As a key component of injection molding,multi-cavity hot runner(MCHR)system faces the crucial problem of polymer melt filling imbalance among the cavities.The thermal imbalance in the system has been considered as the...As a key component of injection molding,multi-cavity hot runner(MCHR)system faces the crucial problem of polymer melt filling imbalance among the cavities.The thermal imbalance in the system has been considered as the leading cause.Hence,the solution may rest with the synchronization of those heating processes in MCHR system.This paper proposes a’Master-Slave’generalized predictive synchronization control(MS-GPSC)method with’Mr.Slowest’strategy for preheating stage of MCHR system.The core of the proposed method is choosing the heating process with slowest dynamics as the’Master’to track the setpoint,while the other heating processes are treated as‘Slaves’tracking the output of’Master’.This proposed method is shown to have the good ability of temperature synchronization.The corresponding analysis is conducted on parameters tuning and stability,simulations and experiments show the strategy is effective.展开更多
微控制单元(Micro Control Unit,MCU)集成电路技术具有强大的处理能力和可配置性,能有效支持复杂的数据处理和控制任务。智能仪器仪表对高精度、高可靠性及良好用户交互性的高标准需求,正驱动着相关人员探索先进的硬件电路设计方案,以...微控制单元(Micro Control Unit,MCU)集成电路技术具有强大的处理能力和可配置性,能有效支持复杂的数据处理和控制任务。智能仪器仪表对高精度、高可靠性及良好用户交互性的高标准需求,正驱动着相关人员探索先进的硬件电路设计方案,以适应日益严苛的工业应用标准。介绍基于MCU集成电路技术的智能仪器仪表的硬件电路设计与实现,阐述关键组件的选择与设计、印制电路板(Printed Circuit Board,PCB)布局设计等,并探讨硬件电路的实现,旨在为智能仪器仪表的设计提供一套完整的解决方案。展开更多
基金supported in part by National Natural Science Foundation of China(62203127)Basic and Applied Basic Research Project of Guangzhou City(2023A04J1712)+1 种基金The Foshan-HKUST Projects Program(FSUST19-FYTRI01)GDAS’Project of Science and Technology Development(2020GDASYL-20200202001).
文摘As a key component of injection molding,multi-cavity hot runner(MCHR)system faces the crucial problem of polymer melt filling imbalance among the cavities.The thermal imbalance in the system has been considered as the leading cause.Hence,the solution may rest with the synchronization of those heating processes in MCHR system.This paper proposes a’Master-Slave’generalized predictive synchronization control(MS-GPSC)method with’Mr.Slowest’strategy for preheating stage of MCHR system.The core of the proposed method is choosing the heating process with slowest dynamics as the’Master’to track the setpoint,while the other heating processes are treated as‘Slaves’tracking the output of’Master’.This proposed method is shown to have the good ability of temperature synchronization.The corresponding analysis is conducted on parameters tuning and stability,simulations and experiments show the strategy is effective.
文摘微控制单元(Micro Control Unit,MCU)集成电路技术具有强大的处理能力和可配置性,能有效支持复杂的数据处理和控制任务。智能仪器仪表对高精度、高可靠性及良好用户交互性的高标准需求,正驱动着相关人员探索先进的硬件电路设计方案,以适应日益严苛的工业应用标准。介绍基于MCU集成电路技术的智能仪器仪表的硬件电路设计与实现,阐述关键组件的选择与设计、印制电路板(Printed Circuit Board,PCB)布局设计等,并探讨硬件电路的实现,旨在为智能仪器仪表的设计提供一套完整的解决方案。
