Temperature measurement of polymer extrusion by ultrasonic techniques
Temperature measurement of polymer extrusion by ultrasonic techniques
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DOI：
10.1088/0957-0233/10/3/007
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发表时间：
1999-03
影响因子：
2.4
通讯作者：
Tzu-Fang Chen;K. Nguyen;Szu-Sheng L. Wen;C. Jen
中科院分区：
文献类型：
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作者：
Tzu-Fang Chen;K. Nguyen;Szu-Sheng L. Wen;C. Jen
介绍了一种由压电换能器和超声波导组成的超声波传感器的温度测量方法。波导是一个包层棒，由一个钢芯和一个不锈钢包层组成，在探测端附近有两个不连续点。温度信息是由从这些不连续面反射的超声波回波与探测端面之间的时间延迟作为温度函数的信息获得的。超声波测得的温度与商用热电偶测得的温度吻合得很好。
Temperature measurement using an ultrasonic sensor consisting of a piezoelectric transducer and an ultrasonic waveguide is presented. The waveguide is a clad rod consisting of a steel core and a stainless steel cladding together with two discontinuities created near the probing end. The temperature information is obtained from information about the time delay between the ultrasonic echoes reflected from these discontinuities and the probing end surface as a function of the temperature. The temperature measured ultrasonically is in good agreement with that obtained by using a commercial thermocouple.