In order to realize accurate temperature measurement under high temperature and harsh environment,a matching software and hardware system has been developed based on the Mo-Re alloy ultrasonic guided wave temperature sensor that has been successfully developed by the research group.The hardware system consists of FPGA main control circuit,ultrasonic transmitting circuit,echo receiving circuit,A/D conversion circuit and USB communication circuit.The software system is a set of control interface developed based on LabVIEW platform,which can realize the functions of parameter control,ultrasonic echo display,data storage,cross-correlation calculation,temperature analysis and display.The test results show that the system can realize the temperature measurement in the range of 20~1 800 ℃,and the measurement accuracy is high.It can be directly used as a kind of equipment in practical projects.
Key words
ultrasonic guided wave /
LabVIEW /
FPGA /
data acquisition system
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