电阻炉温度控制系统1.doc

电阻炉温度控制系统 摘 要 关键词： Resistance furnace temperature control system Abstract Since this century 30's, the automated technology has obtained astonishing achievement let is playing the key role in the industrial production and the science development. The automatic control theory passed through several dozens years consummation, the control system development has also experienced has conformed to simplicity the single form to the complex form, from the partial automation to the overall situation automation, from the preliminary intelligence to the high-level intelligent developing process, this period several changes has all urged the productive forces enormous leap This article introduced the tubular resistance furnace temperature control system design process. This process mainly is composed by three parts: Must design the resistance furnace the temperature control system, first must understand this is controlled the object the temperature characteristic. In the article the first part then introduced the resistance furnace temperature characteristic test experiment. Then proposed in view of the resistance furnace temperature characteristic and the laboratory existing condition the use electrically operated combination measuring appliance (DDZ-III) the measuring appliance composes a set of single closed loops negative feedbacks system the control plan, has composed the resistance furnace temperature control system. This talks about in the paper third part. The paper second part narrates the PID control technology, in which involves to the PID control principle and the characteristic and the PID realization and the parameter firmly grades the question This design temperature control system was measured the object is in the laboratory the common tubular resistance furnace, is controlled the parameter is in the resistance furnace stove the temperature. The thermo-element examines in the stove as the temperature element the temperature, the control system changes by the