Messung des Wärmeausdehnungskoeffizienten

Details

Veröffentlichungs-Nr.

EP3147656

Aktenzeichen

EP16190535

Anmeldetag

26. September 2016

Veröffentlichung

23. Januar 2019

Erteilung

23. Januar 2019

Rechtsraum

EP

IPC

G01N25/16

Abstract

A measurement target (step gauge (10)) and a reference gauge (reference gauge block (2)) are placed in parallel in an inside of a temperature-controlled chamber (30). After an interior temperature of the temperature-controlled chamber (30) is set at a first temperature, a relative measurement of a length from a first surface (11) to a second surface (12) of the measurement target is performed with reference to a length from a first reference surface (2A) to a second reference surface (2B) of the reference gauge. Then, the interior temperature of the temperature-controlled chamber (30) is set at a second temperature and a relative measurement of the length from the first surface (11) to the second surface (12) is similarly performed with reference to the length from the first reference surface (2A) to the second reference surface (2B). A CTE of the measurement target is calculated based on the length of the measurement target at the first temperature and the length of the measurement target at the second temperature.

Anmelder

Firma

Mitutoyo Corporation

Land

🇯🇵 Japan

Fachgebiete