Sensor with enhanced linearity and acoustic overload point

A system, comprising:

• a first conductive component that is biased at a first direct current (DC) voltage;
• a second conductive component that is biased at a second DC voltage that is opposite in polarity from the first DC voltage;
• a third conductive component;
• and
• a feedback component that:
• generates an amplified version of a signal that has been generated by the third conductive component, wherein the signal corresponds to a movement of at least one of the first conductive component, the second conductive component, or the third conductive component;
• generates an inverted signal comprising an amplified inversion of the signal;
• and
• applies the inverted signal to respective capacitive coupling components that have been connected to the first conductive component and the second conductive component, wherein an output of the system representing the movement comprises the amplified version of the signal and the inverted signal.

A method, comprising:

• biasing, by a system comprising a feedback component, a pair of conductive components at voltages of opposite polarity, wherein the pair of conductive components comprises a first conductive component and a second conductive component;
• buffering, by the system, respective signals that have been capacitively coupled to the pair of conductive components to obtain buffered signals representing a movement of a third conductive component that is enclosed between the pair of conductive components;
• generating, by the system, a sum of the buffered signals and amplifying, by the system, the sum to obtain an amplified sum;
• and
• based on the amplified sum, applying, by the system, negative feedback to the third conductive component.