How does the measurement principle work and is there a deficit in measuring only one leg´s work?
Measurement principle: ergomo® measures the torsion of the bottom bracket axle. This happens via 2 photo interrupters which are built into the bottom bracket. Both light sensors use 72 points of measurement per rotation to measure the torsion of the axis. The 72 points of measurement (360°/72 = 5°) are provided by perforated discs. These discs are connected tightly with the axis on the inner side of the bottom bracket. Is the axis twisted slightly due to the force pushing down on it, the perforated disc shifts in the same way. This shift in position is measured through the affore mentioned 72 points of measurement. So you see: the further the shift, the further the torsion meaning more pedalpower. With the simple formula of physics: Force = Pedalpower * Frequency one can easily measure the workload in watts during cycling. Through the forces used while cycling and the way these forces are measured only the power used on the left pedal can be shown. The left pedalpower is transferred th
