Power meter with two detector elements for a power measurement even of extremely low frequencies

US9939473B2 · kind B2 · utility

Assignee

• Rohde & Schwarz GmbH & Co. KG · DE

Inventors

• Werner Perndl · Vaterstetten, DE
• Alexander Kunze · Munich, DE
• Burkhard Kuefner · Schleching, DE
• Thomas Reichel · Heroldsbach, DE

Key dates

• Filing date: Aug 11, 2015
• Grant date: Apr 10, 2018
• Expiry date: Mar 31, 2036

Classification

• Technology area (CPC G): Physics
• CPC primary: G01R19/10
• WIPO field: Measurement
• WIPO sector: Instruments

Abstract

The invention relates to a power meter with a two-path or multipath detector comprising at least two detector elements. Each detector element generates an output voltage. In order to detect an electrical power of an alternating electrical input signal, the sum and the difference of the output voltages of the detector elements are formed separately from one another.