Abstract: In order to be able to operate a sensor device on a feed pipeline carrying high voltage without using batteries or storage batteries, the sensors are connected for supply purposes via an electrical isolating stage to a mains voltage source and for signal purposes to an evaluation circuit.
Type:
Grant
Filed:
February 25, 2004
Date of Patent:
July 18, 2006
Assignee:
Eisenmann Lacktechnik KG (Komplementar: Eisenmann-Stiftung)