To solve the timeliness problem of ultrasonic temperature distribution measurement

a multi-channel synchronous ultrasonic measurement method for temperature distribution measurement was proposed. In this method

by using the multi-channel synchronous acquisition card and single chip microcomputer as the core device

the ultrasonic multi-channel synchronous temperature distribution measurement system was built up

and experiment for analyzing the error of the system hardware was carried out. On this basis

considering the pathological essence of ultrasonic temperature distribution in the image reconstruction

the two-stage image reconstruction method was applied to perform the temperature distribution measurement experiment. The results show that

this Labview-based ultrasonic measurement system can obtain accurate ultrasonic wave travelling time

and the temperature distribution obtained by the image reconstruction can agree well with the actual situation

indicating the above proposed system and the relative two-stage temperature distribution image reconstruction algorithm can accurately reflect the actual temperature distribution within the measurement range

which verified the feasibility and effectiveness of the proposed measurement system.