A design of a low cost high precision data acquisition system

被引：0

作者：

Li, DS ^{[1
]}

机构：

[1] Taiyuan Univ Technol, Dept Comp Sci & Technol, Taiyuan 030024, Peoples R China

来源：

PROCEEDINGS OF THE 4TH WORLD CONGRESS ON INTELLIGENT CONTROL AND AUTOMATION, VOLS 1-4 | 2002年

关键词：

V/F transform; A/D transform; single chip microcomputer; interface; watch dog circuit;

D O I：

暂无

中图分类号：

TP [自动化技术、计算机技术];

学科分类号：

0812 ;

摘要：

The topic presets the high precision data acquisition system with LM231 A/F transform chip and single chip microcomputer with low cost. The V/F transformer is characteristic of high precision, high liner and it can be with simple peripheral circuit, easy to realize A/D transform for measurement of analog in the field of industrial field. The single chip microcomputer is direct to interface with LM231 chip that has the light-electricity coupling circuit, to improve system working security. Full use of resource of hardware and software, the system identifier rate reaches 12 digits and its accurate is 0.02%. The system is available for use in the field of measurement of weight system, voltage, current intensity, methane density etc. In the case of long distance between sensitive and upper computer, we can use RS-485 interface or wireless data transmitting/reserve module to remote data communication.

引用

页码：2996 / 2999

页数：4