Method of fixing the measuring tubes of a mass flow sensor

US5610342A · kind A · utility

Assignee

• Endress+Hauser Flowtec AG · CH

Inventors

• Alfred Wenger · Neftenbach, CH
• Gerhard Eckert · Weil am Rhein, DE
• Rainer Lorenz · Nettetal, DE

Key dates

• Filing date: May 3, 1995
• Grant date: Mar 11, 1997
• Expiry date: May 3, 2015

Classification

• Technology area (CPC G): Physics
• CPC primary: G01F1/8495
• WIPO field: Measurement
• WIPO sector: Instruments

Abstract

This method of fixing the ends of measuring tubes in associated transition pieces of a Coriolis-type mass flow sensor eliminates the risk of stress-corrosion cracking in these areas as completely as possible. The ends of the measuring tubes are inserted into associated bores of the respective transition pieces and are press-bonded to the walls of the respective bores without heat supply using a rolling tool which is inserted into the respective ends.