A cryogenic test facility for a superconducting magnet
has been constructed at the Institute of Plasma Physics, Chinese
Academy of Science. A measurement system was set up to
obtain quench signals and parameters in the test program, such
as cryogenic hydraulic performances and electromagnetic characteristics.
Thirty superconducting magnets in the Experimental
Advanced Superconducting Tokamak device and a number of
other magnets have been tested in the test system successfully. The
design of the measurement system is introduced from the point of
view of engineering practice. The measurement method of some
parameters is also discussed in detail. The highlight lies in type
selection installation techniques and instrumentation of sensors.