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Subsurface Defect Localization by Structured Heating Using Laser Projected Photothermal Thermography

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Parameter Optimization and Development of Mini Infrared Lidar for Atmospheric Three-Dimensional Detection.

Zhiqiang Kuang^1,2, Dong Liu^1,2,3, Decheng Wu^1,2,3

¹Key Laboratory of Atmospheric Optics, Anhui Institute of Optics and Fine Mechanics, Hefei Institutes of Physical Science, Chinese Academy of Sciences, Hefei 230031, China.

Sensors (Basel, Switzerland)

|January 21, 2023

Summary

A new mini Infrared Lidar (mIRLidar) sensor enables multi-dimensional atmospheric detection. This lightweight, low-cost device effectively monitors aerosol and pollution distribution up to 5 km.

Keywords:

atmospheric detection infrared wavelength lidar parameter optimization sensor

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Area of Science:

Atmospheric Science
Remote Sensing Technology
Environmental Monitoring

Background:

Atmospheric research requires advanced multi-dimensional detection methods.
Existing remote sensing technologies can be bulky and costly.

Purpose of the Study:

To develop a novel, lightweight, and cost-effective mini Infrared Lidar (mIRLidar) sensor.
To enable enhanced atmospheric and pollution distribution research.

Main Methods:

Optimized key optical parameters (laser wavelength, energy, telescope diameter, FOV, filter bandwidth) via simulation.
Developed a compact structural design with a temperature control system.
Integrated a 1064 nm laser, 100 mm telescope, 0.5 nm filter, and APD.

Main Results:

Achieved a compact lidar system (200x200x420 mm, 13.5 kg).
Demonstrated effective 3D detection of aerosol and pollution distribution up to 5 km.
Enabled horizontal, scanning, and navigational atmospheric measurements.

Conclusions:

The developed mIRLidar sensor offers a practical solution for atmospheric research.
This technology has significant potential for meteorological research and environmental monitoring.