Implementation of all-optical tristate Pauli X, Y and Z gates based on two-dimensional photonic crystal

In this paper, we have designed and simulated all-optical tristate Pauli X, Y and Z gates using 2D photonic crystal. Simple line and point defects have been used to design the structure. The performance of the structure has been analyzed and investigated by plane wave expansion(PWE) and finite difference time domain(FDTD) methods. Different performance parameters, namely contrast ratio(CR), rise time, fall time, delay time, response time and bit rate, have been calculated. The main advantage of the proposed design is that all the Pauli gates have been realized from a single structure. Due to compact size, fast response time, good CR and high bit rate, the proposed structure can be highly useful for optical computing, data processing and optical integrated circuits.

石化企业乙二醇安全保护系统设计

针对某石化公司乙二醇装置,设计并实现了一个防止火灾和毒气的安全保护系统;利用Tricon配置了系统硬件,它由主系统、工程师站、SOE站、操作站/台、检测单元、声光报警器等组成,并与DCS和LAN通信;采用Tristation1131设计了控制逻辑和控制软件,包含功能相对独立的5个模块:与DCS通信、故障和控制过程问题报警、故障报警、系统自检、主逻辑;应用Intouch设计了友好的人机界面;进行了系统调试;系统的应用取得了预期效果。

基于Tricon的EOEG火灾和气体保护系统

为了防止火灾和毒气泄露,确保安全生产,针对某公司EOEG装置,开发了一个火灾和气体保护系统。利用基于三重模块冗余结构的Tricon配置了系统硬件;采用集成工具Trista-tion1131和工程设计软件Intouch分别设计了系统的控制逻辑和人机界面。系统安装调试及运行结果表明:系统总体组织完善合理,满足控制工艺要求;系统运行平稳,联锁动作准确及时,事件记录完整。系统的应用达到了预期的效果。

TS3000在重油催化装置能量回收机组控制系统中的应用

采用美国TRICONEX公司的TS3000三重化冗余容错控制器对抚顺石化公司石油二厂重油催化装置三机组运行系统进行监测和控制。控制系统主要包括防喘振调节、流量调节、润滑油及动力油压力控制、机组启机条件确认、气压机反飞动调节、ESD紧急停车系统和SOE功能。