Abstract:One certain temperature test system is a certain type of equipment measuring ambient temperature parameters in the launch of aircraft. Based on the structure design and material selection of thermocouple sensor, signal amplification, signal acquisition and data processing etc, the error factors of a temperature measurement system in a certain aircraft flight test are analyzed in this paper. Combined with the flight test details, and according to the actual application standards, some corresponding control measures to improve the test precision of system are given. At last, compared by testing the relevant circumstances, the validity of those proposed error control methods is verified.
