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Division 5
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Department 5.4
German Version
Working Group 5.44
Interferometry on Prismatic Bodies
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Tasks
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Precision Interferometer
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Gas-Refractometry
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Enhancements regarding gauge block comparators
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Research projects
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Publications
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Contact persons
Tasks
Precision Interferometer
High accuracy determination of thermal expansion coefficients and compressibility
Investigation of the homogeneity of thermal expansion
Investigation of length relaxation and long term stability
Gas-Refractometry
High accuracy determination of the air refractive index as a
function of environmental parameters using refractometer cells
Ultra high determination of air constituents using the "length refractometer"
Further development of gauge block comparators
Example: conversion of the PTB Kösters-Comparator to phase stepping interferometry
Head of Working Group:
Dr. René Schödel
Phone: 0531 592-5440
Fax: 0531 592-695440
E-Mail:
rene.schoedel@ptb.de
Address
Physikalisch-Technische Bundesanstalt
Working Group 5.44
Bundesallee 100
D-38116 Braunschweig
© Physikalisch-Technische Bundesanstalt
Page created: 26-Sep-2006, last update: 03-Apr-2008 10:10 AM,
K. Eggert