Type 8104 (Calibration Standard Hydrophone)

A wide-range general purpose hydrophone that can also be used as a sound transmitter, making it ideal for calibration purpose. The hydrophone is supplied with 10 m waterblocked low-noise shielded cable to MIL-C-915 with BNC plug. A wide-range standard measuring transducer for making absolute sound measurements over the frequency range 0.1Hz to 120 kHz with a receiving sensitivity of −205 dB re 1V/µPa. Type 8104 Standard Calibration Hydrophone can also be used as a sound transmitter (projector) which makes it ideal for calibration purposes by the reciprocity, calibrated-projector, and comparison methods.

Features

Sensitivity: 0.056 mV/Pa | Lower frequency: 0.1 Hz | Higher frequency: 120 kHz | Maximum operating static pressure: 263–273 dB (4×10^6 Pa) depending on variant | Mounting space: 120 x 21 x 120 mm (4.73 x 0.83 x 4.73 in)

Application

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

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