Posted in | Acoustic Sensor

MassaSonic® TR-1055 Acoustic Transponder and Beacon for Underwater Communication Systems

The MassaSonic® Model TR-1055 series of underwater transducers were developed for the oceanographic sector for high-power, deep-water transponder applications spanning the frequency range from 8 to 16 kHz.

The transducers use lead zirconate-titanate as the active element contained inside an oil-filled butyl rubber housing, attached to a hard coated (anodic) aluminum mounting flange.

Two types of mounting arrangements are provided to allow coupling the transducer either to a bulkhead (Models TR-1055C and TR-1055F) or a pipe flange (Model TR-1055A). A high pressure seal is provided using an “O” ring located in the transducer flange.

The Model TR-1055 transducers will operate at depths beyond 20,000 feet. A special high pressure rubber cable and flange assembly is provided for mounting the TR-1055C flange when operation with an attached cable is preferred.

Key Features

  • Broadband - From 8 to 16 kHz
  • High power - Up to 1 kW
  • High pressure - Operating depth is over 20,000 ft (6100m)
  • Mounting is available for either a bulkhead or a pipe flange


The main applications of the Massa Model TR-1055 transducers are as follows:

  • Underwater communication
  • Transponders
  • Under water homing and docking
  • Underwater hazard avoidance
  • Underwater acoustic positioning
  • Mark and locate deep sea equipment


The key specifications of the MassaSonic® Model TR-1055 series are as follows:

(Nominal at 12 kHz)
Power Rating 1 kW
Source Level / Watt 169 dB re 1 µPa @ 1 m
Transmitting Response / Volt 133 dB re 1 µPa @ 1 m
Transmitting Response / Amp 193 dB re 1 µPa @ 1 m
Receiving Response -183 dBV / 1 µPa
Bandwidth 8 - 16 kHz
Impedance 1000 Ohms
Beam Angle 40° Conical @ -3 dB
Directivity Hemispherical, Conical
Operating Depth Exceeding 20,000 ft (6100m)
Mounting Type

Pipe Flange (10 lbs./4.5 kg)
Bulkhead (6.5 lbs / 3.5 kg)
Bulkhead (6.5 lbs / 2.5 kg)


Download the DataSheet Here


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