METHODE ET APPAREIL POUR LA MESURE DES CONTRAINTES DANS UN MATERIAU FERROMAGNETIQUE

摘要

Method and apparatus for measuring stresses in a ferromagnetic material are disclosed. A magnetic means is employed to establish magnetic flux flow paths in a ferromagnetic material in two directions at right angles to one another. Additional means is provided for determining the resultant flux flow developed by said paths whereby the magnitude of a stress applied to the material in one of said two directions is ascertained.