A gap compensated torque sensing system and methods for using the same are provided. The system can include a magnetostrictive torque sensor and at least one proximity sensor in communication with a controller. The proximity sensor can be substantially rigidly coupled to a sensor head of the torque sensor, either contained within the sensor head or mounted proximate to the sensor head using a bracket or other coupling mechanism. The torque sensor can sense magnetic flux passing through the target and the proximity sensor can measure a gap between itself and the target. The controller can estimate torque applied to the target from magnetic flux sensed by the torque sensor. The estimated torque can be modified by the gap measurement to compensate for changes in magnetic properties of the target due to variations in the gap. In this manner, the accuracy of the torque measurements can be increased.


    Access

    Download


    Export, share and cite



    Title :

    Integration of proximity sensors with magnetostrictive torque sensors


    Contributors:

    Publication date :

    2020-06-16


    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 / B62D MOTOR VEHICLES , Motorfahrzeuge / H01L Halbleiterbauelemente , SEMICONDUCTOR DEVICES



    Magnetostrictive Torque Sensors — Analysis of Performance Limits

    Fleming, William J. | SAE Technical Papers | 1989


    Magnetostrictive Torque Sensors — Derivation of Transducer Model

    Fleming, William J. | SAE Technical Papers | 1989


    Magnetostrictive torque sensors - Derivation of transducer model

    Fleming,W.J. / TRW Vehicle Safety Systems,Washington,US | Automotive engineering | 1989


    Magnetostrictive torque sensors - Analysis of performance limits

    Fleming,W.J. / TRW Vehicle Safety Systems,Washington,US | Automotive engineering | 1989