Method for operating a resonance-measuring system and respective resonance system

US10151728B2 · kind B2 · utility

Assignee

• KROHNE Messtechnik GmbH · DE

Inventors

• Kourosh Kolahi · Duisburg, DE
• Ralf Storm · Essen, DE
• Andreas Poremba

Key dates

• Filing date: Jun 17, 2013
• Grant date: Dec 11, 2018
• Expiry date: Jul 23, 2033

Classification

• Technology area (CPC G): Physics
• CPC primary: G01N2011/0086
• WIPO field: Measurement
• WIPO sector: Instruments

Abstract

A method for operating a resonant measurement system has at least one: adjustment device, electric actuation device, electromagnetic vibration generator, vibrating element, and vibration recorder. The adjustment device generates an output signal to trigger the electric actuation device, the electric actuation device provides an electric excitation signal to the electromagnetic drive, the electromagnetic drive excites the vibrating element to the same vibration in at least one normal mode, and the excited vibration is sensed by the vibration recorder and is output as an output signal. To approach, maintain and readjust a resonant point as an operating point of the resonant measurement system, the phase difference between the output signal of the vibration recorder and the adjustment device output signal is acquired, an adjustment deviation is calculated from a predefined phase difference and the acquired phase difference, and the adjustment deviation provided to the adjustment device as an input signal.