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Anogenital Distance and Perineal Measurements of the Pelvic Organ Prolapse POP Quantification System
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Portable contactless caliper.

Konthee Boonmeeprakob, Arinchaya Phanpumnak, Chutintorn Punwong

    Applied Optics
    |January 4, 2024
    PubMed
    Summary
    This summary is machine-generated.

    This portable optical meter measures transparent material thickness quickly and accurately without contact. It uses laser interference and requires no prior knowledge of the sample

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    Area of Science:

    • Optics and Photonics
    • Materials Science
    • Metrology

    Background:

    • Accurate thickness measurement is crucial for quality control in manufacturing.
    • Existing methods for transparent materials can be complex or require physical contact.
    • Noncontact, real-time measurement solutions are highly desirable.

    Purpose of the Study:

    • To develop a portable, noncontact optical meter for precise thickness measurement of thin, transparent samples.
    • To demonstrate the device's capability without needing the sample's refractive index.
    • To assess its potential for real-time quality control applications.

    Main Methods:

    • Utilizing laser interference patterns generated by light reflecting from the top and bottom surfaces of a transparent sample.
    • Employing a linear sensor array to capture the interference pattern.
    • Data analysis performed using an Arduino microcontroller for rapid thickness determination.

    Main Results:

    • The portable optical meter achieved accurate thickness measurements for glass cover slips and transparent plastic sheets.
    • Measurements were completed in a fraction of a second per sample.
    • The system demonstrated independence from the sample's refractive index for accurate results.

    Conclusions:

    • The developed portable optical meter offers a fast, accurate, and noncontact solution for thickness measurement.
    • Its ability to operate without a priori refractive index information enhances its versatility.
    • The device shows significant potential for real-time quality control in transparent film manufacturing and coating processes.