NFC/RFID 系列隔磁片
Nano-crystalline Magnetic Sheet for NFC/RFID
NFC/RFID 資訊是通過電磁感應耦合方式傳遞,工作時電磁場到達電池的金屬表面形成的渦流效應,極大地影響 NFC天線 的讀取特性。在天線與電池金屬面
之間貼上一片納米晶隔磁片則該問題迎刃而解。
NFC/RFID系列納米晶隔磁片以鐵基納米晶帶材為主要原材料製成,具有良好的磁性能,高磁導率,低損耗,高飽和磁感, 以及良好的頻率特性,可製成最薄至 30μ m 的磁性薄片,材料為柔性,不會變形或碎裂。
NFC/RFID information is transmitted through electromagnetic induction coupling method, The eddy current effect is formed in the metal surface by the electromagnetic field at the time of operation, it affects the reading performance of NFC antennas profoundly. It can solve the problem when a piece of Nano-crystalline Magnetic Sheetis placed between the antennaandthe battery.
Nano-crystalline Magnetic Sheet for NFC/RFID i s madeof iron-based Nano-crystalline ribbons, It has good magnetic properties, high permeability, low loss, high saturation magnetic induction, and goodfrequency characteristics, Min.30μ mmagnetic sheet can be made, the material i s flexible, will not be deformed or fractured.
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應用原理示意圖 Diagramof application principle
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未採用納米晶隔磁片 |
採用納米晶隔磁片 |
高磁導率材料可以提高磁通量,有效減少除渦流效應。
Thehigh permeability material can improve the magnetic flux, reduce the eddy current effect.
● 使用隔磁片可防止磁感線外泄,降低電磁幹擾。
Prevent leakage of magnetic field, reducing the level of EMI.
● 提高天線的接受靈敏度和 NFC 用讀寫器的接收靈敏度,增加標籤的讀寫距離。
Improve the receiving sensitivity of the antennaand the receiving sensitivity of the NFCreader, andincrease the reading andwriting distance of the tag.
性能特點 Characteristics
● 高磁導率(400-700)—避免誤操作,保證識別距離 High permeability(400-700)—Avoid mistake operating and insure identification distance
● 超薄,最低至 30μ m—尺寸厚度可定制 Ultrathin, as low as 30μ m—The size can be produced according to customers
● 高飽和磁感應強度—有效縮小磁片體積 High Bs—Reduce Magnetic sheet volume and thickness
● 柔性—有效避免隔磁片碎裂漏磁,方便操作 Flexible material—Avoid magnetic flux leakage, convenient operation
性能指標 Performance Index
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基本磁性參數Basic Magnetic property |
納米晶隔磁片Nano crystalline Magnetic sheet |
鎳鋅鐵氧體 NiZn ferrite |
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磁感應強度 Magnetic induction B800/T |
1.25 |
0.54 |
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磁導率 (@200 KHZ) Permeability |
實部μ ′ |
400-700 (可調) |
≤130 |
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虛部μ ″ |
20-40 (可調) |
1-5 |
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磁 導 (@13.56 MHZ) Permeability |
實部μ ′ |
300-500 (可調) |
≤130 |
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虛部μ ″ |
100-200 (可調) |
3-5 |
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矯 頑 力 Hc/(A/m) |
≤1.6 |
250-600 |
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居裡溫度 Curie temperature/℃ |
570 |
400 |
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厚 度 thickness/mm |
0.03- 0.3 |
≥0.1 |
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工作溫度 Operating temperature/℃ |
-40~85 |
-40~85& | |