American Journal of Modern Physics

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Relative Method of Measuring Coefficient of Luminous Intensity of Retro Reflective Devices

Received: 15 May 2018    Accepted: 5 June 2018    Published: 7 July 2018
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Abstract

A relative method is proposed for measuring the coefficient of retro reflective light intensity CRLI through specific coefficient of retro reflective Luminance CRL and area of controlled product. In contrast to the adopted absolute measurement method, by measuring the ratio of light intensity of retro reflective sample to illuminance on it, it is proposed to measure reflectance of retro reflective sample in a small solid angle with calculation CRLI. The proposed method allows using the same testing unit and instruments for measuring CRLI, which are used to measure the CRL road signs and road markings. That permits to significantly reduce measurement error.

DOI 10.11648/j.ajmp.20180703.12
Published in American Journal of Modern Physics (Volume 7, Issue 3, May 2018)
Page(s) 116-120
Creative Commons

This is an Open Access article, distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution and reproduction in any medium or format, provided the original work is properly cited.

Copyright

Copyright © The Author(s), 2024. Published by Science Publishing Group

Keywords

Road Warning Triangles, Coefficient of Retro Reflective Light Intensity, Measurements, Reflectance, Testing Unit, Measurements Errors

References
[1] Kuvaldin E. V. Relative method of measuring the photometric characteristics of road signs and marking / / Measuring technique. 2010. № 4. pp. 64-68.
[2] Russian GOST 7721 - 89 Light sources for measuring color.
[3] Kuvaldin E. V. "Equipment for measuring the coefficient of horizontal road marking" // Roads of Russia in the 21st century, 2005, 2, pp. 73-75.
[4] Kuvaldin E. V. Methods of measuring the coefficient of retro reflectance of road markings and road signs // International conference "Applied optics" St. Petersburg November 2006, Volume 1, page 248-251.
[5] Kuvaldin E. V. Meters of energy and power of optical radiation. // International Conference "Applied Optics" St. Petersburg, November 2006, Volume 1, pp. 217-221.
[6] International Lighting Dictionary // Publisher Russian language, M., 1978, 278 p.
[7] E. V. Kuvaldin: Method of calibrating pulse photometers of energy and power with conversion in time // Journal of Optical Technology, Volume 73. 18, 2006 pp. 42-47.
[8] E. Kuvaldin: Counting Method for Measuring and Linearity Checking Photometry Devices //Measurement science review http://www.measurement.sk/2010/S1/p.html and in: Versita-Central European Science Publisher: http://versita.metapress.com/content/121037/, Volume 10, Number 2 / 2010
[9] Kuvaldin E. V. Optical Energy meters and sources of radiations calibrations in a wide measuring range/ / Measuring technique. 2018. in press.
[10] Catalog of colored glass // Mechanical engineering, M, 1967, 63 p.
[11] E. V. Kuvaldin: Remote and contact devices of plant condition diagnostics / / Journal of optical technology. 2013. No 11. pp. 71-80.
[12] Kuvaldin E. V., Shulga A. A. Pulsed light-emitting diode emitter // Journal of optical technology, 2017. No. 9, pp. 85-89.
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  • APA Style

    Eduard V. Kuvaldin. (2018). Relative Method of Measuring Coefficient of Luminous Intensity of Retro Reflective Devices. American Journal of Modern Physics, 7(3), 116-120. https://doi.org/10.11648/j.ajmp.20180703.12

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    ACS Style

    Eduard V. Kuvaldin. Relative Method of Measuring Coefficient of Luminous Intensity of Retro Reflective Devices. Am. J. Mod. Phys. 2018, 7(3), 116-120. doi: 10.11648/j.ajmp.20180703.12

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    AMA Style

    Eduard V. Kuvaldin. Relative Method of Measuring Coefficient of Luminous Intensity of Retro Reflective Devices. Am J Mod Phys. 2018;7(3):116-120. doi: 10.11648/j.ajmp.20180703.12

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  • @article{10.11648/j.ajmp.20180703.12,
      author = {Eduard V. Kuvaldin},
      title = {Relative Method of Measuring Coefficient of Luminous Intensity of Retro Reflective Devices},
      journal = {American Journal of Modern Physics},
      volume = {7},
      number = {3},
      pages = {116-120},
      doi = {10.11648/j.ajmp.20180703.12},
      url = {https://doi.org/10.11648/j.ajmp.20180703.12},
      eprint = {https://article.sciencepublishinggroup.com/pdf/10.11648.j.ajmp.20180703.12},
      abstract = {A relative method is proposed for measuring the coefficient of retro reflective light intensity CRLI through specific coefficient of retro reflective Luminance CRL and area of controlled product. In contrast to the adopted absolute measurement method, by measuring the ratio of light intensity of retro reflective sample to illuminance on it, it is proposed to measure reflectance of retro reflective sample in a small solid angle with calculation CRLI. The proposed method allows using the same testing unit and instruments for measuring CRLI, which are used to measure the CRL road signs and road markings. That permits to significantly reduce measurement error.},
     year = {2018}
    }
    

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    AU  - Eduard V. Kuvaldin
    Y1  - 2018/07/07
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    AB  - A relative method is proposed for measuring the coefficient of retro reflective light intensity CRLI through specific coefficient of retro reflective Luminance CRL and area of controlled product. In contrast to the adopted absolute measurement method, by measuring the ratio of light intensity of retro reflective sample to illuminance on it, it is proposed to measure reflectance of retro reflective sample in a small solid angle with calculation CRLI. The proposed method allows using the same testing unit and instruments for measuring CRLI, which are used to measure the CRL road signs and road markings. That permits to significantly reduce measurement error.
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Author Information
  • Metrology Department, S.I. Vavilov State Optical Institute, St. Petersburg, Russia

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