Benders

Low-frequency sound projector

GeoSpectrum’s M21 benders, or flexural disk transducers, are highly versatile underwater acoustic projectors that produce moderate power over broadband and high power near resonance. M21’s come in a variety of sizes serving a wide range of resonance frequencies and bandwidths. GeoSpectrum can custom design M21’s to be tailored for each customer’s unique requirements such as resonance frequency, bandwidth, or depth capability.

M21’s are excellent options to be combined into multi-bender sources that are highly customizable to a customer’s requirement. M21’s can be used in a Modular Project System (MPS) to produce greater power and bandwidth at even lower frequencies, or in conventional arrays to produce a directive, high-power source.

Individual M21’s can be custom designed to achieve resonance frequencies ranging from 400 Hz to 12 kHz and higher. A selection of standard M21 designs are also available.

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Description

GeoSpectrum’s benders can be used for a variety of different low-frequency applications, including, but not limited to subsea communication, long range data transmission, and active sonar. GeoSpectrum’s ability to customize both individual benders and multi-bender sources gives the M21 product family the ability to meet a wide range of requirements and applications.
Model Number
Resonance Frequency
(Hz)
Max Depth
(m)
Weight
(kg)
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M21-203-500
500
80
3
M21-203-500
M21-203-900
900
190
4
M21-203-900
M21-203-1400
1400
400
5
M21-203-1400
M21-100-2000
2000
270
0.5
M21-100-2000
M21-100-3000
3000
500
1.1
M21-100-3000
M21-070-5000
5000
700
0.6
M21-070-5000

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