基于LabVIEW的4284A-LCR测量系统的开发  

Development of 4284A-LCR Measurement System Based on LabVIEW

作　　者：李沼岐 王道发 陈爱平 顾大伟 LI Zhaoqi;WANG Daofa;CHEN Aiping;GU Dawei(Department of physics,school of Mathematical sciences,NanJing Tech University,Nanjing 211800,China)

机构地区：[1]南京工业大学数理科学学院,南京211800

出　　处：《自动化与仪器仪表》2021年第9期194-198,共5页Automation & Instrumentation

摘　　要：利用LabVIEW开发了基于安捷伦4284A-LCR测量仪的多功能测量程序。采用Keithley-GPIB488转接线实现计算机USB端口与4284A-LCR测量仪GPIB端口的物理连接。利用LabVIEW中的VISA通讯函数配合4284A的指令集开发了测量程序中各个功能模块,实现计算机程序控制4284A-LCR测量仪。在集成4284A-LCR测量仪前面板测量功能的基础上,测量程序增加了快速设定频率范围、介电频谱测量、实时图形化显示数据以及测量数据存储等功能。结合加热装置和3146A万用表测温功能后,该系统还能够实现介电温谱的测量。A multifunctional measurement program for the Agilent 4284A-LCR instrument was developed based on LabVIEW.The computer and the 4284A-LCR instrument was connected by a Keithley-GPIB488 adapter cable.The VISA communication functions of LabVIEW and the program commands of 4284A were used to develop the functional modules of the measurment program.In this way,the 4284A-LCR instrument is controlled by a computer program.All keys functions on the 4284A-LCR front panel were ported into this program.Further,functions such as frequency range fast setting,dielectric spectrum measurement,real-time graphical display data and measurement data storage were integrated in this program.Combining a heating device with 3146A multimeter,the system was also capable of measuring dielectric temperature spectra.

关 键 词：LABVIEW 介电频谱 介电温谱 LCR测量系统 

分 类 号：TP274[自动化与计算机技术—检测技术与自动化装置] TH73[自动化与计算机技术—控制科学与工程]