基于LabVIEW的随机扫描成像系统高速时间同步方法  

High-speed synchronization scheme for random scanning microscopy based on LabVIEW programming

作　　者：张红民[1] 吕晓华[1] 占成[1] 骆清铭[1] 曾绍群[1] 

机构地区：[1]华中科技大学生物医学光子学教育部重点实验室-武汉光电国家实验室,武汉430074

出　　处：《仪器仪表学报》2007年第3期404-407,共4页Chinese Journal of Scientific Instrument

基　　金：973计划(2004CB520804);国家自然科学基金(30370463;60278017;30328014)资助项目

摘　　要：在虚拟仪器开发平台LabVIEW下,本文提出了一种利用板卡上多功能子系统间硬件时钟关系实现微秒级高速时间同步的方法。将此方法应用到随机扫描成像系统中,实现了声光偏转器的频率控制与信号采集间的高速时间同步,定时精度达到了10μs的设计要求,且具有很好的重复性。An approach to implement microsecond level high-speed synchronization is presented. It utilizes the hardware clock relationship of sub-systems in one multi-function board and is based on LabVIEW, a well-developed virtual instrument workbench. The proposed scheme was applied in the design and implementation of random scanning microscopy, and high-speed timing and synchronization between frequency control of the acoustic-optical deflector and signal acquisition of fluorescence were realized. The requirement. In addition, the timing accuracy has good timing accuracy of 10 μs is derived, which meets the design repeatability.

关 键 词：声光偏转器 显微成像 随机扫描 LABVIEW 高速时间同步 

分 类 号：TP274[自动化与计算机技术—检测技术与自动化装置]