year 13, Issue 1 (Journal of Acoustical Society of Iran 2025)
مجله انجمن علوم صوتی ایران (مهندسی صوتیات سابق) 2025, 13(1): 77-85 |
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Jafari S, Cheraghi Shirazi N. Innovative Method for Detecting Ultrasonic Transducer Disconnection in Sonar Systems. مجله انجمن علوم صوتی ایران (مهندسی صوتیات سابق) 2025; 13 (1) : 9
URL: http://joasi.ir/article-1-321-en.html
URL: http://joasi.ir/article-1-321-en.html
Abstract: (18 Views)
In ultrasound-based systems such as echo‑sounders and sonar, if the transducer becomes disconnected from the device due to cable damage, short‑circuit, or transducer failure, no ultrasound waves are transmitted into the water, and consequently, no echo is received. This article presents an innovative method for detecting the connected/disconnected status of the transducer. The technique exploits the inherent ringing behavior (decay time) of the transducer's diaphragm after the excitation pulse ends. When the transducer is properly connected, its diaphragm continues to vibrate for a short period (decay time); however, if disconnected, no such persistent vibration occurs. By measuring the transducer's voltage immediately after the transmission phase and processing its decay time, a disconnection can be detected, and appropriate warnings can be issued to the system operator. The proposed approach employs analog circuitry to capture the decay signal, followed by digital processing in a microprocessor. The method is first validated through simulation of the transducer, transmitter, and receiver circuits in Multisim. It is then successfully implemented in a commercial echo‑sounder device designed by the authors, and the practical results are presented and discussed.
Article number: 9
Type of Study: Applicable |
Subject:
Signal Processing
Received: 2025/05/4 | Accepted: 2025/10/15 | Published: 2025/12/21
Received: 2025/05/4 | Accepted: 2025/10/15 | Published: 2025/12/21
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