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Calibration Procedures for Orthogonal Superposition Rheology

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Published on: November 18, 2020

Application of orthogonal sampling to incomplete data interferometric tomography: numerical simulation and

Yao Hongbing¹, Zhang Yongkang, Ye Xia

¹School of Mechanical Engineering, Jiangsu University, China. alenyao76@yahoo.com.cn

|May 2, 2008

Summary

Orthogonal projection sampling significantly improves flow field reconstruction in optical computerized tomography (OCT). This method drastically reduces errors, enhancing precision for incomplete data fields.

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Area of Science:

Fluid Dynamics
Optical Engineering
Image Reconstruction

Background:

Reconstructing incomplete flow fields in optical computerized tomography (OCT) presents significant challenges.
Traditional sampling modes often lead to substantial reconstructive errors.
Accurate flow field measurement is crucial for various scientific and engineering applications.

Purpose of the Study:

To introduce and evaluate an orthogonal projection sampling mode for reconstructing incomplete-data flow fields in OCT.
To compare the reconstructive accuracy of the proposed mode against conventional methods using numerical simulations and experimental validation.

Main Methods:

Numerical simulations of a two-peak plane symmetric flow field were performed using different sampling modes.
Error indexes, including Mean Square Error (MSE) and Peak Error (PE), were used to quantify reconstructive accuracy.
Experimental validation was conducted using a Fabry-Perot rotary interferometer.

Main Results:

Orthogonal projection sampling mode drastically reduced errors and improved precision in incomplete data field reconstruction.
Numerical simulations showed a 72.81% decrease in MSE and a 73.97% decrease in PE compared to sequential projection sampling.
Experimental results demonstrated a precision of 10% using the orthogonal sampling mode.

Conclusions:

Orthogonal projection sampling is a practicable and effective method for reconstructing incomplete data fields in OCT.
The proposed method offers significant improvements in accuracy and precision over existing techniques.
Findings provide guidance for flow-field measurement and apparatus design in practical OCT applications.