HIGH SPEED PHOTOGRAMMETRY IN APPLICATION ON MOTION ANALYSIS OF RELEASING AIRCRAFT UNDERWING MOUNT
高速摄影测量技术在飞机外挂物投放运动分析中的应用

The subject on motion analysis of the releasing mechanism of underwing mount in a new aircraft is described in this article with high speed photogrammetry, which is necessary in new aircraft design and development. The photogramm-etric principle and method, and the field measurement and calibration that are always neglected, are introduced. The writers think that the photographic scale accuracy in fixing photography is not only relative to the accuracy of used equipment but also to the accuracy of test field measurement, the parallelism between the object plane and the image plane, and the levelness of optical axis. The photogr-ammetric accuracy is greatly affected by measuring method, test field and control point determination, and time measurement.