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Author:
Journal / Book Title:
Year:
Volume:
Issue:
yi zhong shi yong ce su bian huan dian lu
Author(s):
YU Shengxue
Pages:
68
-
69+30
Year:
1994
Issue:
3
Journal:
Journal of Pingyuan University
Keyword:
测速发电机
;
数字测速
;
变换电路
;
模拟速度
;
调速系统
;
位置控制
;
混合系统
;
速度脉冲
;
单稳电路
;
脉冲整形
;
Abstract:
<正> 一、电路功能简介:目前在矿井罐笼(卷扬机)的[数字/模拟)混合系统中,通常需要两个测速发电机作为测速通道:采用数字测速机用于行程位置控制;而采用模拟测速发电机用于模拟调速系统。本电路可以节省模拟测速发电机,一机两用。电路功能如下:1.将数字测速头测出的速度脉冲整形、分频(或倍频、原频),以满足计算机的处理要求。2.数字测速头测出的速度脉,冲可以转变成模拟速度反馈信号,以满足模拟速度环的要求。3.根据两个正交的速度脉冲,提
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