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本文介绍一种机电一体化、微型机控制的隧道式窑炉微型机控温系统,它是以 TP801单板机为核心,以温度传感器、毫伏放大单元、多路 A/D 变送单元、打印机、多路可控硅触发单元等组成的一个多路闭环控温系统的实例。着重介绍铂铑—铂电偶分度表,用拉格郎日插值定理抽象为简易数学模型,按区段分别处理,导出电势—温度转换值,以便获取占用内存空间少且具有较高的精度。还介绍了系统的控制软件以及系统的调整方法。
This article introduces a mechatronic, microcomputer-controlled tunnel kiln microcomputer temperature control system, which is TP801 single-core machine as the core, with temperature sensor, millivolt amplifier, multi-channel A / D transmitter, Printer, multi-channel SCR trigger unit composed of a multi-channel closed-loop temperature control system example. Platinum and rhodium - platinum couple table is emphatically introduced. The Lagrangian interpolation theorem is abstracted into a simple mathematical model and processed separately according to the sections to derive the potential-temperature conversion value so as to obtain less occupied memory space and higher accuracy. Also introduced the system control software and system adjustment method.