The present application relates to the technical field of wind tunnel test, and discloses a wind tunnel test device and method for ice
crystal test and temperature sensor test, which comprises a
backflow type wind tunnel, the
backflow type wind tunnel comprises a first test section, a second test section, a power section, a rectification section and a
temperature control section, a temperature sensor dynamic characteristic
test equipment is arranged in the first test section, the first end of the second test section is communicated with the
tail end of the first test section, an ice
crystal test equipment is arranged in the second test section, the air inlet of the power section is communicated with the
tail end of the second test section, and the air inlet is used for increasing the
airflow velocity in the wind tunnel, the rectification section inlet is communicated with the air outlet of an axial flow fan, and the rectification section inlet is used for eliminating the
distortion and turbulence in the
airflow, the rectification section outlet is communicated with the first end of the first test section, a component for generating
ice crystals in the ice
crystal test equipment is connected with one side of the rectification section, and the
temperature control section is arranged in series on the pipeline between the second test section and the power section, and is used for controlling the temperature of the
airflow in the
backflow type wind tunnel.