| 摘要 |
<p>There is described a torque sensing system for a bicycle (1) having a pair of pedals (8) mounted at respective ends of a pedal shaft (18), and a drive sprocket (12) mounted to the pedal shaft adjacent one end thereof, the torque sensing system comprising first and second encoders (5, 9) mounted at spaced locations for rotation with the pedal shaft and sprocket, respective first and second detectors (4, 16) for sensing angularly spaced points on the said first and second encoders, and control circuitry for receiving input signals from said first and second detectors, the control circuitry being operable to determine the relative angular positions of the first and second encoders and to determine a torque value based on the determined relative angular positions of the first and second encoders.</p> |
