What are the different stages of the FSA power meter and how do they contribute to accurate power measurement?

The FSA power meter has three main stages: strain gauges, a measurement circuit, and a data processing unit. The strain gauges detect the force applied to the pedals, the measurement circuit converts this force into an electrical signal, and the data processing unit calculates the power output based on the force and cadence. These stages work together to accurately measure power by capturing and analyzing the force exerted during cycling.