Hydrophones
A5 HYDROPHONE
A5 HYDROPHONEDESCRIPTION:
The A5 is a new hydrophone from Aquarian Audio that improves upon the bandwidth and sensitivity of the well-established “H” series hydrophones. Its very small size and standard panel-mounting design with low-profile output connector will make it very useful for integrated systems, such as autonomous recording units, autonomous and remote-operated vehicles, and dive camera enclosures. When fitted with the optional weight and longer cables, it will be equally useful for typical deep-water and field recording applications. The compact and rugged sensor design will be especially useful for leak-finding and other service and industrial sensing operations.
The A5 uses a low-profile 3.5mm TRS output plug that is easy to pass through cable glands or penetrators and allows for the option of adding optional accessories. It is designed to connect directly with standard digital recorders that offer plug-in power on a standard mini jack. It can be powered from one leg of phantom power, as used in microphone preamps with XLR input. However, we recommend using the PIP>XLR adapter for lower noise and true low-impedance, balanced output. NOTE: TRRS jacks, typically used for headsets with cell phones and computers, will require an adapter to break out the separate mic and headphone jacks. The A5 will not work directly with AUX or LINE jacks, such as used on marine stereos and powered speakers, as these will not supply plug-in power and do not offer adequate gain.
Specifications:
- Sensitivity: -173dBV re: 1uPa (-193 sensor + 20dB integrated signal conditioning)
- Linear bandwidth 20Hz – 10KHz (+/-4dB)
- Directivity: Omnidirectional (<20KHz)
- Max depth: 100 meters
- Output connector: 3.5mm TRS (wired dual mono–tip and ring output; sleeve
ground)(5.5mm outside diameter)
- Plug-in Power required (2.4V, 400uA min. 48V, 10mA max–see additional notes about
connections above)
- SEE PRODUCT IMAGES FOR DIMENSIONS AND RESPONSE PLOT
‘Custom length’ price includes 0.5m cable length. For additional cable length, please purchase CA-52 cable separately – see details below.
AS-1 Hydrophone
AS-1 HydrophoneAquarian Scientific
Aquarian Scientific hydrophones are designed for extended frequency response and dynamic range and are intended to be cost-effective measurement tools.
Broadband measurement hydrophone
The AS-1 is designed to provide maximum sensitivity in a small size while also providing a linear response in the bandwidth of the highest-quality commercial digital sound recording interfaces. Response is omnidirectional in the human auditory bandwidth, as well as omnidirectional in the horizontal axis at all frequencies (theoretical). Given these qualities, the AS-1 is well-suited for absolute underwater sound measurements in marine and industrial environments. It can also be used as an omnidirectional reference projector.
Use directly with your scope or DAQ device or use with the PA6 preamp and any digital recorder or sound interface for high-quality, low-cost underwater sound analysis.
Fitted, breathable EVA case included with cable lengths of 20 meters or less (longer cable assemblies will not fit in case and will be bulk shipped in allowable packaging).
- Linear range: 1Hz to 100kHz ±2dB
- Receiving Sensitivity: -208dBV re 1μPa (40μV / Pascal)
- Transmitting Sensitivity: 140dB SPL re 1μPa, 1Vrms input at 1meter, 90kHz
- Maximum Input Voltage: 30V p-p (continuous); 150V p-p (<10% duty cycle, <100KHz)
- Horizontal Directivity(20kHz): ±0.2dB
- Horizontal Directivity (100kHz): ±1dB
- Vertical Directivity (20kHz): ±1dB
- Vertical Directivity (100kHz): +6dB -11dB
- Operating depth: 200m
- Survival depth: 350m
- Operating temperature range: -10°C to +80°C
- Nominal capacitance: 5nF +/- 15% (plus cable @ 118pF/m)
- Output connection: BNC (standard)
- Size: 12mm D x 40mm L
- Weight (in air): 8g (plus cable @ 28g/m)
- Cable length: 9 meters standard. Any length on request.
- Cable Jacket: Polyurethane, OD: 4.5mm
- Encapsulant: Polyurethane
Autonomous Systems
Autonomous SystemsAutonomous Hydrophone Systems and Acoustic Tags
Cetacean Research Technology offers two types of autonomous underwater recording instruments. The first type, manufactured by CRT, is the Remote Underwater Digital Acoustic Recorder (RUDAR™) that includes our newest and easiest-to-use member of the family called the DIVEAR™. The second type is the Acoustimetrics Acousonde™, which is a suction cup attached acoustic tag for cetaceans. All of our autonomous underwater recording systems are designed for easy use and have field replaceable batteries.
C305 Hydrophones
C305 HydrophonesC305 Hydrophones
Cetacean Research™ C305 Hydrophones, shielded versions of the Cetacean Research™ C304XR with a tougher encapsulation, are available for purchase.
The Cetacean Research™ C305 series hydrophones have a directional receive pattern with very wide frequency response for monitoring ultrasonic signals not detectable by competing brands. The connector is an integral part of the hydrophone. Hydrophones are not individually calibrated but calibrated frequency response measurements can be performed on request.
C55 Series Hydrophones
C55 Series Hydrophones
C56 Hydrophone
C56 HydrophoneC56 Hydrophone
Cetacean Research™ C56 modular hydrophones are intended to be connected to as many as five other C56 hydrophones (for a total of 6 channels) on a single cable to form an easy-to-use array. They are an inline version of the Cetacean Research™ C55 hydrophone.
These preamplified, cylindrical hydrophones are 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.
C56 hydrophones include two integral connectors each and are manufactured using superior piezoelectric transducers encapsulated in a very rugged polyurethane. The hydrophones are not individually calibrated but calibrated frequency response measurements can be performed on request.
C57 Hydrophones
C57 HydrophonesC57 Hydrophones
Our new C57 hydrophones are in production and they sound fantastic!
The Cetacean Research™ C57 hydrophone series is an extra rugged version of our very popular C55 hydrophone; with a shape that allows it to be towed behind a boat with less flow noise. The C57 utilizes a slightly softer polyurethane encapsulation material than the C55, which results in even better underwater acoustic performance.
C57-PAS Hydrophone System
C57-PAS Hydrophone SystemHydrophone Systems for Commercial Whale Watching
Cetacean Research Technology produces a selection of hydrophone systems that we routinely suggest for commercial whale watching operations. These hydrophone systems are easy to operate and provide superior audio quality, so your passengers will be able hear all the sounds whales, dolphins, and porpoises produce within the human hearing range.
Model C57-PAS Hydrophone System
For those who want the very best hydrophone system for whale watching, the Cetacean Research™ C57-pas is the system used by National Geographic Explorer / Lindblad Expeditions.
C75 Hydrophone
C75 HydrophoneC75 Hydrophone
The Cetacean Research™ C75 series Hydrophones are our preamplified omnidirectional hydrophone.
Computer Based
Computer BasedHydrophone Systems for Computer-Based Recording
Interested in analyzing your recordings or manipulating the data? Signal analysis tools can be added to all Cetacean Research Technology hydrophone systems. Certain hydrophones pair better with different computer interfaces. There are too many combinations to list, so please see our recommendations below to get a general idea of what we have available. Then contact us and tell us your recording and analysis requirements, and we’ll make recommendations that will work best for you.
CR1 Hydrophone
CR1 HydrophoneCR1 Hydrophone
Cetacean Research™ CR1 hydrophones are excellent multi-purpose hydrophones. The most recent release of the CR1 is the CR1A.
Various uses are detection & recording of very loud signals, listening & recording of quieter sounds like cetaceans, whale watching operations, and terrestrial applications.
- This non-preamplified hydrophone is ideal for the detection and recording of very loud signals; such as those from pile driving, air guns, or underwater demolition operations.
- In addition, the CR1 series can be used with an external preamplifier (such as the ART USB Dual Pre) for recording and listening to the quieter sounds of cetaceans and other underwater sourc
- The CR1 series models also serve very well as a robust hydrophone for whale watching operations when used directly with a battery powered portable amplifier.
- Terrestrial applications for the CR1 series hydrophones include vibration detection and use as a geophone.
The hydrophone comes with an extra tough, flexible coaxial cable. The cables can be terminated with either BNC or mono phone plug connectors. All CR1 series hydrophones are individually spot calibrated at the factory.
CR1 Hydrophone
CR1 HydrophoneCR1 Hydrophone
Cetacean Research™ CR1 hydrophones are excellent multi-purpose hydrophones. The most recent release of the CR1 is the CR1A.
Various uses are detection & recording of very loud signals, listening & recording of quieter sounds like cetaceans, whale watching operations, and terrestrial applications.
- This non-preamplified hydrophone is ideal for the detection and recording of very loud signals; such as those from pile driving, air guns, or underwater demolition operations.
- In addition, the CR1 series can be used with an external preamplifier (such as the ART USB Dual Pre) for recording and listening to the quieter sounds of cetaceans and other underwater sources.
- The CR1 series models also serve very well as a robust hydrophone for whale watching operations when used directly with a battery powered portable amplifier.
- Terrestrial applications for the CR1 series hydrophones include vibration detection and use as a geophone.
The hydrophone comes with an extra tough, flexible coaxial cable. The cables can be terminated with either BNC or mono phone plug connectors. All CR1 series hydrophones are individually spot calibrated at the factory.
CR1-UDP Hydrophone System
CR1-UDP Hydrophone SystemHydrophone Systems for Commercial Whale Watching
Cetacean Research Technology produces a selection of hydrophone systems that we routinely suggest for commercial whale watching operations. These hydrophone systems are easy to operate and provide superior audio quality, so your passengers will be able hear all the sounds whales, dolphins, and porpoises produce within the human hearing range.
Cetacean Research™ CR1-UDP Hydrophone System
Due to its rugged construction and clear audio quality, the Cetacean Research™ CR1-UDP is the recommended hydrophone system for commercial whale watching operators who have a sound system with an auxiliary input on their vessel (if not, we can provide a portable amplified speaker for you).
CR2 Hydrophone
CR2 HydrophoneCR2 Hydrophone
The Cetacean Research™ CR2 hydrophone is ideal for the detection and recording of extremely loud signals.
Examples of such loud sources include close-range dolphin echolocation, high-power sonar, large pile drivers, air gun arrays, and underwater explosions.
Unlike most hydrophones, the Cetacean Research™ CR2 hydrophone transducer is made from a material that is virtually indestructible. The hydrophones are molded to an extra tough, flexible coaxial cable. The cables can be terminated with either BNC or mono phone plug connectors.
Hydrophones are not individually calibrated. Calibrated frequency response measurements can be performed on request.
CR3 Hydrophone
CR3 HydrophoneCR3 Hydrophone
The Cetacean Research™ CR3 hydrophone is an omnidirectional hydrophone.
