In this paper,a non-contact auto-focusing method is proposed for the essential function of auto-focusing in mobile devic......

基于PXI-7851R板卡硬件,设计开发了一种发动机曲轴位置传感器与凸轮轴位置轴传感器信号模拟系统,该系统可为ECM（发动机电控单元）测试......

In this paper, a non?contact auto?focusing method is proposed for the essential function of auto?focusing in mobile devi......