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T141

T141
  • DUAL FREQUENCY 33 & 210 KHZ
  • DUAL BEAM 210 KHZ
  • SHALLOW WATER SURVEYING
  • OVER-SIDE OR HULL MOUNTING
  • FULLY OVER-MOULDED
  • HIGH PERFORMANCE / LOW COST

The T141 is both a dual-frequency and dual beam transducer and is fully compatible with many OEM hydrographic echo-sounder systems. The over-moulded polyurethane housing provides a mechanically robust, corrosion-free transducer for over-side or hull mounting.

The beam is selected by the supplied switch box, which contains the tuning transformers for both frequencies. Electrical connection to the transducer is by a multi-core screened cable.

Transducer impedance can be adjusted to suit the customer's specification.

The T141 is available with or without acoustic calibration which is traceable to National Standards.

Technical Specification

Resonant Frequency (Nominal)
  • 33/210kHz
Beam Angle (-3db)
  • 22 degrees @ 33kHz
  • 8 degrees @ 210kHz - Wide
  • 2 degrees @210kHz - Narrow
Bandwidth
  • 4kHz @ 33kHz
  • 7.5kHz @ 210kHz - Wide
  • 8kHz @ 210kHz - Narrow
Transmit Sensitivity
  • 166 dB re 1μPa/V 1m @ 33kHz
  • 173 dB re 1μPa/V 1m @ 210kHz - Wide
  • 178 dB re 1μPa/V 1m @210kHz - Narrow
Receive Sensitivity
  • -178 dB re 1V/μPa @33kHz
  • -187 dB re 1V/μPa @ 210kHz - Wide
  • -183 dB re 1V/μPa @210kHz - Narrow
Nominal Impedance
  • 100 Ohms @ 33 & 210 kHz
Transmit Voltage / Duty Cycle (Max)
  • 325 Vrms at 10% @ 33kHz
  • 300 Vrms at 10% @210kHz - Wide
  • 400 Vrms at 10% @210kHz - Narrow

Mechanical Specification

Storage Temperature
  • -40 to +80 °C
Cable Type
  • Ø11mm Polyvinyl Chloride Jacket, Screened 6 Core
Operating Depth
  • 300m Standard
Cable Length
  • 10 metres standard
  • (Additional lengths supplied to order)
Weight Air/Water (including 10m cable)
  • 12.3 kg / 13.6 kg
Connector
  • Not fitted as standard
  • (Optional Customer Specific)
Operating Temperature
  • -5 to +40 °C
Optional
  • Beam Selection Switch Box

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