基于LabWindows/CVI5.0的程控锁相放大器研制  

Development of the Programme Control Lock- in-amplifier Based on the Lab Win- dows/CVI5.0

作　　者：郝学元[1] 陈家胜[1] 

机构地区：[1]南京师范大学物理科学与技术学院,南京210097

出　　处：《仪器仪表学报》2001年第z2期311-312,共2页Chinese Journal of Scientific Instrument

摘　　要：采用自制数采卡和 L IA- MV- 15 0锁相放大模块 ,在 NI公司 L ab Windows/ CVI5 .0虚拟仪器设计平台上 ,研制了一种用于微弱信号测量的程控锁相放大器。Based on the virtual instrument design platform L ab Windows/CVI5 .0 ,we develop the programme control lock- in- amplifier that has the automatic adjustment function of test parameter,using DAQ card and lock- in- amplifier module. Itcan use as the independentinstrumentand conveniently be formed to the automatic test system. This paper introduces the design methods of hardware and software.

关 键 词：LABWINDOWS/CVI 虚拟仪器(VI) 锁相放大器 

分 类 号：TP21[自动化与计算机技术—检测技术与自动化装置]