A friction tester 10 can measure the friction provided by a surface at a slip speed independent to the speed of travel of the friction tester. The friction tester 10 comprises a vehicle 12 which can travel over a surface 14 at a first speed, and a test element 16, preferably a wheel, is driven to a second speed, preferably by a hydraulic and/or electric motor 18, and a measuring device 24. The second speed is independently controllable relative to the first speed; test element 16 is engaged with the surface 14; and the first and second speeds are different so that the test element 16 slips over the surface with a slip speed, which is equal to the difference between the first and second speeds. The friction properties of the surface can be calculated by data from the measuring device 24. A liquid delivery system 28 may be provided for wetting the surface 14 in front of the test element 16.


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    Title :

    Friction Tester


    Contributors:

    Publication date :

    2016-04-27


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    English


    Classification :

    IPC:    B60T Bremsanlagen für Fahrzeuge oder Teile davon , VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF / G01N Untersuchen oder Analysieren von Stoffen durch Bestimmen ihrer chemischen oder physikalischen Eigenschaften , INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES



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