Hydophones

Hydrophones are underwater microphones for acoustic measurements. Wilcoxon Sensing Technologies hydrophones are built to withstand the rigors of continuous underwater exposure in both sea water and fresh water environments. Each hydrophone uses piezoelectric crystals with a built-in electronic amplifier, to boost the low level signal of pressure waves underwater signals. The output is a dynamic AC signal superimposed upon the DC Bias Output Voltage (BOV).

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Product Description

Typical applications
Monitoring of underwater ordinance
Ship noise studies
Underwater biological studies
Pump and machinery studies
H505L hydrophone
The H505L hydrophone is designed as a small, versatile, self-amplified hydrophone for use in a wide variety of underwater acoustic measurements. Ruggedness, low cost and an ultra low-noise internal amplifier are prime features of this model. The internal amplifier eliminates triboelectric cable noise, connector contamination problems and the requirement for an expensive in-line amplifier. The hydrophone and cable entry are completely encapsulated in polyurethane, preventing water intrusion caused by cathodic action. The assembly uses preaged piezoelectric (PZT) sensing elements.

Sensitivity tolerance: -160.0 dB re 1V/µPa
Low frequency: 2.0 Hz (120 CPM)
High frequency: 10.0 kHz (600 kCPM)
Maximum temperature: 80°C
Designed to military specifications

Hydrophone models and specifications

General purpose hydrophone H505L

Ultra low-noise wide band hydrophone H507A

Low acceleration sensitivity hydrophone H601

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