网址:http://www.china-hydac.com/ 贺德克压力传感器金属电阻应变片吸附在基体材料,上应变电阻随机械形变而产生阻值变化的现象,俗称为电阻应变效应。我们以金属丝应变电阻为例,当金属丝受外力作用时,其长度和截面积都会发生变化,假如金属丝受外力作用而伸长时,其长度增加,而截面积减少,电阻值便会增大。当金属丝受外力作用而压缩时,长度减小而截面增加,电阻值则会减小。只要测出加在电阻的变化(通常是测量电阻两端的电压),即可获得应变金属丝的应变情况。电阻应变片由基体材料、金属应变丝或应变箔、绝缘保护片和引出线等部分组成。根据不同的用途,电阻应变片的阻值可以由设计者设计,但电阻的取值范围应注意:阻值太小,所需的驱动电流太大,同时应变片的发热致使本身的温度过高,不同的环境中使用,使应变片的阻值变化太大,输出零点漂移明显。 贺德克压力传感器是工业实践中最为常用的一种传感器,广泛应用于各种自控环境,涉及水利水电、铁路交通、智能建筑、生产自控、航空航天、军工、石化、油井、电力、船舶、机床、管道等众多行业。电话:027-87263542手机:18372021864qq:1763639853PARent;">ABSolute;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%2C8%3A32776%2C9%3A32776%2C16%3A8388608%2C17%3A32%2C24%3A32%2C25%3A32%2C30%3A1048576%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=29.0.0&pra=5&wgl=1&adsid=NT&dt=1589337223141&bpp=7&bdt=377&idt=289&shv=r20200506&cbv=r20190131&ptt=9&saldr=aa&cookie=ID%3Da07b3c4ba002eaff%3AT%3D1586760676%3AS%3DALNI_MZl9pNx2HQ9GFalqRptRGcqVZOiBA&crv=1&nras=1&correlator=6797248768603&frm=23&ife=1&pv=2&ga_vid=2127934737.1589337223&ga_sid=1589337223&ga_hid=678751841&ga_fc=0&iag=3&icsg=42&nhd=1&dssz=4&mdo=0&mso=0&u_tz=480&u_his=5&u_java=0&u_h=1080&u_w=1920&u_ah=1030&u_aw=1920&u_cd=24&u_nplug=15&u_nmime=32&adx=-12245933&ady=-12245933&biw=1013&bih=705&isw=730&ish=360&ifk=2699508910&scr_x=0&scr_y=0&eid=21065532%2C21066085&oid=3&pvsid=2031905425571900&pem=841&ref=https%3A%2F%2Fwww.bizrobot.com%2Fcompany_bloginfo.php&rx=0&eae=2&fc=1920&brdim=654%2C0%2C654%2C0%2C1920%2C0%2C1273%2C973%2C730%2C360&vis=1&rsz=%7C%7Cs%7C&abl=NS&fu=8220&bc=31&ifi=0&uci=0.5vdf61ccb41q&fsb=1&dtd=324" marginwidth="0" marginheight="0" vspace="0" hspace="0" allowtransparency="true" scrolling="no" allowfullscreen="true" data-google-container-id="0.5vdf61ccb41q" data-load-complete="true"> |