System Identification and Feedback Control of Mold Surface Temperature Using Infrared Imaging Sensors

使用红外成像传感器的模具表面温度的系统识别和反馈控制

• 批准号: 9261610
• 负责人: Raman Mehra
• 金额: $ 5万
• 依托单位: SCIENTIFIC SYSTEMS COMPANY INC
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 1993
• 资助国家: 美国
• 起止时间: 1993-01-01 至 1993-09-30
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9261610&HistoricalAwards=false
• 关键词: System; Identification; Feedback; Control; Mold

Accurate control of the mold interior surface temperature is critical for quality production of plastic parts. Currently, most of the injection molding machines use open loop control without any direct measurement of the mold surface temperature. The control variables are water temperature and valve settings for the cooling/heating water that is circulated through the mold. Recently closed loop systems with thermocouple measurements have become available, but provide only limited usefulness. This proposal discusses an innovative design for two dimensional temperature monitoring and regulation using an infrared sensor, image processing and robust controller design using modern control theory approaches. Experimental data will be collected during Phase I by Nalge Company, a leading plastics manufacturer, to validate the accuracy of temperature estimation using infrared camera, to identify models for controller design and to verify the performance of the closed loop controller. Phase II will consist of actual on-line demonstration of the system in an operational environment.

精确控制模具内表面 温度对高质量生产至关重要， 塑料零件 目前，大多数注射 成型机使用开环控制， 模具表面的任何直接测量 温度 控制变量为水 温度和阀门设置， 冷却/加热水循环通过 模具. 最近的闭环系统， 热电偶测量已成为 它是可用的，但只能提供有限的用途。 这 建议讨论了一个创新的设计， 尺寸温度监测和调节 使用红外传感器、图像处理和 基于现代控制的鲁棒控制器设计 理论接近。 实验数据将 Nalge公司在第一阶段收集的a 领先的塑料制造商，以验证 红外测温精度 相机，以确定控制器设计的模型， 验证闭环的性能 controller. 第二阶段将包括实际在线 在操作系统中演示该系统 环境