一种可编程超声物位计  

A Programmable Ultrasonic Material Level Meter

作　　者：高克成[1] 周欣樱 杨有权[1] 王瑜[1] 阎玉舜[2] 朱海庆[2] 

机构地区：[1]上海工业自动化仪表研究所,上海200233 [2]同济大学,上海200092

出　　处：《自动化仪表》1996年第3期28-31,共4页Process Automation Instrumentation

摘　　要：介绍一种以微机为基础的可编程超声物位计.其测量范围为1.5～21.5m,测量点为l～16个,精确度为1%FS,盲区为1.5m,输入信号为4～20mADC,数字显示仓号、测量状态及物位值.文末还给出了该产品的现场试验结果.A programmable ultrasonic material level meter based on microcomputer is introduced. The measuring range is 1.5 to 21.5 meter with 1 to 16 measuring points. The accuracy is 1% f.s., while the blind area is 1.5 meter. The input signal is 4 to 20 mA DC. Digital displays for bin number, measuring status and level are presented. The testing results in the field are given.

关 键 词：超声物位计 数学模型 信号处理 程序控制器 

分 类 号：TH816.2[机械工程—仪器科学与技术]