| 电阻炉温度微机控制系统的研制 |
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| 引用本文： | 黎步银,周东祥,吕文中,姜胜林. 电阻炉温度微机控制系统的研制[J]. 华中科技大学学报(自然科学版), 1996, 0(12) |
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| 作者姓名： | 黎步银 周东祥 吕文中 姜胜林 |
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| 作者单位： | 华中理工大学固体电子学系 |
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| 摘 要： | 以个人计算机为基础，以Ａ／Ｄ转换器为核心，并配以适当的外围接口电路，实现对电阻炉温度自动控制．设计了一种过零检测电路，将ＰＩＤ控制增量转换成占空比，并由数字电路输出有一定占空比的矩形波，利用硬件方法实现普通双向可控硅的同步过零触发从而实现功率可调
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| 关 键 词： | 电阻炉；可控硅；过零检测；同步触发 |
A Microcomputer Based Automatic Temperature Control System for the Electrical Furnace |
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| Li Buyin Dept. of Solid State Electronics,HUST,Wuhan ,China. Zhou Dongxiang Lu Wenzhong Jiang Shenglin. A Microcomputer Based Automatic Temperature Control System for the Electrical Furnace[J]. JOURNAL OF HUAZHONG UNIVERSITY OF SCIENCE AND TECHNOLOGY.NATURE SCIENCE, 1996, 0(12) |
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| Authors: | Li Buyin Dept. of Solid State Electronics HUST Wuhan China. Zhou Dongxiang Lu Wenzhong Jiang Shenglin |
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| Affiliation: | Li Buyin Dept. of Solid State Electronics,HUST,Wuhan 430074,China. Zhou Dongxiang Lu Wenzhong Jiang Shenglin |
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| Abstract: | Automatic temperature control of the electrical furnace is realized by suitable peripheral interface circuits as well as the A/D converter board on the basis of the personal computer and a zero crossing detecting circuit is designed. The control increment of PID is converted into the duty ratio, and a rectangular wave with a given duty ratio is sent out by a digital circuit. With hardware to realize the synchronous zero crossing trigger of an ordinary bidirectional SCR, the power output of the system is adjustable. |
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| Keywords: | electrical furnace silicon controlled rectifier zero crossing detection synchronous trigger |
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