Magnet assembly of a measuring transducer of vibration type having a magnet cup and retaining assembly

US8201460B2 · kind B2 · utility

Assignee

• Endress+Hauser Flowtec AG · CH

Inventors

• Ennio Bitto · Aesch, CH
• Gerhard Eckert · Weil am Rhein, DE
• Dieter Mundschin · Liestal, CH

Key dates

• Filing date: Nov 23, 2009
• Grant date: Jun 19, 2012
• Expiry date: Oct 9, 2030

Classification

• Technology area (CPC G): Physics
• CPC primary: G01N11/16
• WIPO field: Measurement
• WIPO sector: Instruments

Abstract

A magnet assembly includes: a magnetic field delivering, especially rod-shaped, permanent magnet; a retaining assembly fixedly connected with the permanent magnet and having a retaining head facing the permanent magnet and serving for holding the permanent magnet, and a retaining bolt affixed to the retaining head; and a magnet cup having a cup floor and a cup wall extending from the cup floor. The retaining head of the retaining assembly is at least partially accommodated in a passageway provided in the cup floor, so that an outer contact surface of the retaining head and an inner contact surface of the passageway contact one another to form a force-based interlocking between magnet cup and retaining assembly. The magnet assembly is, especially, provided for application as an oscillation transducer and/or for use in a measuring transducer of vibration type.