The T11 is a miniature transducer designed to measure underwater explosive shock levels and pressure transients in fluids.

Used by defence organisations throughout the world, it has become the standard reference hydrophone for the UK Ministry of Defence test ranges.

The hydrophone is based upon a piezoelectric tourmaline crystal connected to a miniature low noise coaxial cable. The crystal and a small length of cable are coated in a special waterproof compound designed to provide a high level of insulation and a fast transient response.

With a rise time of less than 4µsec and a dynamic pressure range of 0-275 MPa this transducer is intended to measure pressure levels and profiles from underwater explosions.

A 15mm diameter underwater compression fitting is provided to seal the cable into the customers instrumentation housing.

Certified transducer calibration based upon a dead-weight tester can be provided on request.