A crank measurement system includes four bend-sensing strain gauges located on one surface of a crank and oriented parallel to a neutral axis of the crank to sense bend strain induced in the crank. Two of the bend-sensing strain gauges are located above the neutral axis, and the other two bend-sensing strain gauges are located below the neutral axis. The system also includes two shear-sensing strain gauges located on the one surface and oriented to sense shear strain induced in the crank. The shear-sensing strain gauges are located on opposite sides of the neutral axis. The system may also include up to four axial-sensing strain gauges located on the one surface and oriented to sense axial strain induced in the crank. An electronics module receives strain data from the strain gauges, and determines from the strain data one or more of force, torque, and power applied to the crank.


    Access

    Download


    Export, share and cite



    Title :

    Crank measurement system with improved strain gauge installation



    Publication date :

    2021-06-15


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    English


    Classification :

    IPC:    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 / A61B DIAGNOSIS , Diagnostik / 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



    A CRANK MEASUREMENT SYSTEM WITH IMPROVED STRAIN GAUGE INSTALLATION

    WAKEHAM KEITH / FYFE KIPLING WILLIAM / CHAN BILLY CHEUK WAI et al. | European Patent Office | 2022

    Free access

    Bicycle crank arm with strain gauge

    CHEN CHENG-HO | European Patent Office | 2019

    Free access

    Improved bicycle crank set

    SIMON SHARP | European Patent Office | 2016

    Free access

    STRAIN GAUGE SENSOR APPARATUS AND ASSOCIATED INSTALLATION METHOD

    JENN PAUL | European Patent Office | 2020

    Free access

    Crank and pedal quick installation mechanism for children bicycle

    WU BAOWEI | European Patent Office | 2015

    Free access