第一章绪论1.1课题的研究背景随着电子电路技术的发展，频率计的设计技术不断发展。在二十世纪初，设计者通常使用分立元件来设计频率计。在设计周期和稳定性方面存在诸多缺陷，生产的产品体型较...

微细电解线切割机床设计摘要微细电解线切割加工时一种结合了电解加工和线切割的新型加工工艺，以电解加工为基本原理，采用导电铜丝为工具电极，被加工块、板件工件、难切削材料、难切削形状作为...

基于单片机的仓储环境检测系统设计摘要：系统以单片机STC89C52RC作为控制处理核心，采用芯片nRF905为无线传输模块，HS1100/HS1101传感器采集湿度信号，同时运用基于单片机AT89C52的温湿度计，设...

Design of Intelligent Car Based on IAP15W4K58S4AbstractWith the development of the times and the progress of science,people's quality of liferequirements are getting higher and hig...

ABSTRACTIn the 21st century,our people's life has also entered a well-off society.With the improvement ofliving standards,I chose some common life gases in my graduation project,am...

(一）整体设备安装13(二)调试及结果3六、总结与展望，14(一)总结分析…14(二)未来展望14致谢….16参考文献…..17

AbstractLight-emitting diode (Light Emitting Diode,LED)appeared in the later 20thcentury as a new lighting source.LED play an important part in energy saving andenvironmental prote...

图3-55110显示电路16163.3.4键l图3-6按键少3.3.5红外激光测距模块.17图3-7测距模块173.3.6复位电路..17图3-8复位电路183.3.7时钟电路……18图3-9时钟电路193.3.8蜂鸣器电路19图3-10蜂鸣器电路....

摘要照明作为人类电力消耗的主要形式，每年60%以上的电能用于照明领域。当前国内照明存在较为明显的能源浪费问题，公共场所如学校、图书馆、小区等在无人的情况下大量点亮灯具，不但引起电力能...

ABSTRACTRadio frequency identification(RFID)is the abbreviation of radio frequencyidentification.The principle of this method is non-contact data communication betweenreader and ta...