【摘要】：針對(duì)半導(dǎo)體制冷片升降溫速度快并且可逆的特點(diǎn),設(shè)計(jì)一種基于半導(dǎo)體制冷片(TEC)為控溫元件,以FX3U-48MT可編程控制器(PLC)為核心的控制單元,采用數(shù)字遞推增量式PID控制算法來(lái)對(duì)TEC進(jìn)行升降溫的一套高精度溫度控制系統(tǒng),其上位機(jī)采用組態(tài)王King View7.5進(jìn)行監(jiān)控與記錄。系統(tǒng)測(cè)試結(jié)果表明:該系統(tǒng)具有溫度控制精確度高、升降溫速度快、誤差小、可靠性高的特點(diǎn),可以實(shí)現(xiàn)0℃~80℃之間的升降溫功能,且精度可達(dá)0.5℃以內(nèi),在實(shí)際應(yīng)用中可以滿足一般溫控控制系統(tǒng)使用要求。
[Abstract]:In view of the fast and reversible cooling speed of semiconductor cooler, a kind of control unit based on semiconductor cooler (TEC) as temperature control element and FX3U-48MT programmable controller (PLC) as core is designed. The digital recursive incremental PID control algorithm is used to control the temperature of TEC with high precision. The host computer uses Kingview King View7.5 to monitor and record the temperature. The system test results show that the system has the characteristics of high precision of temperature control, high speed of rising and cooling, small error and high reliability. The system can realize the function of raising and cooling temperature between 0 鈩，

本文編號(hào)：2446536