The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
Jun. 24, 2025

Filed:

Jul. 27, 2023
Applicant:

Hochschule Für Angewandte Wissenschaft Und Kunst Hildesheim/holzminden/göttingen, Hildesheim, DE;

Inventors:

Mario Hesse, Göttingen, DE;

Jannik Schulz, Göttingen, DE;

Roland Damm, Ebergötzen, DE;

Wolfgang Viöl, Adelebsen, DE;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01J 37/32 (2006.01); H05H 1/00 (2006.01); H05H 1/24 (2006.01);
U.S. Cl.
CPC ...
H01J 37/32981 (2013.01); H01J 37/32577 (2013.01); H01J 37/32642 (2013.01); H05H 1/0018 (2013.01); H05H 1/2425 (2021.05);
Abstract

A measurement apparatus for alternating currents and voltages of a physical plasma ignited by applying an alternating high voltage from an alternating high voltage source to a plasma electrode via a high voltage line comprises a current transformer having a measurement winding on a ring core and a cable guide guiding the high voltage line through the ring core. A first measurement alternating voltage dropping over a measurement resistor connected between ends of the measurement winding is a first strictly monotonic increasing function of an amperage of the alternating currents flowing through the high voltage line. A second measurement voltage dropping over a measurement capacitance connected between a center tap of the measurement winding and a reference potential connector is a second strictly monotonic increasing function of an amplitude of the alternating high voltage applied to the plasma electrode with respect to a reference potential at the reference potential connector.


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