Patent · US Active

Method and device for investigation of a surface layer

US8067244B2 · kind B2 · utility

0Cited by

0References

10Claims

0Family size

Assignee

GasPorOx AB · SE

Inventors

Sune Svanberg · Lund, SE
Mikael Sjoholm · Lund, SE
Gabriel Somes-Falean · Lund, SE

Key dates

Filing date	Nov 2, 2004
Grant date	Nov 29, 2011
Priority date	—
Expiry date	Dec 25, 2027

Classification

Technology area (CPC G)Physics
CPC primaryG01N2015/0873
WIPO fieldMeasurement
WIPO sectorInstruments

Abstract

A method and device for investigation of a surface layer of a material. The material without surface layer is exposed for a gas and the penetration of the gas into the material is measured. Then the surface layer is applied to the material. Finally, the material including the surface layer is exposed for the gas and the penetration of the gas into the material through the surface layer is measured. The measurement of the passage of the gas into the material is performed by a method comprising measurement of light absorption by the gas by absorption spectroscopy.

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