廈門泰尼電氣有限公司
主營產(chǎn)品: AB模塊PLC |
廈門泰尼電氣有限公司
主營產(chǎn)品: AB模塊PLC |
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更新時間:2018-03-16 17:42:24瀏覽次數(shù):220
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IC693CBL302---IC693CBL302
IC693CBL302---IC693CBL302
要想了解EMC電磁兼容,先讓我們引入兩個概念:電磁騷擾和電磁干擾。電磁騷擾(EMD, ElectroMagnetic Distur-bance):任何可能引起裝置、設(shè)備或系統(tǒng)性能降級或?qū)τ猩驘o生命物質(zhì)產(chǎn)生作用的電磁現(xiàn)象。電磁騷擾可能是電磁噪聲、無用信號或傳播媒介自身的變化;電磁干擾(EMI, Elec-troMagnetic Interference):是電磁騷擾引起的設(shè)備、傳輸通道或系統(tǒng)性能的下降。電磁干擾有三大因素:(1)電磁干擾源;(2)耦合路徑(傳輸通道);(3)敏感設(shè)備。而電磁兼容(EMC, ElectroMagnetic Compatibility)一般指電氣及電子設(shè)備在共同的電磁環(huán)境中能執(zhí)行各自功能的共存狀態(tài),正常工作而互不干擾,達到“兼容"。在IEC的定義中,EMC是設(shè)備的一種能力,它在其電磁環(huán)境中能完成自身的功能而不致于在其環(huán)境中產(chǎn)生不允許的干擾。
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