| ITC-1080 Spherical Hydrophone |
Frequency range: 1Hz – 350kHz
Capacitance: 1500pF
Omnidirectional +/- 2dB
6,000 ft operational |
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| BRÜEL & KJAER Type 2713 Power Amplifier |
100V RMS, 1A into Capacitive Load
Frequency
Range
: 10Hz-200kHz
Voltage Gain: 0-60dB in 10 dB steps
Switchable maximum output voltage limits
Circuit protection against overload |
Driving the Standard Hydrophone Type 8100 as a projector
Driving electrostatic actuators at high voltage levels
As general purpose power amplifier for capacitive piezoelectric transducers
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| BRÜEL & KJAER Type 8101 General Purpose Hydrophone |
Frequency range 1Hz-125kHz
Built-in solid-state preamplifier
High sensitivity –184 dBV re 1 uPa (-84dBV re 1ubar)
Each hydrophone individually calibrated
Insert voltage calibration facility
Inherent noise near Wenz’s lowest ambient
Maximum working pressure 40 ato or 400m ocean depth
Working temperature -10 deg C to 65 deg C
Waterproof moulded neoprene construction
Low-noise, low capacitance waterblocked cable to MIL-C-915A |
General purpose underwater sound measurements
Laboratory measurements in liquid and gases
Educational experiments
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| BRÜEL & KJAER Type 8103 Hydrophone |
Very wide frequency range 0.1Hz to 200kHz
Very small size (50x9.5mm)
Double shielded low noise integral cable
Working temperature –40 to 120 degC |
Waterborne sound measurements
Calibration reference standard
Ultrasonic measurements in liquids
Investigation of marine animal noise
Laboratory and industrial measurements in liquids and gases
Sound measurements in water tanks
Underwater projector
Educational experiments
Noise measurements in humid and polluted atmospheres
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| BRÜEL & KJAER Type 8104 Standard Measuring Hydrophone |
Frequency
Range
: 0,1Hz to 125kHz
Sensititvity calibration traceable to NBS
Flat frequency response over wide range
Receiving sensitivity of each hydrophone individually calibrated
Maximum working pressure 40 ato. (400m ocean depth)
Working temperature: -40 to 120 deg. C
Omnidirectional over wide frequency range
Shielded element construction
Monel mounting support for corrosion resistance
Absolutely waterproof moulded neoprene construction
Low-noise low capacitance integral cable to MIL-C-915 A |
Calibration reference standard
Underwater sound measurement
Laboratory measurements and gases
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| BRÜEL & KJAER Type 8105 Standard Measuring Hydrophone |
Frequency
Range
: 0,1 Hz to 160 kHz
Flat frequency response over wide range
Maximum working pressure 100 ato. (1000m ocean depth)
Working temperature: -40 to 120 deg. C
Omnidirectional over full frequency range (at 100 kHz, it is omnidirectional over 360° in the x-y (radial) plane and 270° in the x-z (axial) plane)
Low-noise low capacitance integral cable to MIL-C-915 A |
Underwater sound measurement
Laboratory measurements
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| BRÜEL & KJAER Type 8106 Standard Measuring Hydrophone |
Frequency
Range
: 7 Hz to 80 kHz
Maximum working pressure 100 ato. (1000m ocean depth)
A built-in high-quality, thick-film, low-noise, 10 dB preamplifier provides signal conditioning for transmission over long underwater cables
High sensitivity: 173 dB re 1V/.Pa
Equivalent noise level well below sea-state zero
Working temperature: -10 to 60 deg. C
Omnidirectional over wide frequency range
Durable construction
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Underwater sound measurement
Noise measurements in humid and polluted atmospheres
Laboratory measurements
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| Smith Technology General Purpose Digital Hydrophones |
Frequency response 1 Hz to 80 kHz
Sensitivity : -203 dB re 1 V/uPa
Pre-amplifier: Ch1: 20 dB, Ch2: 80 dB
A/D converter: 24 bit, 192 kHz, dynamic range: 118 dB@1 kHz
connected to and powered over USB2 |
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| Cetacean Research Technology C54 preamplified hydrophone |
Frequency response 14Hz to 60kHz and 100kHz to250kHz
Sensitivity : -165dBV re 1uPa
Maximum depth: >1500m
Omnidirectional in the horizontal plane |
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| Marshall Acoustics four channel towed hydrophone array |
High stength 100 metre salt water and UV resistant signal and power cable
Two hydrodynamic PU moulded and mechanically uncoupled modules
Two high sensitivity embedded preamplified PVDF sensors per module (-160dBVre 1uPa)
Omnidirectional in transverse plane
6th order 10Hz-40kHz band-pass filter
Weight < 70kg
Wheeled on portable stainless steel wheel
4 independant low impedance outputs
2 headphone outputs with independant volume control
Battery
operated |
Acoustic localisation of underwater wideband sound sources
Noise measurements
Education and research tool for underwater sound localisation system development
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