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Product introduction
The TDH-42 low-noise hydrophone is a streamlined cylindrical structure device designed specifically for deep-sea acoustic monitoring. Its self-noise level is lower than the zero level sea state background noise, and it can be adapted to two piezoelectric ceramic units with different pressure depths. It has an ultra wideband horizontal omnidirectional response of 10Hz-80kHz and currently supports preamplifiers up to 60dB. The hydrophone is capable of long-term stable operation in the depths of 4500 meters or 6800 meters underwater. Its fluid dynamics optimization design significantly reduces resistance and turbulent noise, making it suitable for high-sensitivity acoustic signal acquisition scenarios such as marine biological observation, seabed exploration, underwater communication, and ship noise monitoring.
Main application scenarios
- Noise measurement and marine bioacoustics
- Surface waves, ocean turbulence, ocean fluid dynamics, and ocean geophysics
- Passive acoustic monitoring
- Self-contained measuring instruments: sonar buoys, recorders, acoustic release devices, etc.
- Wave height sensors, wave and tide sensors/recorders
- Coastal/nearshore evolution, engineering and management, wave structure interaction
- Urban pipeline leakage detection
Technical specification
Sensitivity @1kHz: -182 dB V/μPa ±2dB
Band width: 10Hz~80kHz
Standard Pre-amplifier: 20dB (Optional 10 - 60dB)
Output type: Differential output (Single end output)
Max working depth: 4500 meters (6800m optional)
Size: Φ 28x140mm
Weight: ≤ 310g
Material: 316 stainless steel (or titanium alloy), acoustic material
Power supply: 5~24V
Operating temperature: -10°C ~ +60°C
Storage temperature: -20 °C ~ +60 °C
SENSITIVITY CURVE
OUTLINE DIMENSIONS
