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Wide-range and accurate particle sizing using extended interferometric particle imaging technique.
Jie Xu1, Baozhen Ge1, Qieni Lu1
1School of Precision Instrument and Opto-Electronics Engineering, Tianjin University, Tianjin 300072, China.
The Review of Scientific Instruments
|January 3, 2019
Summary
This study introduces an extended interferometric particle imaging (IPI) technique using multiple imaging systems to accurately measure particles across a wider size range, from 10 μm to 1 mm.
Area of Science:
- Optical Engineering
- Particle Imaging
- Metrology
Background:
- Accurate measurement of particles across a wide size range is challenging with traditional interferometric particle imaging (IPI).
- Existing IPI methods have limitations in achieving broad size measurability.
Purpose of the Study:
- To develop an extended interferometric particle imaging (IPI) technique for enhanced particle size measurement range.
- To investigate the impact of scattering angles and polarization on IPI measurements.
Main Methods:
- Proposed an extended IPI technique incorporating double or multiple imaging systems.
- Utilized different scattering angles and polarizations to capture fringe patterns.
- Analyzed the effects of particle size, scattering angle, polarization, and system parameters on fringe patterns.
Main Results:
- The extended IPI technique significantly widened the measurable particle size range to 10 μm-1 mm for water droplets.
- High-quality fringe patterns were obtained, improving measurement accuracy.
- Relative deviations in extracted diameters were within 9%.
Conclusions:
- The extended IPI technique offers a robust solution for accurate particle sizing over an expanded size range.
- This method enhances the capability of interferometric techniques in particle metrology.
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