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LED Mini Lidar for Atmospheric Application.

Tatsuo Shiina1

  • 1Graduate School of Engineering, Chiba University, 1-33 Yayoi-cho, Inage-ku, Chiba-shi 263-8522, Japan. shiina@faculty.chiba-u.jp.

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Summary
This summary is machine-generated.

Researchers developed a compact, low-cost mini lidar using a Light Emitting Diode (LED) light source. This resilient atmospheric lidar system offers ease of use and near-range surface atmosphere monitoring for diverse applications.

Keywords:
LEDatmospherelidarnear rangephoton counter

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Area of Science:

  • Atmospheric Science
  • Optical Engineering
  • Instrumentation

Background:

  • Traditional atmospheric lidar systems, such as Micro Pulse Lidars (MPL) and ceilometers, aimed for compactness but faced limitations.
  • Laser Diode (LD) and Diode-Pumped Solid State (DPSS) laser technologies, while enabling smaller lidar, proved vulnerable to electrostatic discharge and power fluctuations.
  • These vulnerabilities hindered the widespread adoption of atmospheric lidar technology for general users.

Purpose of the Study:

  • To design and develop a compact and user-friendly atmospheric lidar system.
  • To overcome the limitations of existing lidar technologies, particularly their fragility and power sensitivity.
  • To create a low-cost, resilient lidar suitable for near-range atmospheric measurements.

Main Methods:

  • A novel mini lidar system was designed utilizing a Light Emitting Diode (LED) as the primary light source.
  • The optical design focused on optimizing transmitting power, addressing the inherent beam divergence of LEDs compared to lasers.
  • The system was developed with considerations for ease of handling by non-professionals, eliminating the need for heat sinks or fans.

Main Results:

  • The developed LED mini lidar is compact, resilient, and cost-effective.
  • LED modules provide stable light intensity over extended periods without requiring auxiliary cooling.
  • The system demonstrates effective near-range measurement capabilities for surface atmosphere analysis.

Conclusions:

  • The LED mini lidar offers a practical and accessible solution for atmospheric monitoring.
  • Its robustness and ease of use make it suitable for a wider range of users and applications.
  • This technology enables visualization and prediction of surface atmospheric conditions through near-range measurements.