Wireless liquid gauging system

A system comprising:

• a wireless pressure sensor for sensing pressure of a liquid in a tank comprising:
• a hermetically sealed housing with at least a portion of the housing having a diaphragm, the hermetically sealed housing forming at least a portion of a hermetically sealed wall of the tank;
• at least one sensor within the hermetically sealed housing configured to sense the pressure of the liquid;
• at least one photocell array configured to receive light and generate power from the light;
• at least one communication device configured to transmit data corresponding to the sensed pressure using wireless radio frequency signals;
• and
• at least one energy storage device configured to store power generated by the at least one photocell array and provide power to the at least one sensor and the at least one communication device;
• and
• a computing device configured to receive the data from the at least one communication device.

A method for sensing a pressure of a liquid of a tank, the method comprising:

• receiving light via a photocell array;
• generating, in response to receiving the light, power from the received light using the photocell array;
• storing power, in response to power being generated, using one or more energy storage devices;
• powering, in response to the power being stored, at least one communication device and at least one sensor;
• receiving a query from a computing device using at least one communication device;
• sensing, in response to receiving the query, the pressure of the liquid of the tank using at least one sensor;
• and
• transmitting, in response to sensing the pressure, data corresponding to the sensed pressure of the liquid using the at least one communication device.