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本特利330171-00-08-50-02-CN 电涡流传感器是以高频电涡流效应为原理的非接触式位移、振动传感器,其基本原理是探头、延伸电缆、前置器以及被测体构成基本工作系统。前置器中高频振荡电流通过延伸电缆流入探头线圈，在探头头部的线圈中产生交变的磁场。如果在这一交变磁场的有效范围内没有金属材料靠近, 则这-磁场能量会全部损失;当有被测金属体靠近这- -磁场,则在此金属表面产生感应电流,电磁学.上称之为电涡流。与此同时该电涡流场也产生-个方向与头部线圈方向相反的交变磁场,由于其反作用,使头部线圈高频电流的幅度和相位得到改变(线圈的有效阻抗)，这-变化与金属体磁导率、电导率、线圈的几何形状、几何尺寸、电流频率以及头部线圈到金属导体表面的距离等参数有关 本特利330171-00-08-50-02-CN 330103-00-05-10-02-00 330130-080-00-00 330703-000-050-10-02-00 330730-040-00-00330103-00-08-10-02-00本特利3500/42-01-00 本特利128229-01 330930-040-00-00 330780-91-00 330130-080-01-00 3500/42-01-00 176449-02 128229-01 330104-00-10-10-02-00 330730-080-01-00/8m 330704-000-136-10-02-00 330180-91-00 PARent;">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%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=29.0.0&pra=5&wgl=1&dt=1596594235652&bpp=36&bdt=253&idt=166&shv=r20200803&cbv=r20190131&ptt=9&saldr=aa&cookie=ID%3Ddb34b3484dfc4c41%3AT%3D1588921024%3AS%3DALNI_MaY7lX_nxkLXJGm06pq9JGcv5RA4w&nras=1&correlator=2339628301221&frm=23&ife=1&pv=2&ga_vid=808590910.1596594236&ga_sid=1596594236&ga_hid=242364281&ga_fc=0&iag=3&icsg=42&nhd=1&dssz=4&mdo=0&mso=0&u_tz=480&u_his=13&u_java=0&u_h=900&u_w=1440&u_ah=860&u_aw=1440&u_cd=24&u_nplug=27&u_nmime=54&adx=-12245933&ady=-12245933&biw=1423&bih=700&isw=730&ish=360&ifk=2699508910&scr_x=0&scr_y=0&eid=21066357%2C21066898&oid=3&pvsid=817475761970903&pem=257&ref=https%3A%2F%2Fwww.bizrobot.com%2Fcompany_bloginfo.php%3Fadd_suc%3D1&rx=0&eae=2&fc=1664&brdim=0%2C0%2C0%2C0%2C1440%2C0%2C1440%2C860%2C730%2C360&vis=1&rsz=%7C%7Cs%7C&abl=NS&fu=8204&bc=31&ifi=0&uci=0.lbn6mfsdo4i6&fsb=1&dtd=270" marginwidth="0" marginheight="0" vspace="0" hspace="0" allowtransparency="true" scrolling="no" allowfullscreen="true" data-google-container-id="0.lbn6mfsdo4i6" data-load-complete="true"> |