Description: 温度是工业生产的重要参数之一，在化工、食品等诸多工业生产过程中必须对温度进行控制。随着控制理论和电子技术的发展，温度控制技术由传统的PID控制发展到高度智能化控制。其中以单片机为核心实现的数字控制器因其体积小、成本低、功能强、简便易行而得到广泛应用。本文主要阐述了基于单片机的温度控制系统的硬件组成、软件设计及相关的接口电路设计。-Industrial production temperature is one of the important parameters in the chemical, food and many other industrial processes must be carried out of temperature control. With the control theory and the development of electronic technology, temperature control technology from the development of the traditional PID control to a high degree of intelligent control. Among them, single-chip microcomputer as the core of the digital controller to achieve because of their small size, low cost, powerful, simple and widely used. In this paper, the single-chip microcomputer-based temperature control system hardware components, software interface design and circuit design. Platform: |
Size: 411648 |
Author:张超 |
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Description: 一种基于AT89C51单片机的智能温度控制器，采用K型热电偶和专用冷端温度补偿芯片MAX6675构成温度测量电路，由MAX6675输出的数字信号直接送入单片机，一方面通过 LCD 将温度显示出来；另一方面，将该温度与设定的温度值进行比较，根据其偏差的大小，采用改进的数字PID算法对其进行处理得到控制信号，此信号经过D\A转换器DAC0832转换为模拟量输出0～5V。- kind of based on AT89C51 intelligent temperature controller, the K thermocouple and special type of the cold end temperature compensation MAX6675 constitute a temperature measurement circuit chip, MAX6675 output by the digital signal directly into the single chip microcomputer, on the one hand, through the LCD will display temperature On the other hand, will the temperature and setting value, compared the deviation according to the size of the digital PID algorithm of the improved the processing get control signal, the signal through D \ A converter DAC0832 into analog output 0 ~ 5 V.
Platform: |
Size: 12288 |
Author:wangna |
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Search - pid temperature controller circuit