Torque sensing pulleys and related methods and systems

摘要

An exercise machine includes a frame, a pulley, a first sensor, and a second sensor. The pulley includes an inner hub, an outer hub, and at least one biasing element. The inner hub further includes at least one position indicator. Additionally, the outer hub includes at least one position indicator and may be rotatable relative to the inner hub. The at least one biasing element may bias the outer hub to a first angular position relative to the inner hub. The first sensor may be fixed relative to the frame and positioned to detect the at least one position indicator of the inner hub. The second sensor may also be fixed relative to the frame and positioned to detect the at least one position indicator of the outer hub.