Hand-held underwater distance measurement device
Helical magnetostrictive core line hydrophone
Hermetically sealed ultrasonic transducer system
High density pixel array
High dynamic compliance hydrophone with hydrostatic pressure bal
High efficiency broadband directional sonar transducer
High efficiency long lifetime sparker sources
High performance extended fiber optic hydrophone
High power, motor driven underwater acoustic transducer
High pressure transducer
High pressure, high frequency reciprocal transducer
High resolution geophone
High security ultrasonic receiver apparatus
High sensitivity accelerometer for crossed dipoles acoustic sens
High sensitivity fiber optic hydrophone
High-frequency borehole seismic source
High-gain directional transducer array
High-power transmission acoustic antenna
High-power underwater transducer with improved performance and r
High-resolution seismic acquisition device