Physikalisch-Technische Bundesanstalt (PTB), Working Group 5.42, index

	PTB > Structure > Division 5 > Department 5.4
	German Version

Working Group 5.42

Multiwavelength Interferometry for Geodetic Lengths

	-		Tasks
	-		Refractive index compensating interferometry
	-		Development
	-		Equipment
	-		Accreditation of Length Measuring Equipments
	-		Regulations, Standards and Instruction Sheets
	-		Service
	-		Publications
	-		Contact persons

Tasks

Research and development concerning the use of diode lasers in length measurements (Multiwavelength interferometry)

Research and development in the field of refractive index compensating interferometry

Calibration of line standards und Entfernungsmessgeräten

Calibration of laser interferometers and air refractometers

Calibration of measuring sensor

Type approval for verification of verkörperten Längenmaßen (measuring tapes, folding measures et al.) sowie Entfernungsmessern

Assessment of DKD laboratories

Consulting of DKD laboratories, Industrie et al.

Head of Working Group		Dr. A. Abou-Zeid Phone: 0531 592-5401 Fax: 0531 592-5405 E-Mail: ahmed.abou-zeid(at)ptb.de

Address		Physikalisch-Technische Bundesanstalt Working Group 5.42 Bundesallee 100 38116 Braunschweig