Differential Membrane 0.4mm

For MHz ultrasound pressure measurements where wide bandwidth and a smooth frequency response is required, this hydrophone is recommended.


16 micron 0.4mm Differential Membrane Hydrophone – Order Code  D1604

The hydrophone is supplied with a dedicated power supply and has a 50 ohm output.

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: 1.5m long, 5mm diameter, bespoke multi-core cable and connector which connects to the dedicated power supply
Active Sensor Diameter: 0.4mm
Typical Sensitivity: 340 mV/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).

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