现代电子技术2012，Vol.35Issue(15)：82-86,5.
单逻辑芯片多通道频率计的虚拟仪器设计
Design of virtual instrument of multichannel frequency meter based on single logical chip
摘要
Abstract
A design scheme of a virtual instrument which has the function of multichannel frequency meter is proposed in the paper, which overcomes multichannel signal jamming and improves the stability of measurement. The system includes four parts: data collection,data processing, data transmission and application software. The system uses equal precision technology to measure the frequency of 32-channel signals and communicates with computers through RS 232 serial communication interface. And application software of the system is written in Borland C++ Builder, which can control hardware circuits and display the data collected by FPGA. The simulation and experimental results show that the design scheme is feasible and valuable. The system can be used in petroleum field as a testing equipment to monitor downhole sensors and improve testing efficiency.关键词
FPGA/虚拟仪器/等精度测量/频率计Key words
FPGA/virtual instrument/equal precision measurement/frequency meter分类
信息技术与安全科学引用本文复制引用
施维岳,双凯..单逻辑芯片多通道频率计的虚拟仪器设计[J].现代电子技术,2012,35(15):82-86,5.基金项目
国家自然科学基金资助项目(61072074) （61072074）
