Patent · US Expired

High-temperature extensometer

US5699624A · kind A · utility

2Cited by

5References

7Claims

0Family size

Assignee

INDUSTRIEANLAGEN-BETRIEBSGESELLSCHAFT MBH · DE

Inventors

Rainer Gaus · Holzkirchen, DE
Stefan Zauner · Hausham, DE
Gunther Gesell · Stephanskirchen, DE

Key dates

Filing date	Mar 25, 1996
Grant date	Dec 23, 1997
Priority date	—
Expiry date	Mar 25, 2016

Classification

Technology area (CPC G)Physics
CPC primaryG01N25/16
WIPO fieldMeasurement
WIPO sectorInstruments

Abstract

The invention relates to an apparatus for the one-dimensional, highly precise measurement of extension at the surfaces of hot specimens. The working range extends from normal temperature to about 1800.degree. C., but measurements are also possible up to 2300.degree. C. With respect to atmospheric pressure, the application range extends from vacuum up to pressures of several bar. The high-temperature extensometer in accordance with the invention is distinctly more cost-effective than previous extensometers for hot test specimens, despite its considerably larger measurement range.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.