ELECTRODE IN CONTACT WITH A SUBSTANCE TO BE MEASURED, AND METHOD FOR THE PRODUCTION THEREOF

摘要

The invention relates to an electrode which is in contact with a substance to be measured, especially for detecting the measuring values in a magnetic induction flowmeter (IDM), said electrode coming into contact with an abrasive or chemically aggressive substance to be measured (9). The inventive electrode comprises a form-determining base body (8) consisting of a metal that is non-resistant in relation to the substance to be measured (9), the surface of said base body being at least partially provided with a precious metal coating (11) for improving the electroconductivity. Said coating establishes the electrical contact with an envelope body (10) which is resistant in relation to the substance to be measured (9), surrounds the base body (8), and establishes the contact with the substance to be measured (9).