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关键字：西门子定位器 http://www.siemens-positioner.com/ 西门子定位器SITRANS VP100型是一款智能电气阀门定位器，它与传统的定位器有着很大的不同，它是采用微处理器对给定值和位置反馈作比较。西门子定位器SITRANS VP100型的微处理器如果检测到偏差，它就用一个五步开关程序来控制压电阀，压电阀进而调节进入执行机构气室的气流量。微处理器根据偏差，也就是(给定值w与位置反馈信号x的大小和方向输出一个电控指令给压电阀。压电阀将控制指令转换为气动位移增量，当控制偏差很大时(高速区)，定位器输出一个连续信号；当控制偏差不大(低速区)，定位器输出连续脉冲；当控制器偏差在允许误差范围内(自适应或可调死区状态)，则没有控制指令输出。西门子定位器SITRANS VP100定位器采用适当的安装组件固定到直行程或角行程执行机构上，执行机构的直线或转角位移通过安装的组件检测并到耐磨连接导电塑料电位转换器。装在直行程执行机构上的组件检测的角度误差被自动地校正。当SITRANS VP100采用二线制连接时，它完全从4至20 mA给定信号中获取电源。德科蒙过程控制(武汉)有限公司座机:027-88062221传真:027-88068180邮箱: sales@whdkm.com原文出处：http://www.siemens-positioner.com/a/XWRD/245.htmlABSolute;top:0;border:0;width:undefinedpx;height:undefinedpx;" sandbox="allow-forms allow-pointer-lock allow-popUPS allow-popups-to-escape-sandbox allow-same-origin allow-scripts allow-top-navigation-by-user-activation" frameborder="0" src="https://googleads.g.doubleclick.net/pagead/ads?client=ca-pub-6745515041074118&ouTPUt=html&adk=1812271804&adf=3279755396&plat=1%3A32776%2C2%3A32776%2C9%3A32776%2C10%3A32%2C11%3A32%2C16%3A8388608%2C17%3A32%2C24%3A32%2C25%3A32%2C30%3A1081344%2C32%3A32%2C40%3A32&guci=2.2.0.0.2.2.0.0&format=0x0&url=https%3A%2F%2Fwww.bizrobot.com%2Fcompany_bloginfo.php%3Fact%3D1&ea=0&flash=32.0.0&pra=5&wgl=1&dt=1598599022585&bpp=14&bdt=295&idt=113&shv=r20200820&cbv=r20190131&ptt=9&saldr=aa&cookie=ID%3D5fb7eae809183df8%3AT%3D1588147156%3AS%3DALNI_MZhOWs11HQ-EEy1X6tCtUAbNrQ6cw&nras=1&correlator=7169346698781&frm=23&ife=1&pv=1&ga_vid=2108697509.1598599023&ga_sid=1598599023&ga_hid=1404201509&ga_fc=0&iag=3&icsg=42&nhd=1&dssz=4&mdo=0&mso=0&u_tz=480&u_his=6&u_java=0&u_h=1080&u_w=1920&u_ah=1030&u_aw=1920&u_cd=24&u_nplug=17&u_nmime=34&adx=-12245933&ady=-12245933&biw=1203&bih=586&isw=730&ish=360&ifk=2699508910&scr_x=0&scr_y=0&eid=21066807&oid=3&pvsid=552211119996763&pem=16&ref=https%3A%2F%2Fwww.bizrobot.com%2Fcompany_bloginfo.php%3Fadd_suc%3D1&rx=0&eae=2&fc=1920&brdim=0%2C0%2C0%2C0%2C1920%2C0%2C1920%2C1030%2C730%2C360&vis=1&rsz=%7C%7Cs%7C&abl=NS&fu=8204&bc=31&ifi=0&uci=0.h1x3l336tth1&fsb=1&dtd=132" marginwidth="0" marginheight="0" vspace="0" hspace="0" allowtransparency="true" scrolling="no" allowfullscreen="true" data-google-container-id="0.h1x3l336tth1" data-load-complete="true"> |