低频磁场的屏蔽使用铁磁性材料将敏感器件包起来。屏蔽的作用是为磁场提供一条低磁阻的通路,使敏感器件周围的磁力线集中在屏蔽材料中,从而起到屏蔽的作用。为了提供高的屏蔽效果,屏蔽材料应具有尽量高的磁导率。材料的磁导率不是一个不变的量,它随着外加磁场、频率等变化。故这类低频率的磁场屏蔽需要提供低磁阻表面来完成。
二、采用CO NETIC AA(μ=450000)和NETIC S3-6(μ=4000)的高导磁率的特殊屏蔽材料可以达到这一目的。在低磁通密度时,使用CO-NETIC AA,以便利用其高初始磁导率和相应的高衰减特性;在高磁通密度时,使用NETIC S3-6,以便利用其高磁饱和特性;在某些应用中,两种材料结合使用,但NETIC材料经常置于接近磁干扰源。
箔型与板型
箔型 的厚度从0.002到0.10英尺(0.051到0.254毫米),经过简单加工就可提供有效屏蔽,同时避免昂贵的机械加工。因此,箔型对于很多产品、样机和实验室评价计划来说,为首选材料.典型的应用包括:屏蔽对场敏感的元件、印制电路板、仪器、信号连线和功率电缆。
板型 材料的厚度从0.014到0.062英尺(0.356到1.58毫米),它可提供辅助屏蔽作用。典型应用包括需要产品加工的场合。我们独有的完全退火的板型材,不用进一步退火就可以作为磁屏蔽使用。
磁屏蔽材料 CO-NETIC?AA 箔型,完全退火,0.0040inch(0.102mm)厚X4inch(101.6mm)宽X长度5feet(1524mm)
磁屏蔽材料 CO-NETIC?AA 箔型,完全退火,0.0040inch(0.102mm)厚X4inch(101.6mm)宽X长度10feet(3048mm)
磁屏蔽材料 CO-NETIC?AA 箔型,完全退火,0.0040inch(0.102mm)厚X4inch(101.6mm)宽X长度25feet(7620mm)
磁屏蔽材料 CO-NETIC?AA 箔型,完全退火,0.0040inch(0.102mm)厚X4inch(101.6mm)宽X长度50feet(15240mm)
磁屏蔽材料 CO-NETIC?AA 箔型,完全退火,0.0040inch(0.102mm)厚X4inch(101.6mm)宽X长度100feet(30480mm)
磁屏蔽材料 CO-NETIC?AA 箔型,完全退火,0.0040inch(0.102mm)厚X4inch(101.6mm)宽X长度250feet(76200mm)
磁屏蔽材料 CO-NETIC?AA 箔型,完全退火,0.0040inch(0.102mm)厚X4inch(101.6mm)宽X长度500feet(152400mm)
磁屏蔽材料 CO-NETIC?AA 箔型,完全退火,0.0040inch(0.102mm)厚X4inch(101.6mm)宽X长度1000feet(304800mm)
磁屏蔽材料 NETIC S3-6 箔型,完全退火,0.0040inch(0.102mm)厚X4inch(101.6mm)宽X长度5feet(1524mm)
磁屏蔽材料 NETIC S3-6 箔型,完全退火,0.0040inch(0.102mm)厚X4inch(101.6mm)宽X长度10feet(3048mm)
磁屏蔽材料 NETIC S3-6 箔型,完全退火,0.0040inch(0.102mm)厚X4inch(101.6mm)宽X长度25feet(7620mm)
磁屏蔽材料 NETIC S3-6 箔型,完全退火,0.0040inch(0.102mm)厚X4inch(101.6mm)宽X长度50feet(15240mm)
磁屏蔽材料 NETIC S3-6 箔型,完全退火,0.0040inch(0.102mm)厚X4inch(101.6mm)宽X长度100feet(30480mm)
磁屏蔽材料 NETIC S3-6 箔型,完全退火,0.0040inch(0.102mm)厚X4inch(101.6mm)宽X长度250feet(76200mm)
磁屏蔽材料 NETIC S3-6 箔型,完全退火,0.0040inch(0.102mm)厚X4inch(101.6mm)宽X长度500feet(152400mm)
磁屏蔽材料 NETIC S3-6 箔型,完全退火,0.0040inch(0.102mm)厚X4inch(101.6mm)宽X长度1000feet(304800mm)