 data acquisition (DAQ) card, describes in detail the approach of building the measure and control platform of virtual instrument (VI) using LabVIEW and PCI6221, specifically discusses the system's application in high temperature superconductor (HTS) research including the test of HTS volt-ampere characteristics and the HTS magnetic energy storage. The experiments prove that the VI test and control system is easy to build and convenient to use. signal processing functions and a large number of modern high-level signal analysis tools. It is very easy to integrate with a variety of hardware and to communicate with mainstream industrial field buses. It is also easy to link with the most common standard real-time database. PCI6221 card is a product of NI Corporation's M-series which is widely used for DAQ. The purpose of DAQ is to measure a physical phenomenon such as temperature, pressure, light or sound. PC-based DAQ uses a combination of hardware, software, and a computer to automate measurement and make data available for analysis. This work applied the above mentioned software and hardware techniques to build HTS related measurement and control systems.