Temperature Measurement Using a Dual Frequency Acoustic Delay Line Oscillator

被引：0
作者：
Ishikawa, Eisuke [1 ]
Mizutani, Koichi [2 ]
机构：
[1] Graduate School of Engineering, University of Tsukuba
[2] Inst. of Eng. Mechanics and Systems, University of Tsukuba
来源：
Japanese Journal of Applied Physics, Part 1: Regular Papers and Short Notes and Review Papers | 2003年 / 42卷 / 08期
关键词：
Acoustic delay line; Mean temperature; Noncontact measurement; Nondestructive test; Oscillator; Phase object; Sound probe; Temperature; Temperature measurement; Thermometry;
D O I：
10.1143/jjap.42.5372
中图分类号：
学科分类号：
摘要：
An ultrasonic thermometer using a dual frequency (40kHz and 25 kHz) acoustic delay line oscillator is described. The mean temperature along the acoustic delay line of 315 mm length with a spatial temperature gradient was quickly measured in order to verify the usefulness of the ultrasonic thermometer. In the monitoring which lasted for 125 min, mean temperature was measured using the acoustical method and was found to agree with the mean temperature simultaneously measured by 20 thermocouples. The average error during the monitoring was 2% or less.
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页码：5372 / 5373
页数：1
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