Diagnosis method for a process valve, diagnosis module and process valve

US12429396B2 · kind B2 · utility

Assignee

• BUERKERT WERKE Gmbh & CO. KG · DE

Inventors

• Klaus Beck · Oberkochen, DE
• Andreas Ungerer · Ingelfingen, DE

Key dates

• Filing date: May 27, 2021
• Grant date: Sep 30, 2025
• Expiry date: Jun 25, 2044

Classification

• Technology area (CPC G): Physics
• CPC primary: G05B2219/45006
• WIPO field: Mechanical elements
• WIPO sector: Mechanical engineering

Abstract

A diagnosis method for continuous function monitoring of a process valve during normal operation. The diagnosis method includes the steps of determining process set data (S) with discrete-time process set values from an input signal supplied to the process valve, b) determining process actual data (s) with discrete-time process actual values using a displacement-measurement system assigned to the process valve, and c) analyzing the process actual data (s) dependent on the process set data (S) by comparing the process set data (S) and the process actual data (s) with each other to detect defined error states.