Hydrophone Sensor System for Simultaneous Pressure and Acceleration Detection

The patent combines pressure detection and particle motion detection into a single hydrophone sensor by utilizing different output signals from the same piezoelectric element. The in-phase output detects pressure while the out-of-phase output detects particle motion, eliminating the need for separate hydrophone and geophone sensors.

The hydrophone sensor is designed to perform multiple functions simultaneously - it detects both pressure variations and particle motion through its dual output configuration. This multi-functional approach replaces the traditional need for two separate sensor types with a single universal sensor that accomplishes both measurement tasks.

The patent segments the hydrophone's output signal into two distinct components: an in-phase signal that represents pure pressure information and an out-of-phase signal that represents particle motion. This segmentation allows the pressure measurement to be isolated from vibration noise by selectively using only the in-phase component for pressure analysis.

The patent converts the previously harmful vibration noise into useful particle motion information by capturing it in the out-of-phase output channel. What was once considered interference (vibration noise) is now systematically measured and can be used for additional geological information or filtered if needed, while the in-phase channel provides clean pressure data.