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D/140

D/140
  • OMNI-DIRECTIONAL RESPONSE
  • LOW NOISE PERFORMANCE
  • ACOUSTIC REFERENCE STANDARD
  • BROADBAND OPERATION
  • AIR GUN & BOOMER MONITOR
  • MARINE MAMMAL AUDIO SENSOR

The D/140 is one of a group of spherical transducers exhibiting a combination of broadband frequency response, omni- directional beam pattern and high sensitivity.

The D/140 is available with or without acoustic calibration which is traceable to National Standards.

Technical Specification

Resonant Frequency (Nominal)
  • 150kHz
Useful Frequency Range
  • 20 Hz to 200 kHz
Beam Pattern
  • Omni ± 2dB up to 160kHz
Transmit Sensitivity
  • 148dB re 1µPa/V @ 1m
Receive Sensitivity
  • -207dB re 1V/µPa
Capacitance at 1 kHz (with 10m cable)
  • 3200pF
Transmit Voltage (Max)
  • 100 Vrms
Transmit Voltage / Duty Cycle (Max)
  • 75 Vrms @ 10%
  • 20 Vrms @ 100%

Mechanical Specification

Storage Temperature
  • -40 to +80 °C
Cable Type
  • Polyurethane Ø7mm Low Noise Coaxial
  • (Optional Ø7mm Polyurethane Screened Twisted Pair)
Operating Depth
  • 900m Standard
  • (Optional 1500m - may require an export license)
Cable Length
  • 10 metres standard
  • (Additional lengths supplied to order)
Weight Air/Water (including 10m cable)
  • 0.59 kg / 0.2 kg
Connector
  • Not fitted as standard
  • (Optional BNC or Customer Specific)
Operating Temperature
  • -5 to +40 °C

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