宽频高精度电感同步采样测量研究.doc

宽频高精度电感同步采样测量研究
齐福强1,杨雁2,迟宗涛1,张艳丽1
(1. 青岛大学自动化学院,青岛 266071;2. 中国计量科学研究院,北京 100029)
摘要:为实现较宽频率范围内电感量值的准确测量,提出一种基于同步采样测量的改进电压矢量比法。通过NI-5922高速数据采集卡进行同步数据采集,运用LabVIEW设计了自动测量系统来实现精密的电感测量,确保1 %。文章讨论了测量系统原理,同步数据采集和数据处理的实现。该测量系统亦可用于各类交流阻抗精密快速测量。
关键词:电感;阻抗测量;同步采样;电压矢量比;虚拟仪器
中图分类号: 文献标识码:B 文章编号:文章编号:1001-1390(2016)00-0000-00
Research on synchronous sampling measurement of wide band high precision inductance
synchronous sampling measurement
Qi Fuqiang1,, Yang Yan2,, Chi Zongtao1,, Zhang Yanli1
(( of Automation Engineering, Qingdao University, Qingdao 266071, China.;
2. National Institute of Metrology, Beijing 100013, China))
Abstract:: In order to realize the accurate measurement of inductance in different wide frequencies, an improved voltage vector ratio method based on synchronous sampling is proposed. Synchronous data acquisition is realized by NI-5922 high speed data acquisition card, and the automatic measurement system is designed by ponent oriented technology of LabVIEW to achieve precise inductance measurement. The system can precisely measure inductance with accuracy up to % in the range of 1H at different frequency. The measurement principle, the achievement of synchronous data acquisition and data processing are discussed. This measuring system can also be used to quickly measure any kinds of AC impedance.
Key words:: Inductan