GPIB总线及应用技术

介绍了通用接口总线(GPIB)及其应用。阐述了GPIB特点、性能、系统、接口卡及其自动测量系统的软件结构。最后,利用PC机、带GPIB的标准源、数字万用表组成一基于GPIB的自动化测试系统。该系统可减少工作量,并提高检测速度和可靠性。

GPIB接口标准及在测量系统中的应用实例

本文在回顾GPIB历史的基础上 ,着重论述了GPIB接口的结构和主要接口功能 ,然后给出与其它总线的简单比较 ,最后给出一个基于GPIB的由PC机。

Phasor measurement units, WAMS, and their applications in protection and control of power systems

The paper provides a short history of the phasor measurement unit(PMU) concept. The origin of PMU is traced to the work on developing computer based distance relay using symmetrical component theory. PMUs evolved from a portion of this relay architecture. The need for synchronization using global positioning system(GPS) is discussed, and the wide area measurement system(WAMS) utilizing PMU signals is described. A number of applications of this technology are discussed, and an account of WAMS activities in many countries around the world are provided.

一种新型仪器网络接口装置的研制

针对大量现有智能仪器自身不带网络接口,利用嵌入式系统等技术,研制出一款新型仪器网络接口装置。该装置能使带GPIB接口或USB接口的智能仪器直接与因特网连接,参与构建基于因特网的远程测控系统。还从实用化和吸纳新技术等出发,对研制这类装置提出若干改进设想。