HARDY, Florian,ROCHETTE, Maxime,GRENIER, Marc,DEMERS-CARPENTIER, Vincent
申请号：
EP20160204288
公开号：
EP3182113(B1)
申请日:
2016.12.15
申请国别(地区):
欧洲专利局
年份:
2018
代理人:
摘要：
A Pulsed Eddy Current device for inspecting an object made of an electrically conductive material comprising: at least one dual-purpose coil serving a dual purpose of producing a supplied magnetic field in the object and measuring a produced magnetic field emitted by the object, a transmitter circuit driving the dual-purpose coil(s) with an electrical signal, a shut-off current circuit for the transmitter circuit for cutting-off a current in the dual-purpose coil(s) during a cut-off phase of the electrical signal, the shut-off current circuit applying a voltage inversion on the dual-purpose coil(s) and a receiver circuit for reading the produced magnetic field from the dual-purpose coil(s). A method for inspecting an object comprising supplying a voltage on at least one dual-purpose coil, cutting-off a current in the dual-purpose coil(s) by applying a voltage inversion on the dual-purpose coil(s) and receiving, at the dual-purpose coil(s), a produced magnetic field.
