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倍加福传感器应变片式传感器应变计的转换原理基于应变效应。所谓应变效应是指属丝的电阻值随其变形而发生改变的一种物理现象。由物理学可知，金属丝酌电阻值R与其长度和电阻率成正比，而当金属丝受力变形改变其长度与横截面积而改变电阻值，引起电压值变化。电阻应变计简称应变计，它主要由电阻敏感栅、基底和面胶(或覆盖层)、粘结剂、引出线五部分组成。 基底是将传感器弹性体表面的应变传递到电阻敏感栅上的中间介质，并起到敏感棚和弹性体之间的绝缘作用，面胶起着保护敏感栅的作用，粘结剂是将敏感栅和基底粘接在一起，引出线是作为联接测量导线之用。电阻敏感栅可以将应变量转换成电阻变化。 倍加福传感器多数应变式传感器都是将应变计粘贴于弹性元件表面弹性元件表面的变形通过基底和粘结列传递给应变计的敏感。由于基底和粘贴剂的弹性模量与敏感栅材料的弹性模量之间有差别等原因.弹性元件表面的应变不可能全部均匀地传递到敏感栅。http://www.amypf.com/027-87263542手机：18372021864LED">ABSolute;top:0;border:0;width:undefinedpx !IMPORTANT;height:undefinedpx !IMPORTANT" SANdbox="allow-forms allow-popUPS allow-popups-to-escape-sandbox allow-same-origin allow-scripts allow-top-navigation-by-user-activation" frameborder="0" marginwidth="0" marginheight="0" vspace="0" hspace="0" allowtransparency="true" scrolling="no" src="https://googleads.g.doubleclick.net/pagead/ads?client=ca-pub-6745515041074118&ouTPUt=html&adk=1812271804&adf=3279755396&plat=3%3A32%2C4%3A32%2C8%3A134217728%2C9%3A134250496%2C16%3A8388608%2C17%3A32%2C24%3A32%2C25%3A32%2C30%3A1048576%2C32%3A32&format=0x0&url=https%3A%2F%2Fwww.bizrobot.com%2Fcompany_bloginfo.php%3Fact%3D1&ea=0&flash=29.0.0&pra=5&wgl=1&dt=1646981842578&bpp=8&bdt=299&idt=196&shv=r20220308&mjsv=m202203030101&ptt=9&saldr=aa&cookie=ID%3D2c186cce80d69fb1-221c8408a0ce006c%3AT%3D1636508022%3ART%3D1636508022%3AS%3DALNI_Mbu0HZjDtEO7dny0NgdC9Kvxw3uwg&nras=1&correlator=7508135551368&frm=23&ife=1&pv=1&ga_vid=406169269.1646981843&ga_sid=1646981843&ga_hid=553272199&ga_fc=0&nhd=1&u_tz=480&u_his=10&u_h=1080&u_w=1920&u_ah=1030&u_aw=1920&u_cd=24&u_sd=1&DMC=4&adx=-12245933&ady=-12245933&biw=859&bih=928&isw=730&ish=360&ifk=2699508910&scr_x=0&scr_y=0&eid=44759876%2C44759927%2C44759837%2C42531398%2C44750773%2C31065371%2C31065530%2C44756895&oid=2&pvsid=2141075024932858&pem=217&tmod=766389005&uas=0&nvt=1&ref=https%3A%2F%2Fwww.bizrobot.com%2Fcompany_bloginfo.php%3Fadd_suc%3D1&eae=2&fc=1920&brdim=1013%2C0%2C1013%2C0%2C1920%2C0%2C907%2C1082%2C730%2C360&vis=1&rsz=%7C%7Cs%7C&abl=NS&fu=33796&bc=31&ifi=1&uci=1.n0luremv0a7v&fsb=1&dtd=225" data-google-container-id="1.n0luremv0a7v" data-load-complete="true"> |