In-situ soot particle sensing in an aero-engine exhaust plume
In-situ soot particle sensing in an aero-engine exhaust plume
复制标题
航空发动机排气羽流中的原位烟灰颗粒传感
DOI：
10.1109/icsens.2013.6688442
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发表时间：
2013
期刊：
影响因子：
--
通讯作者：
Yutong Feng
中科院分区：
文献类型：
--
作者：
D. Mccormick;K. Ozanyan;J. Black;Yutong Feng
本文报道了利用光纤激光产生一种改进的直升机燃气涡轮发动机排气羽流中吸收粒子分布的空间分辨图像。使用比传统激光诱导白炽（LII）具有更高功率、更长的脉冲持续时间和更高的脉冲重复率的光纤激光器，演示了激光诱导白炽（LII）对烟灰颗粒的原位传感。通过对发动机运行前环境吸收颗粒的检测，说明了该方法的灵敏度。当引擎运行时，在0.01s内获得图像。使用光纤激光器演示LII是开发长脉冲LII新模型的第一步。
This paper reports the use of a fiber-laser to produce spatially resolved images of the distribution of absorbing particles in the exhaust plume of a modified helicopter gas turbine engine. In-situ sensing of soot particles by Laser-Induced Incandescence (LII) is demonstrated using fiber-lasers with higher power, longer pulse duration, and higher pulse repetition rates than conventional LII. The sensitivity of the method is illustrated by the detection of ambient absorbing particles prior to engine running. With a running engine images are obtained in 0.01s. The demonstration of LII using fiberlasers is a first step in the development of a new model for long-pulsed LII.