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[Study on plastic film thickness measurement by integral spectrum method]
1Instrument Science and Technology, Harbin Institute of Technology, Harbin 150001, China. whbqc2003@126.com
Guang Pu Xue Yu Guang Pu Fen Xi = Guang Pu
|April 17, 2013
Summary
A new method accurately measures plastic film thickness using band integral transmission. This spectral analysis offers a more universal and accurate online measurement system compared to existing techniques.
Area of Science:
- Optics and Spectroscopy
- Materials Science
Context:
- Accurate measurement of plastic film thickness is crucial for quality control in manufacturing.
- Existing methods, like dual monochromatic light contrast, suffer from low accuracy and poor universality.
Purpose:
- To define band integral transmission and develop a plastic film thickness measurement model.
- To investigate the relationship between thickness and band integral transmission for polypropylene films.
- To assess the feasibility of an online measurement system based on this spectral method.
Summary:
- A novel model based on band integral transmission was developed by analyzing light intensity variations through plastic films.
- Spectral transmission of polypropylene films was measured, and the relationship between thickness and band integral transmission was established.
- The study demonstrates the potential for an accurate, broad-band, online plastic film thickness measurement system.
Impact:
- This integral spectrum method provides accurate plastic film thickness measurements.
- The proposed online system offers improved accuracy and universality over current methods.
- Potential to resolve limitations of existing dual monochromatic light contrast techniques.
