Tel:010-62981113-2955:unsp@sunplus.com.cn电子竞赛传感器礼包(加强版)资料全集Tel:010-62981113-2955:unsp@sunplus.com.cnPNI电子指南针传感器介绍PNI磁通传感器SEN-S65(电子指南针传感器):特性及参数:高灵敏度:150微高斯宽量程:+/-11高斯低功耗(电池供电):3VDC,<500μA或5VDC线性度:0.6%工作频率:175kHzDRDY设置数据等待时间:20-50mS(低电平到高电平)体积小:6.3x2.3x2.2mm使用简单:两个传感器垂直放置并配合集成放大驱动ICPNI-1109使用(输数字信号),SPI接口,单片机直接采集处理成角度即可高精度:2度(做标定校准及补偿后可达0.5度)抗硬磁和软磁干扰能力比其他同类产周边电路只需要5颗电阻和一颗电容,成本可忽略不计,故总成本低无需标定受温湿度影响极小典型应用:电子指南针及需要二维定位的场合指南针是一个重要的导航工具,甚至在GPS中也会用到(盲区补偿)。本款用磁通传感器做的电子指南针体积小,成本低,精度达到±2度,功耗小(纽扣电池供电),非常适合替代旧的针式指南针或罗盘指南针。它使用直观,携带轻巧,操作方便。是旅游,登山,驾驶及其他户外运动不可缺少的必备新品。Tel:010-62981113-2955:unsp@sunplus.com.cn图1电子指南针原理图Tel:010-62981113-2955:unsp@sunplus.com.cn数字温度传感器DS18B20的原理与应用引言DS18B20是DALLAS公司生产的一线式数字温度传感器,具有3引脚TO-92小体积封装形式;温度测量范围为-55℃~+125℃,可编程为9位~12位A/D转换精度,测温分辨率可达0.0625℃,被测温度用符号扩展的16位数字量方式串行输出;其工作电源既可在远端引入,也可采用寄生电源方式产生;多个DS18B20可以并联到3根或2根线上,CPU只需一根端口线就能与诸多DS18B20通信,占用微处理器的端口较少,可节省大量的引线和逻辑电路。以上特点使DS18B20非常适用于远距离多点温度检测系统。DS18B20的内部结构:DS18B20内部结构如图1所示,主要由四部分组成:64位ROM、温度传感器、非挥发的温度报警触发器TH和TL、配置寄存器。DS18B20的管脚排列如图2所示,DQ为数字信号输入/输出端;GND为电源地;VDD为外接供电电源输入端,在寄生电源接线方式时接地,见图1。图1DS18B20的内部结构ROM中的64位序列号是出厂前被光刻好的,它可以看作是该DS18B20的地址序列码,每个DS18B20的64位序列号均不相同。64位ROM的排的循环冗余校验码(CRC=X8+X5+X4+1)。ROM的作用是使每一个DS18B20都各不相同,这样就可以实现一根总线上挂接多个DS18B20的目的。Tel:010-62981113-2955:unsp@sunplus.com.cn图2DS18B20的管脚排列图2初始化时序Tel:010-62981113-2955:unsp@sunplus.com.cn图3读写时序R1、R0决定温度转换的精度位数:R1R0=“00”,9位精度,昀大转换时间为93.75ms;R1R0=“01”,10位精度,昀大转换时间为187.5ms;R1R0=“10”,11位精度,昀大转换时间为375ms;R1R0=“11”,12位精度,昀大转换时间为750ms;未编程时默认为12位精度。高速暂存器是一个9字节的存储器。开始两个字节包含被测温度的数字量信息;第3、4、5字节分别是TH、TL、配置寄存器的临时拷贝,每一次上电复位时被刷新;第6、7、8字节未用,表现为全逻辑1;第9字节读出的是前面所有8个字节的CRC码,可用来保证通信正确。Tel:010-62981113-2955:unsp@sunplus.com.cn图4DS18B20连接方式特性及参数:独特的单总线结构,只需要一个接口就可以实现通信多点能力使分布式温度检测得以简化不需要外接元器件可以使用数据线供电不需要备份电源Tel:010-62981113-2955:unsp@sunplus.com.cnPT100金属铂温度传感器简述:铂电阻温度传感器精度高,稳定性好,应用温度范围广,是中低温区(-200℃~650℃)昀常用的一种温度检测器,不仅广泛应用于工业测温,而且被制成各种标准温度计。按IEC751国际标准,温度系数TCR=0.003851,Pt100(R0=100Ω)、Pt1000(R0=1000Ω)为统一设计型铂电阻。三线制PT100要求引出的三根导线截面积和长度均相同,测量铂电阻的电路一般是不平衡电桥,铂电阻作为电桥的一个桥臂电阻,将导线一根接到电桥的电源端,其余两根分别接到铂电阻所在的桥臂及与其相邻的桥臂上,当桥路平衡时,导线电阻的变化对测量结果没有任何影响,这样就消除了导线线路电阻带来的测量误差,所以工业上一般都采用三线制接法。参数特性:探头长度:50mm/100mm/150mm/200mm可选探头直径:φ5mm安装方式:标准M8*0.75螺纹固定引线长度:标准2m(需要延长时加专用屏蔽线)测温范围:-200℃~400℃温度系数:3.9×10-3/℃常用电路图:Tel:010-62981113-2955:unsp@sunplus.com.cnPT100铂电阻的温度和阻值对应关系:温度0123456789(℃)电阻值(Ω)-3088.0487.6487.2486.8486.4486.0485.6385.2384.8384.43-2092.0491.6491.2490.8490.4490.0489.6489.2488.8488.44-1098.0395.6395.2394.8394.4394.0393.6393.2492.8492.44-0100.0099.6099.2198.8198.4198.0197.6297.2296.8296.420100.00100.40100.79101.19101.59101.98102.38102.78103.17103.5710103.96104.36104.75105.15105.54105.94106.33106.73107.12107.5220107.91108.31108.70109.10109.49109.88110.28110.67111.07111.4630111.85112.25112.64113.03113.43113.82114.21114.60115.00115.3940115.78116.17116.57116.96117.35117.74118.13118.52118.91119.3150119.70120.09120.48120.87121.26121.65122.04122.43122.82123.2160123.60123.99124.38124.77125.16125.55125.94126.33126.72127.1070127.49127.88128.27128.66129.05129.44129.82130.21130.60130.9980131.37131.76132.15132.54132.92133.31133.70134.08134.47134.8890135.24135.63136.02136.40136.79137.17137.56137.94138.32138.72100139.10139.49139.87140.26140.64141.02141.41141.79142.18142.66110142.95143.33143.71144.10144.48144.86145.25145.63146.01146.40120146.78147.16147.55147.93148.31148.69149.07149.46149.84150.22130150.60150.98151.37151.75152.13152.51152.89153.27153.65154.03140154.41154.79155.17155.55155.93156.31156.69157.07157.45157.83150158.21158.59158.97159.35159.73160.11160.49160.86161.25161.62160162.00162.38152.76133.13163.51163.89164.27164.64165.0165.40170165.78166.16166.53136.91167.28167.65168.03168.41168.7169.10180169.54169.91170.29170.57171.04171.42171.79172.17172.5172.92190173.29173.67174.04174.41174.79175.16175.54175.91176.2176.66200177.03177.40177.78178.15178.52178.90179.27179.64180.0180.39210180.76181.13181.51131.88182.25182.62182.99183.36183.7184.11220184.48184.85185.22135.59185.96186.33185.70187.07187.4187.81230188.18188.55188.92139.29189.66190.03190.40190.77191.1191.51240191.88192.24192.61132.98193.35193.72194.09194.45194.8195.19250195.56195.92196.29136.66197.03197.39197.76198.13198.5198.86260199.23199.50199.90200.33200.69201.06201.42201.79202.1202.52270202.89203.25203.62203.98204.35204.71205.08205.44205.8206.11280206.53206.90207.26207.63207.99208.35208.72209.08209.4209.81290210.17210.53210.89211.26211.62211.98212.34212.71213.0213.43Tel:010-62981113-2955:unsp@sunplus.com.cn300213.79214.15214.51214.88215.24215.60215.96216.32216.6217.04310217.40217.76218.12218.49218.85219.21219.57219.93220.2220.64320221.00221.36221.72222.08222.44222.80223.16223.52223.8224.23330224.59224.95225.31225.67226.02226.38226.74227.10227.46227.81340228.17228.53228.88229.24229.60229.95230.31230.67231