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Vol. 170, Issue 5, May 2014, pp. 60-66




Application and Research of Ultrasonic Horn in Ultrasonic Ranging System

Ju Xiaotao, Gu Lichen, Dong Xinyuan

School of Mechanical and Electronic Engineering, Xi'an University of Architecture and Technology, Xi’an Shaanxi, 710055, China
Tel.: 86-59-8220 2528, fax: 86-59-8220 2528

E-mail: juxiaotao2008@126.com


Received: 27 February 2014 /Accepted: 30 April 2014 /Published: 31 May 2014

Digital Sensors and Sensor Sysstems


Abstract: Aiming at the problem that echo signal is hard to recognize caused by ultrasonic energy’s overquick dispersion and attenuation, a kind of ultrasonic horn is designed. According to the acoustic theory analysis, the ultrasonic horn can increase its radiation energy by improving impedance matching. The ultrasonic horn can make the directivity of sound source sharper and energy more centralized because of the large outlet. The simulation calculation and experiment results prove the effectiveness of ultrasonic horn to improve the scope of ultrasonic ranging.


Keywords: Ultrasonic horn, Impedance match, Directivity, Ultrasonic ranging.


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