Multi-channel target temperature evolution law measuring device suitable for thermal vacuum environment

The invention provides a multi-channel target temperature evolution law measuring device suitable for a thermal vacuum environment, which comprises a slip ring assembly, a temperature collector, a rotating mechanism and a fixing mechanism, and is characterized in that a temperature sensor wire harness pasted on a test piece can freely rotate by using the slip ring assembly through the rotating mechanism; and the temperature sensor is arranged on the fixing mechanism through the temperature collector. According to the invention, a direct temperature measurement scheme of a movable part is effectively solved, a test state is simulated more truly, and important data support is provided for verifying the surface temperature of a product. And the temperature response capability of each product in an extreme environment can be examined for carrier rockets and weapon models. Through multiple verifications, the system is stable in operation, and the temperature error after tracing is extremely small and can be ignore