Attachment of leads having low thermoelectric errors

摘要

A method and a system are shown for attachment of leads for the electrical sensing of the voltage on conductive structures; connections attached per this invention have the valuable property of very low thermoelectric errors (due to Seebeck effect), among several other beneficial properties. The described method can be applied in the factory setting as well as in the field. This system is especially suitable for applications with high-precision resistive shunts utilized in the measurements of the electric current.

主权项

1. An electrical potential measurement apparatus comprising:
an electrically conductive bulk mass, the bulk mass having a first location at which electrical potential is to be measured, the bulk mass at the first location at which electrical potential is to be measured composed of an electrically conductive material; said bulk mass defining a first hole therethrough, the first hole having a first edge at the first location at which the electrical potential is to be measured; a first lead passing through the first hole and in contact with the first edge at the first location at which the electrical potential is to be measured; a first resilient non-electrically-conductive plug positioned within the hole, the first resilient non-electrically-conductive plug sized to maintain force urging the first lead toward the first edge at the first location at which the electrical potential is to be measured.