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Precision Acoustics

Membrane hydrophones

Precision Acoustics’ manufactures high-quality co-planar membrane hydrophones which have been developed to satisfy the stringent requirements of MHz ultrasound measurements.

The differential membrane hydrophone model is suited to the most demanding, wide bandwidth measurements situations but requires water with very low conductivity.

The differential input preamplifier is embedded in the hydrophone ring, and the electrode pattern on the membrane has been re-designed to ensure an asymmetrical electrode area. The result is an improvement in the signal-to-noise ratio to allow membrane hydrophones based on 9 µm to measure harmonic components in excess of 120 MHz

The UT model of membrane hydrophone is the product of choice for broad bandwidth measurements where water quality cannot be guaranteed.

They can be used on its own or in conjunction with Precision Acoustics’ signal amplifier to reduce noise and add a limited amount of gain over a wide bandwidth. For additional gain the membrane hydrophone can also be used with the hydrophone booster amplifier to add 28 dB of gain.

signal amplifier

Signal amplifier

Optional item to the basic membrane hydrophone measurement system, designed to reduce noise and amplify the signal from a Precision Acoustics UT series membrane hydrophone.

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