[14a-K304-1~11] 3.7 Optical measurement, instrumentation, and sensor

12:00 PM - 12:15 PM JST(3:00 AM - 3:15 AM UTC)

[14a-K304-11] Quantitative evaluation of fog and smoke in the high transmittance range
by using LD mini-Lidar

〇Seiya Oyama^1,2, Masayuki Tanaka², Michihiro Nakai², Masakazu Hanashima², Yusuke Shida¹, Tatsuo Shiina¹ (1.Chiba Univ., 2.OPT Gate)

Keywords:

Lidar,Optical Sensing

Capturing the behavior of fog and smoke in the early stage of their development is expected to be useful for hazard prediction and safety measures. In order to detect the distance behavior of fog and smoke, it is important to quantitatively evaluate the fog and smoke at low density, or in other words, at high light transmittance (especially in the high transmittance region of 90% or more). In order to achieve both high sensitivity, high speed, and high resolution, we have developed an LD mini-lidar employing a photon counter for quantitative evaluation in the high transmittance region of 90% or higher.