Teledyne Webb Research (TWR)
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TWR APEXModel EM -Current Profiling Float

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Only Teledyne Webb Research offers the APEX - EM, a spinning float that directly measures water motion through induced electromagnetic currents. The measurements determine the speed and direction of moving sea water in fine detail. This data is important for understanding major weather events.

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  • Measures speed and direction of moving water to within a few centimeters per second accuracy
  • Aircraft deployable by parachute
  • Programmable for surface avoidance during extreme weather events
  • Deployment proven EM technology

Hull

  • Aluminum (maximum depth: 2000m) : N/A
  • Carbon Fiber (maximum depth: 2000m) : Standard
  • Glass Sphere (maximum depth: 6000m) : N/A

Communications/Telemetry

  • Argos : N/A
  • Iridium Circuit Switch/RUDICS : Standard
  • Iridium Short Burst Data (SBD) : Optional

Energy

  • Alkaline Batteries : N/A
  • Lithium Primary (Non-Rechargeable) : Standard

Features (Configuration Dependent)

  • Air Deployable : Optional
  • Volunteer Observing Ship (VOS) Package : Optional
  • Ice Avoidance : Optional
  • Surface Temperature : Optional
  • Compensator - Recommended Near Equator : N/A
  • Handles: Optional
  • Wood Shipping Crates (International) : Standard
  • Molded Shipping Crates : Optional

Sensors

  • Conductivity - Temperature - Depth (CTD) : Sea-Bird SBE-41CP
  • Temperature - Depth (TD : N/A
  • Dissolved Oxygen : Aanderaa 4330, RINKO II ARO-FT
  • Fluorometers : WET Labs FLbb (CD)
  • Radiometers: N/A
  • Transmissometer : N/A
  • pH: SBE Float Deep, SeaFETTM
  • Carbon Dioxide : N/A
  • Nutrients: N/A
  • Acoustics: N/A
  • Custom sensor integration : Optional