在土壤爆炸灰尘中激光的反射回声强度特征
Lijuan Gao1, Fue-Sang Lien2, Huimin Chen1
1Science and Technology on Electromechanical Dynamic Control Laboratory, Beijing Institute of Technology, Beijing 100081, China.
Sensors (Basel, Switzerland)
|July 8, 2023
概括
这项研究使用室内爆炸室来测量土壤尘埃中的激光反射散射. 结果显示尘埃度峰值较早,影响激光检测,与图像灰色值相关.
科学领域:
- 物理 物理学 物理
- 工程 工程师 工程师 工程师
- 环境科学 环境科学
背景情况:
- 基于激光的检测系统在爆炸产生的土壤尘埃环境中难以准确.
- 在这样的条件下进行实地测试是危险的,并且缺乏环境控制.
研究的目的:
- 开发一种安全和可控的方法来评估通过土壤爆炸尘埃的激光传输.
- 在受控的尘埃环境中分析激光反射回散的回声强度的特征.
主要方法:
- 利用高速摄像机和室内爆炸室来模拟土壤爆炸尘埃.
- 研究了爆炸物质量,埋葬深度和土壤水分对尘埃分布的影响.
- 在不同高度测量了905nm激光器的反射回声强度.
主要成果:
- 土壤爆炸尘埃度在爆炸后的前500秒内达到峰值.
- 最小的正常化峰值回声电压在0.318和0.658.8之间变化.
- 激光反射强度与尘埃图像的平均灰色值有很强的相关性.
结论:
- 该研究提供了一种可行的室内方法,用于评估激光在尘埃中的性能.
- 实验数据为改善在具有挑战性的环境中激光检测提供了理论基础.
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