Cetacean Research Technology™ C55

Normalmente fornito con un cavo di 30 metri, la scatola di alimentazione e il connettore per l'uscita a livello MICROFONO (che andrà, ad esempio, a un registratore)

Questo è il sistema adatto per il professionista che vuole lasciare aperta una porta allo studio delle alte frequenze. Ha un cavo intercambiabile.
La sensibilità è lineare fino ai 60kHz, e poi, dopo una attenuazione dovuta a cancellazione di fase sulla ceramica, risale lineare dai 100kHz ai 250 kHz.

Sensibilità:
C55: -166dB,
piatta (+1/-3dB) dai 20Hz ai 39kHz
dai 12Hz ai 85kHz: -12dB
dai 7Hz ai 310kHz: -20dB
<4Hz to >800kHz: -30dB

Sensibilità del trasduttore: -185dB re1V/uPa
Guadagno del preamplificatore: 20dB
Rumore elettronico SPL equivalente (Self Noise): 58dB re1V/uPa at 1kHz
Trasduttore cilindrico
Massima profondità operativa: 460 metri
Temperature operative: -40C...+60C
Impedenza di uscita: 2.5 ohm
Connettore integrato: Subconn MCBH3MSS
tutte le sensibilità sono riferite a 1V/mPa e includono il guadagno del preamplificatore




The Cetacean Research™ C55 and C55RS models are preamplified, cylindrical hydrophones designed for the detection of infrasonic, audible, and ultrasonic sounds. In addition to typical underwater use, these hydrophones can also be used for the detection of airborne and subterranean sounds and vibrations.  The C55 and C55RS hydrophones include an integral connector and are encapsulated in a very rugged polyurethane material. The hydrophones are not individually calibrated but calibrated frequency response measurements can be performed on request.








C55(1)

C55RS(2)
Linear Frequency Range (±3dB) [kHz]
0.016 to 44
0.016 to 50 & 122 to 250+
Usable Frequency Range (+3/-20dB) [kHz]
0.006 to 203
0.006 to 82 & 92 to 250+
Transducer Sensitivity* [dB, re 1V/µPa]
-185
-200
Preamplifier Gain [dB]
20
20
Effective Sensitivity* [dB, re 1V/µPa]
-165
-180
SPL Equiv. Self Noise at 1kHz [dB, re 1µPa]
42 (< Sea State Zero)
58
Power Requirement [Vdc]
5 to 32
5 to 32
RMS Overload Acoustic Pressure [dB, re 1µPa]
169 to 186
184 to 201
Maximum Operating Depth ** [m]
460
460
Operating Temperature Range [ºC]
-40 to 60
-40 to 60
Output Impedance []
2.5
2.5
Dimensions [mm]
119 L x (25 to 16) dia.
119 L x (25 to 16) dia.
Integral Connector ***
Subconn MCBH3MSS
Subconn MCBH3MSS

(1) The C55 hydrophone is a direct replacement for the C54XRS.
(2) The C55RS hydrophone is a direct replacement for the C54XR.
*  Transducer Sensitivity + Preamplifier Gain = Effective Sensitivity.
**  1,000 meter versions are available. Append "-1k" to the model number to order a hydrophone with a depth rating >1,000 meters.
*** Connectors are rated to a depth of 7,000 meters; see below for mating connector and cables.


Shielded Cable Length [m]
• mating connector molded to 15, 30, or 50 [m] shielded cable
• other lengths available on a custom order basis
• cable includes Integral Connector rated to a depth of 7,000 meters.
Battery / Connector box
Battery boxes are rated NEMA-4X water resistant. Standard signal connection for the Cetacean Research™ C55 hydrophone is through a watertight female BNC connector. The hydrophones are powered by a single 9V battery (not included).
Signal Output

Female BNC connector
Battery Life [hours]
> 20
Box Dimensions [mm]
98 long x 64 wide x 40 high
Directionality
• omnidirectional below 10kHz;
• very directional at high frequencies (e.g., ~15º solid angle at 200 kHz, 3dB);
• directionality focused in a plane.
Options
• removable in-line high-pass filter
• external power supply support
• custom orders not listed above





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C55 hydrophones
product photo

clear area


C55 product photo


C55 box


C55 frequency response


C55RS frequency response