8106  Hydrophone

Usos Calibration reference standards  Ultrasonic measurements in liquids  Cavitation measurements  Laboratory and industrial measurements in liquids and gases  As underwater projectors (8103, 8104 and 8105)  Noise measurements in humid and polluted atmospheres

Características High sensitivity: -173 dB re 1V/μPa Built-in preamplifier with provision for insert-voltage calibration Durable construction Equivalent noise level well below sea-state zero Frequency ranges from 0.1Hz to 80 kHz  Individually calibrated  Flat frequency response over wide range  Omnidirectional over wide frequency range Working pressures up to 9.8 × 106 Pa (100 atm. [1000 m])  Shielded-element construction Highly corrosion resistant

A wide-range, general-purpose transducer for making absolute sound measurements over the frequency range 7Hz to 80 kHz with a receiving sensitivity of −173dB re 1V/μPa. The hydrophone is capable of withstanding high static pressure, the operational upper limit being 107 Pa (100 atm.; 1000 m (3250 ft.) ocean depth). A built-in high-quality, thick-film, low-noise, 10 dB preamplifier provides signal conditioning for transmission over long underwater cables. The preamplifier features a 7Hz high-pass filter and an insert-voltage calibration facility, but does not allow the hydrophone to be used as a projector. An integrated watertight connector allows quick disconnection of the cable and makes replacement and storage very easy.

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