CR3 Hydrophone
The Cetacean Research™ CR3 hydrophone is an omnidirectional hydrophone.
- Cetacean Research™ CR3 hydrophone
Cetacean Research™ CR3 hydrophone with cable
- Cetacean Research™ CR3 Hydrophone
Close-up of the Cetacean Research™ CR3 hydrophone.
- CR3 hydrophone frequency response
Plot of Cetacean Research™ CR3 hydrophone frequency response - log scale.
- CR3 hydrophone beam - horizontal
Horizontal Beam Pattern - 50kHz Cetacean Research™ CR3 hydrophone.
- CR3 hydrophone beam - vertical
Vertical Beam Pattern - 50kHz Cetacean Research™ CR3 hydrophone.
| Linear Frequency Range (±3dB) [kHz] | 0.0004† to 180 |
|---|---|
| Usable Frequency Range (+3/-12dB) [kHz] | 0.0001† to 240 |
| Transducer Sensitivity [dB, re 1V/µPa] | -207‡ |
| Preamplifier Gain [dB] | N/A |
| SPL Equiv. Self Noise at 1kHz [dB, re 1µPa/√Hz] | 54 |
| Power Requirement [Vdc] | N/A |
| RMS Overload Acoustic Pressure [dB, re 1µPa] | N/A |
| Maximum Operating Depth [m] | 980 |
| Operating Temperature Range [°C] | -40 to 90‡ |
| Capacitance [nF] | 6.7 |
| 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 100MΩ input impedance, such as the Reson VP1000 or Reson VP2000 preamplifiers. If a typical preamplifier with 1MΩ input impedance is used then the low frequency -3dB point will be at 40Hz instead of 0.4Hz and the -20dB point will be at 4Hz instead of 0.4Hz.
‡ CR3 hydrophones are individually spot calibrated at the factory; calibration guaranteed between -5ºC and 30ºC.
‡ 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 Reson VP1000 or Reson VP2000preamplifiers
