In Hydrophones & Projectors

Hydrophone/Projector TD0280



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Hydrophone Projector TD0280

The Colmar TD0280 is a mid-high frequency spherical hydrophone/projector, suitable for a wide range of applications. As a receiver the frequency usable limits are 5Hz—90kHz., a pre-amplifier is recommended in order to enhance the S/N ratio and make the cable attenuation negligible. As a transmitter TD0280 offers omnidirectional pattern over the transmission resonant frequency bandwidth.


• Omnidirectional, mid-high frequency hydrophone/projector. Usable over a wide frequency bandwidht, up to 90kHz
• Suitable for tank and free field calibrations
• Sensitivity unaffected by hydrostatic pressure down to the recommended depth
• Custom cable lenght and connector type
• High materials quality

Technical specifications

Outside diameter : 30.0 mm (over insulation)

Molding material : Polyurethane

Cable Type: 50 Ohm Coax with internal kevlar reinforce ment and external poliurethane jacket

Resonance frequency at constant voltage : 64.3 kHz (nominal)

Receiving sensitivity with 8m cable : -196 dB //volt/μPa

Horizontal beam pattern : Omni ± 1.5 dB @64kHz

Source Level at resonance frequency : 147 dB// μPa/volt @1 m

Crushing depth : 5300 meters

Maximum operating depth : 3600 meters (need special cable)

Capacitance (at 1 kHz) : 12,75 nF (with cable 8m long)

Conductance at resonance : 8.07 mS

Susceptance at resonance : 3.15 mS (with cable 8m long)

Working temperature: -5°C / + 80°C

Accessories and optional configurations

• Cable lenght and connector termination by choice

Hydrophone/Projector TD0280 Download

Product sheet – Hydrophone/Projector TD0280