Development and Construction of an Interferometer for Optical Measurements of Density Fields

One of 1,437 reports in the series: NACA Technical Memorandums available on this site.

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Description

A method of interference is described in the present report which promises profitable application in aeronautical research. The physical foundation of the method and a simple method of adjustment are briefly discussed. The special technical construction of the instrument is described which guarantees its use also in the case of vibrations of the surrounding space and permits the investigation of unsteady phenomena. It is found that the interference method will make the small differences in density in the flow field around the body even at low speeds. (40 m/sec) optically measurable.

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Zobel, Th. September 1, 1947.

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This report is part of the collection entitled: National Advisory Committee for Aeronautics Collection and one other and was provided by UNT Libraries Government Documents Department to Digital Library, a digital repository hosted by the UNT Libraries. It has been viewed 41 times . More information about this report can be viewed below.

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  • Main Title: Development and Construction of an Interferometer for Optical Measurements of Density Fields
  • Series Title: NACA Technical Memorandums

Description

A method of interference is described in the present report which promises profitable application in aeronautical research. The physical foundation of the method and a simple method of adjustment are briefly discussed. The special technical construction of the instrument is described which guarantees its use also in the case of vibrations of the surrounding space and permits the investigation of unsteady phenomena. It is found that the interference method will make the small differences in density in the flow field around the body even at low speeds. (40 m/sec) optically measurable.

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  • URL: http://hdl.handle.net/2060/20030068820 External Link
  • Report No.: NACA-TM-1184
  • Center for AeroSpace Information Number: 20030068820
  • Archival Resource Key: ark:/67531/metadc64002

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National Advisory Committee for Aeronautics Collection

The National Advisory Committee for Aeronautics (NACA) was a U.S. federal agency founded on March 3, 1915 to undertake, promote, and institutionalize aeronautical research. On October 1, 1958 the agency was dissolved, and its assets and personnel transferred to the newly created National Aeronautics and Space Administration (NASA).

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Creation Date

  • September 1, 1947

Added to The UNT Digital Library

  • Nov. 17, 2011, 5:13 p.m.

Description Last Updated

  • Feb. 6, 2017, 3:32 p.m.

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Zobel, Th. Development and Construction of an Interferometer for Optical Measurements of Density Fields, report, September 1, 1947; (digital.library.unt.edu/ark:/67531/metadc64002/: accessed October 16, 2018), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.