HOME  >  제품소개  >  Sonar System & Subsystems  >  Transducer  > SonoFDTl

Sono FDT:Flexural Disc Transducer

SonoFDT is latest compact Flexural disk transducer made specially for underwater applications where weight and size is major concern. Due to its salient structure, and low weight it can be easy mounted on underwater vehicles or communication points. The strong silicon covering makes its best to be used in sea water for long period of time.

Main Feature

Flexural disc transducer

High Power Low Frequency Acoustic Source

Compact and small weight.

Horizontally omni-directional

Can be used as projector at depths of 10m or greater to ensure a sufficient amount of pressure is placed on the transducer due to the flexural motion.

Reliable, robust, high performance, low frequency transducers.


Low Frequency Sound Source

Ranging Applications

Sound Navigation

Calibration Standard

Technical Specification
Nominal resonant frequency 4KHz (in bending motion)
Integral Amplifier or Tuning Element No
Receive Sensitivity @ 4KHz -152 dB re 1V/μPa
Recommended receive frequency range 2KHz ~ 10KHz
Maximum acoustic input@ 4KHz + 209.5 dB re 1μPa
Transmit Voltage Response@ 4KHz +121 dB re 1μPa/V at 1m
-3dB bandwidth 500Hz
Recommended transmit frequency range 3.0 – 5.0kHz, 8.5~10.0kHz
Maximum source level @ 136Hz +181 dB re 1μPa at 1m
Maximum applied voltage 1,000 Vrms
Horizontal beam pattern Omni-directional +/- 1dB @ Hz
Vertical beam pattern  
Mechanical Specification
Dimensions Outer diameter: 94mm, Height: 24.6mm
Minimum operating depth 100m
Recommended operating depth 50m
Operating temperature range -5 to +35°C
Cable 10m standard. Optional extension is available
Connector Bare ends
Mechanical Drawing



Horizontal Beam Pattern @ 4KHz