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CR3 Hydrophone
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CR3 model
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« hydrophones « CR3 model

NEW!

New Omnidirectional hydrophone !

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


Linear Frequency Range (±3dB) [kHz] 0.0004† to 77
Useable Frequency Range (+3/-12dB) [kHz] 0.0001† to 240
Transducer Sensitivity [dB, re 1V/µPa] -210‡
Preamplifier Gain [dB] N/A
SPL Equiv. Self Noise at 1kHz [dB, re 1µPa/√Hz] 57
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 connector
(longer cable optional)
Directionality omnidirectional

Battery / Connector box

 power not required

† Requires a preamplifier with 100MOhms input impedance, such as the Reson VP1000 (PDF) or Reson VP2000 (PDF) preamplifiers. If a preamplifier with 1MOhms input impedance is used, such as thePC200 (PDF), 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.

Reson VP2000 preamplifier
Reson VP1000 preamplifier		 Options


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 image of cr3 hydrophone - rollover to view medium sized image - click to see large image
CR3 hydrophone

plot of CR3 frequency response - rollover to view medium sized image - click to see large image
CR3 frequency response

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CR3 hydrophone horizontal beam pattern		 plot of CR3 vertical beam pattern - rollover to view medium sized image - click to see large image
CR3 hydrophone vertical beam pattern



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