ALEXANDRIA, Va., Feb. 17 -- United States Patent no. 12,551,961, issued on Feb. 17, was assigned to ESAB AB (Gothenburg, Sweden).
"Weld circuit inductance tracking" was invented by David Juliusson (Gothenburg, Sweden).
According to the abstract* released by the U.S. Patent & Trademark Office: "A method is performed in a welding or cutting system, including a power supply to deliver a current through a weld circuit to a welding torch to create an arc. The method includes: measuring the current to produce a measured current; measuring a voltage on a sense point of the power supply or the weld circuit that is spaced from the welding torch, to produce a measured voltage that differs from the arc voltage by a voltage drop caused by the current...