Temperature sensor and method for its manufacture

US8935843B2 · kind B2 · utility

Assignee

• Endress+Hauser Flowtec AG · CH

Inventors

• Dirk Boguhn · Munich, DE
• Jiri Holoubek · Ulisbach, CH
• Axel Pfau · Ettingen, CH
• Oliver Popp · Hirschaid, DE
• Jiri Polak · Herisau, CH

Key dates

• Filing date: Jul 9, 2012
• Grant date: Jan 20, 2015
• Expiry date: Jul 9, 2032

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y10T29/49936
• WIPO field: Measurement
• WIPO sector: Instruments

Abstract

A thermal, flow measuring device for determining and/or monitoring the flow of a measured medium through a measuring tube. The thermal, flow measuring device includes: a first pin-shaped shell and at least a second pin-shaped shell; a first resistance thermometer and at least a second resistance thermometer. At least the first resistance thermometer is embodied so as to be heatable, wherein the resistance thermometers, in each case, have a first surface, and at least a second surface, which lies opposite the first surface. The first pin-shaped shell surrounds the first resistance thermometer, and the second pin-shaped shell surrounds the second resistance thermometer. The pin-shaped shells are fillable with a fill material. In each case, at least one spacer is placeable between the pin-shaped shell and the first surface of the resistance thermometer, and the second surface of the resistance thermometer is at least partially covered with fill material.