METHOD AND DEVICE FOR CHARACTERISING AN ELECTROMAGNETIC FIELD, AND NON-DESTRUCTIVE INSPECTION METHOD AND DEVICE BY USING AN ELECTROMAGNETIC FIELD

摘要

Characterisation method for characterising an electromagnetic field, comprising a transformation step in which the electromagnetic field (7) to be characterised is passed through a reference material (5) the optical properties of which change under the action of an electromagnetic field, wherein an incident light strikes the reference material (5), giving rise to a resulting light. The characterisation method further comprises a detection step in which an image representative of the electromagnetic field (7) to be characterised is obtained from the resulting light. The invention also relates to a characterisation device associated with the characterisation method, and to a non-destructive inspection method and device.