Absolute Refractometry Using Helium

T. Badr,S. Azouigui,J. P. Wallerand,P. Juncar

2010 CONFERENCE ON PRECISION ELECTROMAGNETIC MEASUREMENTS CPEM（2010）

Lab Commun Metrol LNE CNAM

被引用2|浏览11

摘要

This paper describes our project of an optical refractometer. The targeted accuracy for air index measurement is below 10 -8 . It is based on an optical resonator whose mechanical distortion as a function of pressure will be calibrated using helium gas.

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关键词

air,calibration,helium,light refraction,optical resonators,refractive index measurement,He,absolute refractometry,air index measurement,mechanical distortion,optical refractometer,optical resonator