System and Method for Pressure Compensation in a Pump

A method, comprising:

• receiving a pressure of a fluid in a chamber of a pumping apparatus from a sensor at a controller coupled to the sensor and to a pump, wherein the controller comprises a processor and a memory storing a set of instructions for:
• determining if the pressure in the chamber is above a desired pressure;
• moving the pump of the pumping apparatus to increase the volume of the chamber to compensate for the pressure increase if the pressure in the chamber is above a desired pressure;
• and
• sending a signal to the pump to dispense fluid from the chamber, wherein the determination and movement are repeated to maintain substantially the desired pressure until the dispense of fluid is initiated.

A non-transitory computer readable medium, comprising instructions for:

• receiving a pressure of a fluid in a chamber of a pumping apparatus from a sensor at a controller coupled to the sensor and to a pump;
• determining if the pressure in the chamber is above a desired pressure;
• moving the pump of the pumping apparatus to increase the volume of the chamber to compensate for the pressure increase if the pressure in the chamber is above a desired pressure;
• and
• sending a signal to the pump to dispense fluid from the chamber, wherein the determination and movement are repeated to maintain substantially the desired pressure until the dispense of fluid is initiated.