倍加福传感器所得的电信号通常不能直接使用,后端需要接一个部分,称为测量电路。测量电路的作用是将微弱的传感器输出转变为标定的输出。至于信号传输过程中的调制和解调。大多数传感器输出的信号是极其微弱的小信号,通常是电压信号,也有电流或者电荷信号。所以使用这些信号需要经过放大。不同的传感器信号,所用的放大电路也不同。 由于倍加福传感器本身信号很小,所以采用的放大电路的噪声也要很小。需要适当做好屏蔽和隔离,缩短线路长度。电子元器件的特性导致电路性能会收到温度影响产生漂移。这就需要选择温漂小的器件,同时减小电流,做好散热。输入输出阻抗需要匹配。输入阻抗越高,噪声越大。输入阻抗太小,接入电路以后会影响前级传感器工作。大多系统采用的是线性定标,这时候就需要考虑输出的线性度好,尽量减少回程误差。http://www.amypf.com/电话:027-87263542手机:18372021864LED">ABSolute;top:0;border:0;width:undefinedpx;height:undefinedpx;" SANdbox="allow-forms 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=3%3A32%2C4%3A32%2C8%3A134217728%2C9%3A134250504%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=1632988639991&bpp=5&bdt=236&idt=74&shv=r20210922&mjsv=m202109220101&ptt=9&saldr=aa&cookie=ID%3Da07b3c4ba002eaff-22ed306a0ec40076%3AT%3D1602729171%3ART%3D1602729171%3AS%3DALNI_MbBh5yg2uKd0UtH0u1Ylcdyq42wTg&nras=1&correlator=740664663044&frm=23&ife=1&pv=1&ga_vid=1088760991.1632988640&ga_sid=1632988640&ga_hid=188227414&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_java=0&u_nplug=14&u_nmime=31&adx=-12245933&ady=-12245933&biw=1048&bih=834&isw=730&ish=360&ifk=2699508910&scr_x=0&scr_y=0&eid=44751037%2C44751635&oid=3&pvsid=1437984452324835&pem=217&ref=https%3A%2F%2Fwww.bizrobot.com%2Fcompany_bloginfo.php%3Fadd_suc%3D1&eae=2&fc=1920&brdim=756%2C13%2C756%2C13%2C1920%2C0%2C1096%2C971%2C730%2C360&vis=1&rsz=%7C%7Cs%7C&abl=NS&fu=32772&bc=31&ifi=1&uci=1.9srmpwecltdk&fsb=1&dtd=106" marginwidth="0" marginheight="0" vspace="0" hspace="0" allowtransparency="true" scrolling="no" allowfullscreen="true" data-google-container-id="1.9srmpwecltdk" data-load-complete="true"> |