matlab绘制的3d地球仪
上传时间： 2016-06-30
上传用户：zcwl
对微机电系统(micro electro mechanical systems，MEMS)组装与封装工艺的特点进行了总结分析，给出了MEMS组装与封装设备的研究现状。针对MEMS产业发展的特点，分析了面向MEMS组装与封装的微操作设备中的工艺参数优化数据库、快速精密定位、模块化作业工具、快速显微视觉、柔性装夹和自动化物流等关键技术。在此基础上，详细介绍了研制的MEMS传感器阳极化键合设备和引线键合设备的组成结构，工作原理，并给出了组装和封装试验结果。最后，指出了MEMS组装与封装技术及设备研制的发展趋势。
上传时间： 2016-07-26
上传用户：leishenzhichui
A major societal challenge for the decades to come will be the delivery of effective medical services while at the same time curbing the growing cost of healthcare. It is expected that new concepts-particularly electronically assisted healthcare will provide an answer. This will include new devices, new medical services as well as networking. On the device side, impressive innovation has been made possible by micro- and nanoelectronics or CMOS Integrated Circuits. Even higher accuracy and smaller form factor combined with reduced cost and increased convenience of use are enabled by incorporation of CMOS IC design in the realization of biomedical systems. The compact hearing aid devices and current pacemakers are good examples of how CMOS ICs bring about these new functionalities and services in the medical field. Apart from these existing applications, many researchers are trying to develop new bio-medical solutions such as Artificial Retina, Deep Brain Stimulation, and Wearable Healthcare Systems. These are possible by combining the recent advances of bio-medical technology with low power CMOS IC technology.
上传时间： 2017-02-06
上传用户：linyj
本设计利用德国西门子PLC S7-200进行电镀行车自动化控制。在本次设计中，从电镀行车在生产现场的运行环境和自动控制技术器件在国内的应用前景来考虑，以电镀行车具备自动生产运行为目的，制定了采用在当前及以后都应用广泛且能适应多种环境的可编程控制器PLC来控制整个工作流程的方案。首先对系统的软硬件进行设计，给出系统的工作流程图、硬件接线图、PLC控制I/O端口分配表及整体程序流程图。并以STEP7 micro/WIN32为编程软件设计出电镀行车自动控制系统的梯形图，最后通过仿真实验，实现了电镀行车自动化控制，提高了电镀生产效率，降低了劳动强度。
上传时间： 2017-11-11
上传用户：狂暴老戴
ZCORE系列NBIOT开发底板资料开源。 NBIOT开发板主要接口： micro USB *1 3.7V电池充电电路 庆科WIFI模块支持 贴片SIM卡支持 STM32L433全部外围接口已拉出为2.0排针
上传时间： 2018-04-25
上传用户：pshr960405
1602,LCD,液晶,使用手册 1602 = 16个字符/行 * 2行 = 像素 16*2
上传时间： 2018-05-10
上传用户：phg210
The rapid growth in mobile communications has led to an increasing demand for wide- band high data rate communications services. In recent years, Distributed Antenna Systems (DAS) has emerged as a promising candidate for future (beyond 3G or 4G) mobile communications, as illustrated by projects such as FRAMES and FuTURE. The architecture of DAS inherits and develops the concepts of pico- or micro-cell systems, where multiple distributed antennas or access points (AP) are connected to and con- trolled by a central unit.
标签： Distributed Antenna Systems
上传时间： 2020-05-27
上传用户：shancjb
Applications of microelectromechanical systems (MEMS) and microfabrica- tion have spread to different fields of engineering and science in recent years. Perhaps the most exciting development in the application of MEMS technol- ogy has occurred in the biological and biomedical areas. In addition to key fluidic components, such as microvalves, pumps, and all kinds of novel sensors that can be used for biological and biomedical analysis and mea- surements, many other types of so-called micro total analysis systems (TAS) have been developed.
标签： Applications Technologies Bio-MEMS and
上传时间： 2020-06-06
上传用户：shancjb
The mature CMOS fabrication processes are available in many IC foundries. It is cost-effective to leverage the existing CMOS fabrication technologies to implement MEMS devices. On the other hand, the MEMS devices could also add values to the IC industry as the Moore’s law reaching its limit. The CMOS MEMS could play a key role to bridge the gap between the CMOS and MEMS technologies. The CMOS MEMS also offers the advantage of monolithic integration of ICs and micro mechanical components.
标签： TECHNOLOGY CMOS MEMS KEY
上传时间： 2020-06-06
上传用户：shancjb
For more than three decades, micro Electro Mechanical Systems (MEMS) have steadily transitioned out of research labs and into production forming a more than $10 billion market [1]. MEMS devices such as accelerometers, pressure sensors and microphones, to name a few, have seen immense utilization, particularly in the consumer electronics market, because of their compact sizes and minute power consumptions. In addition, these devices benefit from batch fabrication, which has enabled year-over-year reductions in cost [2]. In recent years,
上传时间： 2020-06-06
上传用户：shancjb
