Influence of vibration on microdiameter measurements using a laser-charge-coupled device system

Area of Science:

• Optics and Measurement Science
• Precision Engineering

Background:

• Dynamic microdiameter measurement is crucial for various industries.
• Laser diffraction systems are commonly used for microdiameter measurements.
• Vibration can introduce significant errors in optical measurement systems.

Purpose of the Study:

• To investigate the influence of vibration on microdiameter measurements using laser diffraction.
• To analyze the impact of vibration on diffraction patterns and measurement accuracy.
• To explore methods for improving measurement precision in the presence of vibration.

Main Methods:

• Theoretical analysis of vibration effects on laser diffraction patterns.
• Experimental validation using a laser diffraction-CCD detection system.
• Comparison of measurement results obtained with uniform and TEM(00) Gaussian incident beams.

Main Results:

• Vibration introduces significant errors in microdiameter measurements.
• Theoretical predictions of vibration influence are consistent with experimental data.
• Employing a TEM(00) Gaussian beam reduces measurement errors compared to a uniform beam.

Conclusions:

• Vibration is a critical factor affecting the accuracy of laser diffraction-based microdiameter measurements.
• The use of a TEM(00) Gaussian incident beam offers a viable strategy to mitigate vibration-induced errors.
• Further research can focus on advanced vibration isolation techniques for enhanced measurement stability.