SinoTD20 Communication Transducer-Ultrasonic transducer-Tiandunbj Technology Co., Ltd.

SinoTD20 Communication Transducer

SinoTD20 is a pulsed ultrasonic transducer designed for underwater acoustic applications, operating at a frequency of 20 kHz.

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Product details

Product introduction

SinoTD20 is a pulsed ultrasonic transducer designed for underwater acoustic applications, operating at a frequency of 20 kHz. It supports multiple pulse signal types (such as sine wave, Chirp, PSK, FSK, etc.), making it suitable for underwater acoustic systems requiring high-power pulse output. The transducer features omnidirectional horizontal directivity (360°) and 90° vertical directivity at resonance frequency. Its design takes into account power limitations, thermal management and various mounting methods, making it suitable for complex underwater environments.

Main application scenarios

(1) Underwater wireless communication

(2) Underwater positioning and navigation

(3) Underwater detection and imaging

(4) Engineering monitoring

(5) Underwater acoustics scientific research

Technical specification

No.	Parameter	Performance
1.	Center Frequency	20 kHz
2.	Max. Input Pulse Power	350 W
3.	Free-Field Voltage Sensitivity (FFVS)	-195.0 dB V/μPa @ fs
4.	Transmitting Voltage Response (TVR)	139-142 dB μPa/V @ 1 m
5.	Beam Pattern	omnidirectional (f ≤ 9 kHz)
6.	Azimuth Angle	Omnidirectional (horizontal) × 90° (vertical)
7.	Dimensions	Ø 77 × 60 mm (excluding connector)
8.	Weight	1.8 kg
9.	Operating Depth	300 m
10.	Operating Temperature Range	-10°C to +60°C
11.	Cable Length	10 m