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Ergometers

  • US 4,141,248 A
  • Filed: 06/28/1977
  • Issued: 02/27/1979
  • Est. Priority Date: 07/01/1976
  • Status: Expired due to Term
First Claim
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1. In an ergometer having a driving machine, said machine including drive means for producing a rotational movement, said drive means including a rotatable drive shaft and force application means connected to said shaft and adapted to be directly engaged by a user for setting said drive means in rotational motion, a load device comprising a generator connected to the driving machine, a load connected to the output of the generator and a regulator controlling the electrical power dissipation of the load device on the basis of a comparison between a given nominal value produced by a nominal value transmitter and an actual value produced by an actual value transmitter, the improvement wherein said actual value transmitter comprises a first measurement transducer means directly coupled to said force application means of said drive means for determining the torque exerted by the user on said force application means of said drive means and for converting the measured torque into a first electrical signal, a second measurement transducer means for determining the speed of a component upon which the measured torque is applied and for converting the speed into a second electrical signal, and a multiplier means connected to said first and second measurement transducer means for forming the product of said first and second electrical signals representing the actual value of the power transmitted to said force application means by the user.

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