A shaft characterized by its length to diameter ratio being less than about 1.75 having a drive connection at one end where the wall thickness of the shaft is selected to be thick enough to avoid ellipticalization strain error in torsional measurement of less than 5%. One specific application is for a crankset spindle that can be used to measure a cyclist right, left, and total leg torque.


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    Title :

    Shaft minimizing ellipticalization strain error


    Contributors:

    Publication date :

    2022-07-19


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    English


    Classification :

    IPC:    G06F ELECTRIC DIGITAL DATA PROCESSING , Elektrische digitale Datenverarbeitung / B62J Fahrrad- oder Motorradsättel oder -sitze , CYCLE SADDLES OR SEATS / B62M RIDER PROPULSION OF WHEELED VEHICLES OR SLEDGES , Antrieb von Radfahrzeugen oder Schlitten durch den Fahrer / F16C SHAFTS , Wellen / F16D COUPLINGS FOR TRANSMITTING ROTATION , Nicht schaltbare Kupplungen / G01L Messen von Kraft, mechanischer Spannung, Drehmoment, Arbeit, mechanischer Leistung, mechanischem Wirkungsgrad oder des Drucks von Fluiden , MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE



    SHAFT MINIMIZING ELLIPTICALIZATION STRAIN ERROR

    GRASSI MICHAEL | European Patent Office | 2021

    Free access

    Shaft Minimizing Ellipticalization Strain Error

    GRASSI MICHAEL | European Patent Office | 2021

    Free access

    SHAFT MINIMIZING ELLIPTICALIZATION STRAIN ERROR

    GRASSI MICHAEL | European Patent Office | 2019

    Free access