Accession Number : ADA019666

Title :   Absolute Length Changes by Remote Interferometry.

Descriptive Note : Interim rept.,

Corporate Author : AEROSPACE CORP EL SEGUNDO CALIF LAB OPERATIONS

Personal Author(s) : Wolff,Ernest G. ; Eselun,Steven A.

Report Date : 10 DEC 1975

Pagination or Media Count : 47

Abstract : The subject of remote or 'contactless' length change measurements is reviewed. The development of a Michelson-type laser interferometer is described. Fringe analysis and system requirements to achieve continuous real-time delta l/l versus temperature curves with a resolution of less then 10 A are outlined. (Author)

Descriptors :   *Interferometers, *Dilatometers, *Thermal stability, *Change detection, Length, Laser beams, Remote detectors, Real time, Optical equipment, Temperature, Measurement, Resolution, Interferometry, Mirrors

Subject Categories : Lasers and Masers
      Optics
      Thermodynamics

Distribution Statement : APPROVED FOR PUBLIC RELEASE