Method and apparatus for monitoring and/or correcting of a physical characteristic

US4144578A · kind A · utility

Assignee

• Carl Schenck AG · DE

Inventors

• Martin Mueller · Walldorf, DE
• Harald Schoenfeld · Weiterstadt, DE

Key dates

• Filing date: Jan 31, 1977
• Grant date: Mar 13, 1979
• Expiry date: Jan 31, 1997

Classification

• Technology area (CPC G): Physics
• CPC primary: G01M1/22
• WIPO field: Measurement
• WIPO sector: Instruments

Abstract

A method and apparatus for deriving mean value signals is disclosed, wherein input signals are compared with signals stored in a first storage device to produce difference signals. These difference signals are added to the signals stored in the first storage device, to produce corrected means value signals, which are in turn stored in a second storage device. The output of the second storage device is transferred to the first storage device, to update the mean value stored in the first storage device.