Sensor system for measuring acceleration and pressure

An apparatus, comprising:

• a first hydrophone sensor having a first piezoelectric material;
• a second hydrophone sensor having a second piezoelectric material, wherein the first and second piezoelectric materials are configured to provided voltages in response to being stressed;
• and
• a calibration circuit coupled to the first piezoelectric material and configured to adjust a voltage produced by the first piezoelectric material to match a voltage produced by the second piezoelectric material when the first and second piezoelectric materials are subjected to an acceleration;
• and
• wherein the voltages provided in response to being stressed are indicative of an acceleration and a pressure experienced by the first and second piezoelectric materials.

An apparatus, comprising:

• a set of hydrophone sensor pairs configured to facilitate a measuring of acceleration and pressure, wherein the set of hydrophone sensor pairs includes respective first and second piezoelectric sensors;
• a first amplifier coupled to the respective first piezoelectric sensors, wherein the first amplifier is configured to produce a first voltage;
• a second amplifier coupled to the respective second piezoelectric sensors, wherein the second amplifier is configured to produce a second voltage;
• and
• wherein the apparatus is operable to derive an acceleration and a pressure based on the first and second voltages.