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Neptune Sonar - Model D/70 -Spherical Hydrophone
The all moulded construction and inherent strength of the PZT ceramic sphere achieves a robust, light weight, corrosion free design making it the ideal choice as a monitor hydrophone for air gun, boomer and other environments where high levels of shock are experienced. The D/70 is available with or without acoustic calibration, traceable to National Standards.
- OMNI-DIRECTIONAL RESPONSE
- LOW NOISE PERFORMANCE
- ACOUSTIC REFERENCE STANDARD
- BROADBAND OPERATION
- AIR GUN & BOOMER MONITOR
- MARINE MAMMAL AUDIO SENSOR
Resonant Frequency (Nominal): 70 kHz
Useful Frequency Range: 10 Hz to 100 kHz
Beam Pattern: Omni ± 2 dB up to 80 kHz
Transmit Sensitivity: 148 dB re 1μPa/V @ 1m
Receive Sensitivity: -199 dB re 1V/μPa
Capacitance at 1 kHz (with 10m cable): 9,900 pF
Transmit Voltage (Abs. Max): 100 Vrms
Transmit Voltage / Duty Cycle (Max): 100 Vrms @ 10%, 30 Vrms @ 100%
Connector: Not fitted as standard, (Optional BNC or Customer Specific)
Operating Temperature: -5 to +40 °C
Storage Temperature: -40 to +80 °C
Cable Type: Polyurethane Ø7mm Low Noise Coaxial, (Optional Ø7mm Polyurethane Screened Twisted Pair)
Operating Depth: 900m Standard, (Optional 1500m – may require an export license)
Cable Length: 10 metres standard, (Additional lengths supplied to order)
Weight Air/Water (including 10m cable): 0.64 kg / 0.23 kg