新型集散控制系统CS1000在氯化苯生产中的应用

介绍了CENTUMCS1000系统的构成与特点,详细论述了CENTUMCS1000型集散控制系统(DCS)的结构、软硬件配置,在氯化苯生产项目中的组态情况。系统投人运行后可靠性高、功能强、操作简单,确保了生产的长期性、稳定性,大大减少了维护工作量,提高了自动化程度。     

Development and experimental characterization of micromachined electromagnetic probes for biological manipulation and stimulation applications

We present the design, fabrication and experimental characterization of a new micromachined electromagnetic probe, which can be readily adapted to various biological manipulation and stimulation applications. The micro electromagnetic probe consists of a protruding (out-of-chip), sharp Permalloy needle embedded into a three-dimensional gold conducting coil. The probe fabrication is carried out using traditional surface micromachining processes coupled with assembly techniques. This hybrid approach significantly reduces fabrication difficulties and provides a simple and straightforward technique to realize integrated core-coil geometries. Furthermore, by using a scanning Hall probe microscope (SHPM), a comprehensive, high-spatial resolution characterization of the probe performance (e.g. peak magnetic intensity and spatial field distribution) is achieved for the first time. The manipulation of sub-micron sized magnetic particles with the developed micro electromagnetic probe is also demonstrated.