Membrane Hydrophone 0.4mm

For most MHz ultrasound pressure measurements, where wide bandwidth, smooth frequency response and small active area are required, this hydrophone is recommended.


16 micron 0.4mm Membrane Hydrophone – Order Code UT1604

The hydrophone is supplied with a PA submersible preamplifier, which is inserted into the base of the hydrophone mounting ring and provides 8dB of gain and 50 OHM output.  The preamplifier is powered through the DC Coupler from a 28V power supply. (See DC Coupler for more information).

Technical Specifications

Output Impedance: 50 Ohms
Sensor Material: Single layer of 16 micron thick gold PVdF film
Mounting Ring Dimensions: 100mm diameter
10mm thick
Membrane Diameter: 80mm
Cable: The preamplifier is terminated with 1.5m of RG 174 cable and SMC connector which connects to the DC Coupler
Active Sensor Diameter: 0.4mm
Typical Sensitivity: 35mV/MPa averaged in the range 2-20MHz
Sensitivity Tolerance: Sensitivity variation between individual membranes is approximately +/-3dB
Typical Frequency Response: Flat(+/-2dB): over the range 1-30MHz A “flattening amplifier is not required as this hydrophone satisfies IEC standards

* Precision Acoustics reserves the right to change the specification without notice.

Warranty: membranes 12 months against defective product but not damage caused by user. If a warranty claim is made on devices that have been calibrated at NPL, London, a charge will be made for the used part of the calibration (e.g. in the event of failure of a membrane at three months the charge for recalibration at NPL is 25% of the calibration charge).

The membrane hydrophone can be used with the Precision Acoustics Hydrophone Signal Amplifier (Order Code MA2) which reduces noise and applies x5 gain (optional) and is designed to be used with a UT series membrane hydrophone.

Contact Us

If you would like more information about this product please get in touch by phone, email or enquiry form.

+44 (0) 1305 264669

Enquiry Form

  • This field is for validation purposes and should be left unchanged.

Additional information

Product Type

Membrane Hydrophones