Filter arrangement for generating an estimate of a measured variable influenced by disturbances

US5056052A · kind A · utility

Inventors

• Detlev Wick · Seevetal, DE
• Hans Senn · Windisch, CH

Key dates

• Filing date: Oct 20, 1989
• Grant date: Oct 8, 1991
• Expiry date: Oct 20, 2009

Classification

• Technology area (CPC G): Physics
• CPC primary: G01C19/38
• WIPO field: Measurement
• WIPO sector: Instruments

Abstract

A filter arrangement for generating an estimate of a measured variable influenced by disturbances, by means of a filter effecting a weighting of measuring signals characterized by means (50) for achieving a measure of the disturbance and means (52) for changing the weighting of the measuring signal in dependence on the measure of the disturbance. In this way, values of the measured variable which appear during the occurrence of the disturbance are not considered with the filtering or are considered with less weighting. In a tape-suspended restrained meridian gyro a characteristic oscillation of the system serves as the measure for the disturbance.