超声波发射 的几种电路
上传时间： 2013-10-10
上传用户：zhuce80001
超声波
上传时间： 2013-11-04
上传用户：xinhaoshan2016
超声波
上传时间： 2013-11-08
上传用户：ZOULIN58
超声波技术
上传时间： 2013-11-11
上传用户：daoxiang126
超声波测距资料
标签： 超声波测距
上传时间： 2013-11-11
上传用户：ligi201200
多远程二极管温度传感器-Design Considerations for pc thermal management Multiple RDTS (remote diode temperature sensing) provides the most accurate method of sensing an IC’s junction temperature. It overcomes thermal gradient and placement issues encountered when trying to place external sensors. PCB component count decreases when using a device that provides multiple inputs.Better temperature sensing improves product performance and reliability. Disk drive data integrity suffers at elevated temperatures. IBM published an article stating that a 5°C rise in operating temperature causes a 15% increase in the drive’s failure rate. The overall performance of a system can be improved by providing a more accurate temperature measurement of the most critical devices allowing them to run just a few degrees hotter.The LM83 directly senses its own temperature and the temperature of three external PN junctions. One is dedicated to the CPU of choice, the other two go to other parts of your system that need thermal monitoring such as the disk drive or graphics chip. The SMBus-compatible LM83 supports SMBus timeout and logic levels. The LM83 has two interrupt outputs; one for user-programmable limits and WATCHDOG capability (INT), the other is a Critical Temperature Alarm output (T_CRIT_A) for system power supply shutdown.
标签： Considerat Design 远程 二极管
上传时间： 2014-12-21
上传用户：ljd123456
提出一种融合Ad hoc网络、GPRS/GSM和PSTN的远程分布式环境状况实时监测系统设计方案。由IEEE 802.15.4标准组建的Ad hoc无线传感器网络负责监测环境温湿度、光照度、煤气及CO浓度等；采用GPRS/GSM模块和嵌入式Modem构造无线网关，实现Ad hoc网络与GPRS/GSM和PSTN的无缝连接，将无线传感器网络采集的数据发送到手机或远端计算机。系统具有小、远和散的特点，可实现多点分布、中央管理、多层报警和远程监测。
上传时间： 2013-11-08
上传用户：semi1981
介绍了多网口后板(RTM)的普通设计方案，提出了优化解决方案，并从软、硬件方面进行了比较，并且描述了新方案在卸载CPU负荷、防止“中断风暴”等方面的创新性设计。
上传时间： 2013-12-25
上传用户：gxm2052
(超值)Proteus单片机仿真200多例
上传时间： 2014-12-20
上传用户：行者Xin
K60_Flash_Noika5110_超声波测距_AB相正交解码测速
标签： Flash_Noika 5110 60 AB
上传时间： 2014-12-29
上传用户：windwolf2000
