Automatic Ultrasonic Measurement of Sound Velocity in Liquids by a Phase Difference Method

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概要

• 論文の詳細を見る

• The working of a novel ultrasonic technique for measuring the sound velocity in liquids, which automatically cancels the dependence of temperature by a phase difference method is described in this paper. This technique uses a very simple circuit system which treats only the continuous sinusoidal waves and is constituted of only analog circuits. The temperature-compensation factor in the designing of the temperature-compensation circuit is derived from the equation obtained for the ultrasonic velocity in sea water. This measuring system is shown to yield a 0.0l% accuracy of velocity determination, independent of the temperature variation of ± 1.0℃ around 25.4℃ for the NaCl solution.

• 社団法人応用物理学会の論文
• 1998-05-30

著者

• Ikeda Kiyoshi

  Faculty Of Engineering Shinshu University

関連論文

• Ultrasonic Measurement of Concentration in Solutions by a Phase-Locked Loop Method
• Automatic Ultrasonic Measurement of Sound Velocity in Liquids by a Phase Difference Method
• Deviation Factor and Temperature-Compensation Factor of Simple Industrial Ultrasonic Solution-Concentration Sensor Which Automatically Eliminates Temperature Dependence
• Ultrasonic Measurement of Sound Velocity in Liquids by a Phase-Locked Loop

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