Thickness measurement system for transparent plates using dual digital versatile disc (DVD) pickups

Liu, Chien-Hung; Yeh, Shien-Chang; Huang, Hsueh-Liang

doi:10.1364/AO.49.000637

Title: Thickness measurement system for transparent plates using dual digital versatile disc (DVD) pickups

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Abstract

A low-cost high-precision thickness measurement system for transparent plates that uses dual digital versatile disc (DVD) pickups is proposed. The two DVD pickups are used as the transmitter and the receiver in the measurement system, respectively. One of the DVD pickups emits a laser to the other DVD pickup (receiver) and projects on the photodiode integrated circuit of the receiver. The transparent plate is placed in the optical path to change the focused point that will affect the focusing error signal (FES) of the receiver. Using the FES, a mathematical model for thickness measurement based on the geometric optical method is developed. The experimental results show that the accuracy is 1.5 {mu}m, and the uncertainty is estimated to be {+-}1.37 {mu}m for the measured thickness of 150{mu}m.

Authors:: Liu, Chien-Hung; Yeh, Shien-Chang; Huang, Hsueh-Liang

Publication Date:: Mon Feb 01 00:00:00 EST 2010

OSTI Identifier:: 22036438

Resource Type:: Journal Article

Journal Name:: Applied Optics

Additional Journal Information:: Journal Volume: 49; Journal Issue: 4; Other Information: (c) 2010 Optical Society of America; Country of input: International Atomic Energy Agency (IAEA); Journal ID: ISSN 0003-6935

Country of Publication:: United States

Language:: English

Subject:: 46 INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND TECHNOLOGY; ACCURACY; EMISSION; FOCUSING; INTEGRATED CIRCUITS; LASER RADIATION; MATHEMATICAL MODELS; PLATES; THICKNESS

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                    Liu, Chien-Hung, Yeh, Shien-Chang, and Huang, Hsueh-Liang. Thickness measurement system for transparent plates using dual digital versatile disc (DVD) pickups.  United States: N. p., 2010. 
        Web.  doi:10.1364/AO.49.000637.

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                    Liu, Chien-Hung, Yeh, Shien-Chang, & Huang, Hsueh-Liang. Thickness measurement system for transparent plates using dual digital versatile disc (DVD) pickups.  United States.  https://doi.org/10.1364/AO.49.000637

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                    Liu, Chien-Hung, Yeh, Shien-Chang, and Huang, Hsueh-Liang. 2010.  
        "Thickness measurement system for transparent plates using dual digital versatile disc (DVD) pickups".  United States.  https://doi.org/10.1364/AO.49.000637.

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@article{osti_22036438,

  title        = {Thickness measurement system for transparent plates using dual digital versatile disc (DVD) pickups},

  author       = {Liu, Chien-Hung and Yeh, Shien-Chang and Huang, Hsueh-Liang},

  abstractNote = {A low-cost high-precision thickness measurement system for transparent plates that uses dual digital versatile disc (DVD) pickups is proposed. The two DVD pickups are used as the transmitter and the receiver in the measurement system, respectively. One of the DVD pickups emits a laser to the other DVD pickup (receiver) and projects on the photodiode integrated circuit of the receiver. The transparent plate is placed in the optical path to change the focused point that will affect the focusing error signal (FES) of the receiver. Using the FES, a mathematical model for thickness measurement based on the geometric optical method is developed. The experimental results show that the accuracy is 1.5 {mu}m, and the uncertainty is estimated to be {+-}1.37 {mu}m for the measured thickness of 150{mu}m.},

  doi          = {10.1364/AO.49.000637},

  url          = {https://www.osti.gov/biblio/22036438},
  journal      = {Applied Optics},

  issn         = {0003-6935},

  number       = 4,

  volume       = 49,

  place        = {United States},

  year         = {Mon Feb 01 00:00:00 EST 2010},

  month        = {Mon Feb 01 00:00:00 EST 2010}

}

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