排序方式: 共有33条查询结果,搜索用时 15 毫秒
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ADesignofFormingHodsonMachiningCorrectedCycloidalGears¥GONGZheiiqi;GONGHaitao(龚振起,龚海涛)(Dept.ofPreciseInstrumentation,HarbinIn... 相似文献
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针对桑基图软件的特点及技术需求,提出了在组态软件中嵌入桑基图开发模块的设计方案.讨论了在开发环境和运行环境下如何实现桑基图的组态和运行.用图形自动识别及关联、实时数据库绑定、图形位置动态计算等实现了桑基图组态简便、运行效果理想的目标.所提出的设计方案成功在现有组态软件基础上实现桑基图的开发和运行,对于组态软件在工业生态学、能源管理、环境管理、货币流通管理等诸多领域中发挥更加重要的作用具有重要意义. 相似文献
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结合某炼钢厂信息化改造项目的实施,介绍了客户机/服务器模式的体系结构,采用了动态数据交换(DDE),组件对象技术和数据库技术,设计了一种较为合理的企业局域网内信息交互的解决方案,方案的实施实现现场控制层到信息层全面、无缝的信息集成,达到高效的局域网远程监控,为全公司的信息化管理打下坚实的基础。 相似文献
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采用Marx发生器作为脉冲功率源,用螺旋天线作为辐射系统,设计了一种紧凑型宽实验结果为:辐射场中心频率为171 MHz,2 m处最大辐射场为10.5 kV/m。谱辐射源,用于宽带天线技术研究。充电系统采用24 V锂电池逆变倍压产生几十kV的交流高压,给脉冲功率系统供电。10级Marx发生器设计为同轴结构,最大输出电压200 kV,整个Marx发生器尺寸为ф150 mm×550 mm。Marx发生器产生的脉冲经过辐射系统,最后通过螺旋天线辐射出去。 相似文献
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Plasma immersion ion implantation(PⅢ) overcomes the direct exposure limit of traditional beamline ion implantation, and is suitable for the treatment of complex work-piece with large size. PⅢ technology is often used for surface modification of metal, plastics and ceramics. Based on the requirement of surface modification of large size insulating material, a composite full-directional PⅢ device based on RF plasma source and metal plasma source is developed in this paper. This device can not only realize gas ion implantation, but also can realize metal ion implantation, and can also realize gas ion mixing with metal ions injection. This device has two metal plasma sources and each metal source contains three cathodes. Under the condition of keeping the vacuum unchanged, the cathode can be switched freely. The volume of the vacuum chamber is about 0.94 m~3, and maximum vacuum degree is about 5?×?10~(-4) Pa. The density of RF plasma in homogeneous region is about 10~9 cm~(-3), and plasma density in the ion implantation region is about 10~(10) cm~(-3). This device can be used for large-size sample material PⅢ treatment, the maximum size of the sample diameter up to 400 mm. The experimental results show that the plasma discharge in the device is stable and can run for a long time. It is suitable for surface treatment of insulating materials. 相似文献
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基于SIMATIC PCS7,运用CP341模块成功实现了罐区监控系统中Modbus与PCS7的通信. 相似文献