A Liquid Level Measurement Technique Outside a Sealed Metal Container Based on Ultrasonic Impedance and Echo Energy

The proposed method for measuring the liquid level focuses on the ultrasonic impedance and echo energy inside a metal wall, to which the sensor is attached directly, not on ultrasonic waves that penetrate the gas–liquid medium of a container. Firstly, by analyzing the sound field distribution charac...

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Bibliographic Details
Main Authors: Bin Zhang, Yue-Juan Wei, Wen-Yi Liu, Yan-Jun Zhang, Zong Yao, Li-Hui Zhao, Ji-Jun Xiong
Format: Article
Language:English
Published: MDPI AG 2017-01-01
Series:Sensors
Subjects:
Online Access:http://www.mdpi.com/1424-8220/17/1/185