Expanded Function of Magnetic Property Measurement System (SQUID)

Taking the magnetic property measurement system (SQUID) as the main body and LabVIEW graphical programming language as the software development platform, the electrical performance test system is constructed. The system uses the extended interface of the magnetic property measurement system (MPMS), which is composed of a general-purpose interface bus (GPIB) card connected to the Keithley 2400 source meters, 2182A nanovoltmeters and other measuring instruments to realize the real-time input of measurement parameters, collection of environmental data, and intuitive display of measurement results. The system can accurately control temperature and magnetic field, with a wide adjustment range, and can achieve electrical performance measurement in an environment where the temperature is 1.9~400 K and the magnetic field is 0~7 T, such as I-V curve, R-T curve, R-H curve, etc. The system expands the function and application research field of MPMS magnetic measurement system.