H23-100

H23-100 is a H23 series, hydrophone. This hydrophone is designed to be small, versatile, self-amplified, and shielded for a wide variety of underwater acoustic measurements. Ruggedness, low cost and an ultra low-noise internal amplifier are prime features of this unit. It provides a flat response and are omnidirectional over a wide range of frequencies and orientations. The internal amplifier eliminates triboelectric cable noise, connector contamination problems and the requirement for an expensive inline amplifier. The hydrophone and cable entry are completely encapsulated in polyurethane to alleviates water intrusion caused by cathodic action. The assembles uses pre-aged piezoelectric (PZT) sensing elements promoting long term stability. It is used in applications such as military surveillance, underwater biological studies, ship noise studies, pump and machinery studies and monitoring of underwater ordnance.

• Nominal sensitivity is -178dB re 1V/µPa
• Nominal voltage sensitivity is 1.26mV/Pa
• Supply voltage range from 18 to 24VDC
• 4 to 10mA supply current
• 10VDC nominal bias output voltage
• Operating static pressure is 1000PSI max (680m sea water depth)
• Polyurethane jack material, nominal noise is 33dB at (1KHz, 23°C, re 1µPa/√Hz)
• Frequency response range from 15Hz to 10KHz at (±2dB, re 100Hz)
• 0.14” dia, twisted shielded pair, 10ft standard length cable
• Operating temperature range from -10°C to +60°C