OSA's Digital Library

Applied Optics

Applied Optics


  • Editor: James C. Wyant
  • Vol. 46, Iss. 30 — Oct. 20, 2007
  • pp: 7469–7474

Cylinder gauge measurement using a position sensitive detector

W. Doyle St. John  »View Author Affiliations

Applied Optics, Vol. 46, Issue 30, pp. 7469-7474 (2007)

View Full Text Article

Enhanced HTML    Acrobat PDF (1328 KB)

Browse Journals / Lookup Meetings

Browse by Journal and Year


Lookup Conference Papers

Close Browse Journals / Lookup Meetings

Article Tools



A position sensitive detector (PSD) has been used to determine the diameter of cylindrical pins based on the shift in a laser beam's centroid. The centroid of the light beam is defined here as the weighted average of position by the local intensity. A shift can be observed in the centroid of an otherwise axially symmetric light beam, which is partially obstructed. Additionally, the maximum shift in the centroid is a unique function of the obstructing cylinder diameter. Thus to determine the cylinder diameter, one only needs to detect this maximum shift as the cylinder is swept across the beam.

© 2007 Optical Society of America

OCIS Codes
(040.5160) Detectors : Photodetectors
(120.0120) Instrumentation, measurement, and metrology : Instrumentation, measurement, and metrology

ToC Category:

Original Manuscript: July 9, 2007
Revised Manuscript: August 30, 2007
Manuscript Accepted: August 30, 2007
Published: October 11, 2007

W. Doyle St. John, "Cylinder gauge measurement using a position sensitive detector," Appl. Opt. 46, 7469-7474 (2007)

Sort:  Author  |  Year  |  Journal  |  Reset  


  1. J. Fraden, Handbook of Modern Sensors: Physics, Designs, and Applications, 3rd ed. (AIP, 2004).
  2. H. Wang, "Application of position-sensitive detectors to dynamic inspection of diameter of metal wires," Meas. Sci. Technol. 5, 942-946 (1994). [CrossRef]
  3. H. Wang and R. Valdivia-Hernandez, "Laser scanner and diffraction pattern detection: a novel concept for dynamic gauging of fine wires," Meas. Sci. Technol. 6, 452-457 (1995). [CrossRef]
  4. Cortex Technical R&D Ltd., H-1111 Budapest, Kende u. 13-17, Hungary, www.cortex.hu/.
  5. A. E. Seigman, Lasers (University Science Books, 1986), Chap. 17.
  6. Black oxide coated gauge pins manufactured by Vermont Gage in Swanton, Vermont, USA, www.vermontgage.com.
  7. Technical note, "Characteristics and use of PSD,"www.hamamatsu.com/.
  8. M. Glass, "Diffraction of a Gaussian beam around a strip mask," Appl. Opt. 37, 2550-2562 (1998). [CrossRef]
  9. R. G. Greenler, J. W. Hable, and P. O. Slane, "Diffraction around a fine wire: How good is the single slit approximation?"Am. J. Phys. 58, 330-331 (1990). [CrossRef]
  10. S. Ganci, "Fraunhofer diffraction by a thin wire and Babinet's principle," Am. J. Phys. 73, 83-84 (2005). [CrossRef]
  11. E. Zimmermann, R. Dandliker, N. Souli, and B. Krattiger, "Scattering of an off-axis Gaussian beam by a dielectric cylinder compared with a rigorous electromagnetic approach," J. Opt. Soc. Am. 12, 398-403 (1995). [CrossRef]
  12. H. T. Yura and T. S. Rose, "Gaussian beam transfer through hard-aperture optics," Appl. Opt. 34, 6826-6828 (1995). [CrossRef] [PubMed]
  13. E. Hecht, Optics, 4th ed. (Addison-Wesley, 2002).
  14. M. V. Klein and T. E. Furtak, Optics, 2nd ed. (Wiley, 1986).
  15. MATHEMATICA software by Wolfram Research, Inc., www.wolfram.com/.

Cited By

Alert me when this paper is cited

OSA is able to provide readers links to articles that cite this paper by participating in CrossRef's Cited-By Linking service. CrossRef includes content from more than 3000 publishers and societies. In addition to listing OSA journal articles that cite this paper, citing articles from other participating publishers will also be listed.

« Previous Article  |  Next Article »

OSA is a member of CrossRef.

CrossCheck Deposited