An apparatus, comprising: a first hydrophone sensor having a first piezoelectric material and a first housing structure ; a second hydrophone sensor having a second piezoelectric material and a second housing structure ; a first pair of wires configured to provide a first differential voltage, wherein a first one of the first pair of wires is coupled to the first housing structure and a second one of the first pair of wires is coupled to the first piezoelectric material; a second pair of wires configured to provide a second differential voltage, wherein a first one of the second pair of wires is coupled to the second housing structure and a second one of the second pair of wires is coupled to the second piezoelectric material; a first voltage divider configured to adjust the first differential voltage provided by the first pair of wires, wherein the first voltage divider includes a first variable resistor configured to facilitate adjustment of the first differential voltage; and a second voltage divider configured to adjust the second differential voltage provided by the second pair of wires, wherein the second voltage divider includes a second variable resistor configured to facilitate adjustment of the second differential voltage; wherein the apparatus is configured to determine, based on the first and second differential voltages, a pressure and an acceleration experienced by the first and second hydrophone sensors; and wherein the first and second variable resistors are configurable to remove an imbalance between voltages generated by the first and second piezoelectric materials. a first hydrophone sensor having a first piezoelectric material and a first housing structure ; a second hydrophone sensor having a second piezoelectric material and a second housing structure ; a first pair of wires configured to provide a first differential voltage, wherein a first one of the first pair of wires is coupled to the first housing structure and a second one of the first pair of wires is coupled to the first piezoelectric material; a second pair of wires configured to provide a second differential voltage, wherein a first one of the second pair of wires is coupled to the second housing structure and a second one of the second pair of wires is coupled to the second piezoelectric material; a first voltage divider configured to adjust the first differential voltage provided by the first pair of wires, wherein the first voltage divider includes a first variable resistor configured to facilitate adjustment of the first differential voltage; and a second voltage divider configured to adjust the second differential voltage provided by the second pair of wires, wherein the second voltage divider includes a second variable resistor configured to facilitate adjustment of the second differential voltage; wherein the apparatus is configured to determine, based on the first and second differential voltages, a pressure and an acceleration experienced by the first and second hydrophone sensors; and wherein the first and second variable resistors are configurable to remove an imbalance between voltages generated by the first and second piezoelectric materials. <EOS>