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T38

T38
  • 120 KHZ DUAL BEAM
  • NAVIGATION, FISHING & SURVEYING
  • HIGH PERFOMANCE
  • SCIENTIFIC ECHO SOUNDER
  • HULL OR TOWED BODY
  • ROBUST NYLON HOUSING

The Type T38 is a precision echo sounder transducer designed for use in hydrographic or scientific applications where an accurately defined, narrow beam pattern is required. Operating at 120 kHz the multi-element array is configured to achieve two, highly directional, conical beam patterns with low side lobe levels. 

The transducer enables the beams to be switched between wide and narrow using a beam selection box which can be supplied separately. 

The T38 is available with or without acoustic calibration which is traceable to National Standards.

Technical Specification

Beam Pattern
  • Wide / Narrow
Beam Pattern Horizontal
  • (-3db) 18 Degrees Conical @ Wide
  • (-3db) 10 Degrees Conical @ Narrow
Bandwidth
  • 8 kHz @ Wide
  • 8 kHz @ Narrow
Transmit Sensitivity
  • 170 dB re 1μPa/V 1m @ Wide
  • 174 dB re 1μPa/V 1m @ Narrow
Receive Sensitivity
  • -192 dB re 1VμPa @ Wide
  • -187 dB re 1VμPa @ Narrow
Nominal Impedance
  • 50 Ohms @ Wide
  • 50 Ohms @ Narrow
Transmit Voltage / Duty Cycle (Max)
  • 300 Vrms at 10% @ Wide
  • 400 Vrms at 10% @ Narrow

Mechanical Specification

Operating Temperature
  • -5 to +40 °C
Optional
  • Beam Selection Switch Box
Storage Temperature
  • -40 to +80 °C
Cable Type
  • Ø12mm Polyurethane Jacket, Screened 4 Core
Operating Depth
  • 300m Standard
Cable Length
  • 10 metres standard
  • (Additional lengths supplied to order)
Weight Air/Water (including 10m cable)
  • 6.2kg / 1.3kg
Connector
  • Not fitted as standard
  • (Optional Customer Specific)

Our Company

Formed in 1990, Neptune Sonar is now a leading company in underwater transducer technology, offering one of the world's largest and most comprehensive range of undersea defence and commercial transducers.

Based in the UK, our research and manufacturing operation is located on a 25-acre site in East Yorkshire. With a 60,000 square metre trials lake and a floating calibration laboratory, the site provides an extensive range of facilities supporting every aspect of acoustic transducer development from modelling and design to final product acceptance.

Neptune Sonar Limited
Kelk Lake
Kelk
East Yorkshire
YO25 8HG

T: 01262 490234
E: sales@neptune-sonar.co.uk
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We design, manufacture and test acoustic sensors and electronics for...

  • Naval Defense
  • Maritime Security
  • Offshore Oil & Gas
  • Hydrographic Survey Industry
  • Oceanographic Science
  • Environmental Sectors
  • Aquaculture