Probe for measuring the effectiveness of a cathodic corrosion protection system, especially an underground pipeline protection system, has a number of isolated conducting surfaces of known different surface area

摘要

Measurement probe (1) for use in determining the state of a cathodic corrosion protection system has a number of conducting surfaces of known size. The surfaces are configured as a number of separate isolated conducting surfaces (2, 3, 4, 5). The probe has a contact field with which one of the conducting surfaces can be selected for a particular diameter pipe.