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Title: Comparison of infinite and wedge fringe settings in Mach Zehnder interferometer for temperature field measurement

Interferometric method, which utilizes the interference of coherent light beams, is used to determine the temperature distribution in the vicinity of a vertical heater plate. The optical components are arranged so as to obtain wedge fringe and infinite fringe patterns and isotherms obtained in each case were compared. In wedge fringe setting, image processing techniques has been used for obtaining isotherms by digital subtraction of initial parallel fringe pattern from deformed fringe pattern. The experimental results obtained are compared with theoretical correlations. The merits and demerits of the fringe analysis techniques are discussed on the basis of the experimental results.
Authors:
 [1] ; ; ;  [2]
  1. Department of Physics, National Institute of Technology Calicut, Kerala, 673601 (India)
  2. School of Nano Science and Technology, National Institute of Technology Calicut, Kerala, 673601 (India)
Publication Date:
OSTI Identifier:
22307998
Resource Type:
Journal Article
Resource Relation:
Journal Name: AIP Conference Proceedings; Journal Volume: 1620; Journal Issue: 1; Conference: Optics 14: International conference on optics: Light and its interactions with matter, Calicut, Kerala (India), 19-21 Mar 2014; Other Information: (c) 2014 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
71 CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS; COMPARATIVE EVALUATIONS; CORRELATIONS; IMAGE PROCESSING; INTERFERENCE; INTERFEROMETRY; ISOTHERMS; MACH-ZEHNDER INTERFEROMETER; OPTICS; PHOTON BEAMS; PLATES; TEMPERATURE DISTRIBUTION; VISIBLE RADIATION