The invention relates to a closed-
loop control temperature compensation device and method for a
Stirling cryocooler drive controller. The temperature compensation device comprises a
Stirling cryocooler, an upper computer and a monitor, the
Stirling cryocooler is integrally arranged in an
incubator during deployment, and the upper computer and the monitor are arranged outside the
incubator. According to the temperature compensation method, the actual differential
voltage fed back by a temperature sensor in the
refrigeration assembly serves as the reference, the target
voltage of closed-
loop control serves as a temperature compensation object, and closed-loop temperature compensation calibration is achieved. The temperature excursion characteristic of the whole Stirling
cryocooler is comprehensively considered, the temperature excursion characteristics of all circuits of the driving controller are covered, and the temperature excursion influence of the
direct current motor and the
refrigeration assembly is further included; compared with a traditional scheme of only calibrating the temperature excursion characteristic of the
local circuit of the controller, the temperature
compensation effect of the method is more in line with the actual working condition. Actual measurement shows that the
temperature control accuracy of the three-temperature temperature of the Stirling
cryocooler after temperature compensation is better than that of the Stirling
cryocooler, and the
temperature control accuracy is greatly improved.