PID温控器选型、应用中的冷端补偿与超调问题处理  

Dealing with Cold-junction Tracking and Over Limit Problems in Selecting and Applying PID Temperature Controller

作　　者：辛洪政[1] 毕莹[1] 常毅[1] 

机构地区：[1]国家电光源质量监督检验中心,北京100022

出　　处：《中国仪器仪表》2011年第7期48-50,共3页China Instrumentation

摘　　要：由于不确定产品的冷端补偿效果,选择、使用热电偶作探测器的PID温控器时,应针对具体应用条件考察其示值数据的可靠性。如果要控制的目标温度不允许超调,除了需要关注其PID运行方式外,还应该对自整定方式加以考虑。When doing model selection and application, the reliability of the temperature given by the controller should be calibrated according to the applied ambient temperature, because of the uncertified cold-junction tracking. Attention should be paid to PID running model and autotune model if the controlled temperature is prohibited to be over limit.

关 键 词：温控器 冷端补偿 PID 自整定 

分 类 号：TH811[机械工程—仪器科学与技术]