A transient electromagnetic method for detecting irregularities on container walls by measuring wall thickness. The method utilizes a transmitting antenna and a separate receiving antenna arranged in a loop-loop configuration. The transmitting antenna induces current into the container wall and the receiving...http://www.google.es/patents/US4929898?utm_source=gb-gplus-sharePatente US4929898 - Transient electromagnetic method for detecting irregularities on conductive containers
Transient electromagnetic method for detecting irregularities on conductive ...
