Device and method for measuring a change in length of a sample and/or for measuring a deformation force on a sample

US9791330B2 · kind B2 · utility

Assignee

• NETZSCH-Gerätebau GmbH · DE

Inventors

• Fabian Wohlfahrt · Rehau, DE
• Thomas Denner · Selb, DE
• Georg Storch · Selb, DE

Key dates

• Filing date: Feb 19, 2015
• Grant date: Oct 17, 2017
• Expiry date: Nov 7, 2035

Classification

• Technology area (CPC G): Physics
• CPC primary: G01N2203/0682
• WIPO field: Measurement
• WIPO sector: Instruments

Abstract

A system for measuring change in length and/or deformation force on a sample in a longitudinal direction. The system is useful in thermomechanical analysis and/or dynamic-mechanical analysis, and comprises a pushrod extending in the longitudinal direction which exerts force on the sample, and a device measuring movement of the pushrod resulting from the change in length or deformation of the sample in the longitudinal direction. The measuring device includes: a pushrod base mounted on a stationary base with a guide so as to be movable in the longitudinal direction; a controllable drive for moving the pushrod; a detector measuring the force exerted by the pushrod on the sample; and a path sensor for measuring the movement of the pushrod.