CR3 Hydrophone

Cetacean Research Technology

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CR3 model prototype

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« hydrophones « CR3 model

New Omnidirectional hydrophones !

The Cetacean Research™ CR3 Hydrophone is a new omnidirectional hydrophone.

PRELIMINARY SPECIFICATIONS

Linear Frequency Range (±3dB) [kHz]		0.0004† to 125
Useable Frequency Range (+3/-20dB) [kHz]		0.0001† to 250
Sensitivity [dB, re 1V/µPa]		-209
Preamplifier Gain [dB]		N/A
SPL Equiv. Self Noise at 1kHz [dB, re 1µPa]		TBD
Power Requirement [Vdc]		N/A
RMS Overload Acoustic Pressure [dB, re 1µPa]		N/A
Maximum Operating Depth [m]		250
Operating Temperature Range [ºC]		-40 to 90††
Capacitance [nF]		4.0
Dimensions [mm]		50 L x 18 dia
Coaxial Cable Length [m]		15 Cable terminated with male BNC or mono phone plug connector (longer cable optional)
Directionality		omnidirectional
Battery / Connector box		power not required
† Requires a preamplifier with 100M input impedance, such as the Reson VP1000 (PDF) or Reson VP2000 (PDF) preamplifiers. If a preamplifier with 1M input impedance is used, then the low frequency -3dB point will be at 60Hz instead of 0.6Hz and the -20dB point will be at 6Hz instead of 0.1Hz. ††CR3 hydrophones are individually spot calibrated at the factory; calibration guaranteed between -5ºC and 30ºC.

Options

extra length ruggedized cable
custom orders not listed above
hydrophone may be used with either the optional Reson VP1000 (PDF) or Reson VP2000 (PDF) preamplifiers.

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CR3 hydrophone prototype

Tools for Research, Education, & Conservation since 1994

Cetacean Research Technology
4728 12th Ave. NE - Seattle, WA 98105 USA

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