Development of Computer Vision Measurement System for Magnetic Head Pitch and Roll Angles of the Single Head Arm Assembly in Hard Disk Driver
The researches on the high efficient, safe and accurate measurement system of magnetic head pitch and roll angles for the HAA in HDD are relatively lack now. In this paper, the perspective projection transformation of the magnetic head object point in the reference image plane was expressed by using the rotary tensor transformation matrix, and the principle for projection deviation angle between the actual object point and ideal object point was derived. Thus, the measurement system hardware with two sets of two-dimensional platforms and CCD camera for measuring magnetic head spatial pitch and roll angles was established, and based on Wit7.0 toolkit and using Microsoft VB6.0 programming language, the measurement system software were obtained by secondary development. Also, the stable performance of the measurement system based on computer vision was demonstrated in the practical application.
pitch and roll angles measurement computer vision HAA
Zhen Chen Zhi-Min Liu Yong-Chun Xu
Key Laboratory of Key Technology on Agricultural Machine and Equipment (South China Agricultural Uni Key Laboratory of Key Technology on Agricultural Machine and Equipment (South China Agricultural Uni Department of Computer Science Guangdong Polytechnic Institute Guangzhou, P.R.China
国际会议
The 2nd IEEE International Conference on Advanced Computer Control(第二届先进计算机控制国际会议 ICACC 2010)
沈阳
英文
92-95
2010-03-27（万方平台首次上网日期，不代表论文的发表时间）