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美国水文仪器代表团在1990年5月访华期间向中国同行们介绍了他们优先研制的项目之一——基本数据记录器BDR。BDR可通过SDI——12数字式串行接口(或者模拟输入口)与各种智能式传感器相连;还可通过RS——232接口与便携式计算机相连,从而完成测量、数据处理、存贮及数据转储等任务。本文介绍的ESC80型数据记录器就是其中的一种,其余型号的BDR的基本功能是大致相同的。一、概述 ESC80型数据记录器是一种以微处理器为基础的数据获取系统,经专门设计可
During his visit to China in May 1990, the delegation of American hydrological instruments introduced to Chinese counterparts one of their preferred projects - the basic data recorder BDR. The BDR can be connected to a variety of smart sensors via the SDI - 12 digital serial interface (or analog input) and to the portable computer via the RS - 232 interface for measurement, data processing, storage and data Dump and other tasks. This article describes one of the ESC80 type data logger, the basic functions of the remaining models of the BDR is roughly the same. First, an overview ESC80 type data recorder is a microprocessor-based data acquisition system, specially designed to