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Applied Optics

Applied Optics

APPLICATIONS-CENTERED RESEARCH IN OPTICS

  • Vol. 7, Iss. 2 — Feb. 1, 1968
  • pp: 341–342

Automatic Interferometer with Digital Readout for Refractometric Analysis

W. Kinder, J. Neumann, H. Plesse, and R. Torge  »View Author Affiliations


Applied Optics, Vol. 7, Issue 2, pp. 341-342 (1968)
http://dx.doi.org/10.1364/AO.7.000341


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Abstract

The paper describes an interference refractometer for liquids and gases which operates automatically and reads out in digital or analog form. A compensating technique using white light is used for measurement. Zero adjustment is achieved by rotating the compensator and capturing the zero-order white light fringe by photoelectric means. Measurement of the path difference compensated by the compensator is based on electronic interpolation and counting of interference fringes by optointerferometric means, a time division multiplex technique with pulse amplitude modulation being used to obtain the electrical fringe signals.

© 1968 Optical Society of America

History
Original Manuscript: July 11, 1967
Published: February 1, 1968

Citation
W. Kinder, J. Neumann, H. Plesse, and R. Torge, "Automatic Interferometer with Digital Readout for Refractometric Analysis," Appl. Opt. 7, 341-342 (1968)
http://www.opticsinfobase.org/ao/abstract.cfm?URI=ao-7-2-341

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