Particle dynamic trajectory measurement method based on asynchronous delay method

• Main Authors: Kong Ming, Dong Ping, Shan Liang, Zhao Jun
• Format: Article
• Language: zho
• Published: National Computer System Engineering Research Institute of China 2020-01-01
• Series: Dianzi Jishu Yingyong
• Subjects: particles; trajectory; measurement; asynchronous; delay
• Online Access: http://www.chinaaet.com/article/3000112456

In order to obtain the details of the moon dust particles dynamic trajectory on the moon, and reduce the damage of the moon dust particles to the aircraft and astronauts, a particle dynamic trajectory measurement method was proposed, based on the asynchronous delay method and the light field camera. During the long exposure time,the trajectory of the particles recorded was used to observe the particles motion state. This topic firstly used a common Charge Coupled Device(CCD) camera to build a two-dimensional measurement system for particle motion trajectory measurement. This method did not require complex image processing algorithms,and used simple superposition of images realized the particle motion trajectory measurement,the measurement system error is 0.28%. It lays the foundation for the three-dimensional measurement of particle trajectory by using the light field camera later.