3D diffusivity

US9939396B2 · kind B2 · utility

Assignee

• NETZSCH-Gerätebau GmbH · DE

Inventors

• Marc-Antoine Thermitus · Burlington, US
• Martin Brunner · Pforzheim, DE
• Juergen Blumm · Selb, DE
• Robert Neil Campbell · Duxbury, US
• Thomas Denner · Selb, DE
• Michael Gebhardt · Selb, DE
• Andreas Hartinger · Wettin, DE
• Thilo Hilpert · Selb, DE
• Stefan Lauterbach · Selb, DE
• André Lindemann · Merseburg, DE
• Matthias Schödel · Lenggries, DE
• Andreas Strobel · Zwingenberg, DE
• Jürgen Tschöpel · Arzberg, DE

Key dates

• Filing date: Jan 30, 2015
• Grant date: Apr 10, 2018
• Expiry date: Aug 24, 2036

Classification

• Technology area (CPC G): Physics
• CPC primary: G01N25/18
• WIPO field: Measurement
• WIPO sector: Instruments

Abstract

A system for measuring the thermal diffusivity of a material includes a housing having an upper portion and a lower portion, a plate holding the material in a fixed position between the upper portion and lower portion of the housing, and a source at the lower portion of the housing projecting heat onto the material along a first axis that is perpendicular to the plate. A sensor at the lower portion of the housing is movable in relation to the plate and senses the heat radiating through the material along a second axis that is perpendicular to the plate and offset from the first axis. A controller receives data from the sensor and calculates the thermal diffusivity of the material.