Development and validation of the meteorological optical range definition reproduction method using array optical components

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Summary

This summary is machine-generated.

This study introduces a new method to reproduce the meteorological optical range (MOR) definition using advanced optical components. The developed system enhances the accuracy and traceability of visibility measurements.

Area Of Science

  • Optical Engineering
  • Metrology
  • Atmospheric Science

Background

  • Accurate reproduction of the meteorological optical range (MOR) is crucial for visibility measurements.
  • Existing methods may lack the precision required for reliable calibration.

Purpose Of The Study

  • To propose and validate a novel method for reproducing the MOR definition.
  • To construct a system architecture capable of precise MOR reproduction.
  • To enhance the traceability and calibration of visibility measurements.

Main Methods

  • Selection of 30 light-emitting diodes (LEDs) based on spectral homogeneity and purity.
  • Implementation of an optimized optical architecture featuring dual free-form lenses and a microlens array.
  • Integration of a long short-term memory-non-dominated sorting genetic algorithm II (LSTM-NSGA II) for system optimization.

Main Results

  • Achieved 96% irradiance uniformity over a 65 × 65 mm range.
  • Demonstrated a beam divergence of less than 3.6°.
  • Obtained a spectral matching error of -4.24%.

Conclusions

  • The proposed method accurately reproduces the MOR definition.
  • The developed system enhances traceability for visibility measurement calibration.
  • This approach offers a reliable solution for meteorological optical range standardization.