DE2629516
An improved ergometer having a driving machine for producing a rotational movement and set in motion by the user is disclosed. The ergometer includes a load device comprising a generator connected to the driving machine, a load connected to the generator output and a regulator which controls the ele...
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Format: | Patent |
Sprache: | eng |
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Zusammenfassung: | An improved ergometer having a driving machine for producing a rotational movement and set in motion by the user is disclosed. The ergometer includes a load device comprising a generator connected to the driving machine, a load connected to the generator output and a regulator which controls the electrical power dissipation of the load device based on a comparison between an actual value produced by an actual value transmitter and a given nominal value produced by a nominal value transmitter. The actual value transmitter comprises two measurement transducers the outputs of which are connected to the inputs of a multiplier. A first transducer, which is in the form of a wire strain gauge attached to an elastically deformable element of the driving machine, such as a foot pedal, measures the torque exerted by the user on the foot pedal and produces an output signal representing the measured torque. The second transducer comprises a tachometer which measures the rotational speed of the driving machine upon which the user applies a torque and produces an output signal representing the measured speed. The output of the multiplier thus represents the power transmitted to the driving machine by the user without the need to proportion the power dissipation between electrical and mechanical power losses. |
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