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Research and innovation | REF: IN148 V1

Innovative force sensor - application for rail and road weighing systems

Authors: Gérard CLAVERIE, Jean-Pierre FORTIN, Bernard GUTFRIND

Publication date: August 10, 2012 | Lire en français

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    Overview

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    AUTHORS

    • Gérard CLAVERIE: CNAM graduate engineer - Expert engineer in scientific instrument design - University of Bordeaux 1, UMR 5797 – CNRS, Centre d'Études Nucléaires de Bordeaux-Gradignan

    • Jean-Pierre FORTIN: Honorary Senior Engineer SNCF - Industrial Consultant in Engineering and Special Mechanical Studies

    • Bernard GUTFRIND: University of Bordeaux 1, Physics Department - Scientific and technical expert for the CNRS

     INTRODUCTION

    Summary

    This innovation is a new concept in load cells, enabling the creation of weighing devices that are particularly well suited to dynamic weighing, but also capable of meeting the needs of static weighing of large-volume objects. A load cell is made from a steel beam. Depending on the application, the beam is either used directly as a load receptor, or as a large-scale load cell within a weighing system.

    Abstract

    This innovation is a new force sensor concept. This new force sensor favors the creation of devices for weighing, particularly adapted to dynamic weighing and also suited to static weighing for large volume objects. A sensor is made with a steel beam. Depending on the requested application, the beam receives directly the load or is inserted into a weighing device as a very long force sensor.

    Keywords

    load cell, dynamic weighing, strength of materials, steel beam, strain gauge, Wheatstone bridge

    Keywords

    force sensor, dynamic weighing, strength of materials, steel beam, strain gage, wheatstone bridge

    Key points

    Field: Measurement techniques

    Degree of technology diffusion: Emergence | Growth | Maturity

    Technologies involved: Extensometer with resistant wire, bonding

    Applications: Rail and road weighing

    Main French players :

    Competitive clusters :

    Center of competence: CNRS, Centre d'Études Nucléaires de Bordeaux – Gradignan, UMR 5797, Université de Bordeaux 1

    Manufacturers :

    Other players worldwide :

    Contact : [email protected] , http://www.cenbg.in2p3.fr

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