摩新國際科技

數位板用電磁遮罩片

數位板用電磁遮罩片
Electromagnetic Shielding Sheet for Digital Plate

數位板是靠磁場工作的,板面上有一層電磁場,電磁筆通過不同的方式也會產生電磁場,工作時,通過計算兩種磁場之間 互相作用的結果來定位並判斷電磁筆的運行軌跡,通過計算電磁場的大小,回饋壓感的大小,從而使繪畫書寫時還原使用者筆 跡。
數位板用電磁遮罩片以鐵基非晶帶材為主要原材料製成,具有高磁導率、低損耗的特性,工作時增強磁通量,提高繪畫靈敏 度。可製成最薄至 0.1mm的磁性薄片,材料為柔性,不會變形或碎裂。

Digital board works by magnetic field, the surface has a layer of electromagnetic field, electromagnetic pen
through different ways to produce electromagnetic fields, computer calculates the results of interaction between the two kinds of magnetic field to locate and determine the trajectory of the electromagnetic pen when it works, through the calculation of electromagnetic field size to feedback the Pressure data, So as to restore the handwriting whenuser writing and drawing.
Electromagnetic Shielding Materials for Digital Plate i s madeof iron-based amorphous ribbons,the amorphous electromagnetic sheet with high permeability andlow loss, i t can enhance the magnetic flux andimprove the sensitivity of the painting whendigital boardat work. Min.100μ m magnetic sheet can be made, the material i s flexible, will not be deformed or fractured.


應用原理示意圖 Diagram of application principle
未採用電磁遮罩片
採用電磁遮罩片
●  隔磁片可以提高磁通量,有效減少除渦流效應,使電磁筆檢測到更強的電磁信號。
       Magnetic Sheet can improve the magnetic flux, reduce the eddy current effect, The stronger electromagnetic signal can be detected by the magnetic pen..
●
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.
●
提高書寫靈敏度,更加流暢的“原筆跡”書寫。
Improve writing sensitivity, more fluid "original handwriting" writing.
性能特點 Characteristics
●
多層遮罩結構,外覆高導磁合金材料,遮罩外部磁場
Multilayer shielding structure, with high permeability alloy outside, shields the external magneticfield.
●
內置金屬箔,遮罩高頻磁場幹擾,高飽和磁感應強度
Built-in metal foi l , shields the high-frequency magnetic field interference, high saturation induction.
●
材料輕薄,柔韌性好,耐磨性好,不易受損致使導磁率降低。
Light weight, good flexibility, good wear resistance, not easy to reduce the permeability due to damage.
●
低損耗—增強磁通量,更好適用於無源無線數位板。
Lowcore loss—Improve the magnetic flux, better for passive wireless digital boards
●
柔性材料—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

基本磁性參數Basic Magnetic property

有源數位板用

電磁遮罩片 ESSfor active digital board

無源數位板用

電磁遮罩片 ESSfor passive digital board

鐵鎳合金

Permalloy

磁感應強度 Magnetic induction B800/T

1.56

1.25

0.6

磁導率(@200KHZ)

Permeability

實部μ ′

800-1200

800-1500 (可調)

400-700

虛部μ ″

300-400

50-100 (可調)

500-600

最大磁導率 Maxpermeability μ

20000

200000

400000

矯頑力

Hc/(A/m)

 

 

<4

≤1.6

0.8

電阻率

Resistivity  δ

(μ Ω ·cm)

≥130

≥130

60-85

居裡溫度 Curie temperature/℃

400

570

410

厚 度 thickness/mm

≥0.1

≥0.1

≥0.1

工作溫度 Operating temperature/℃

-40~85

-40~85

-40~85


電磁遮罩片的製備 ESS preparation 產品結構 Structure

數位板用電磁遮罩片採用非晶帶材和雙面膠複合 而成,經過單元化加工降低損耗,具有輕、薄和柔軟    的特點,厚度和尺寸可根據客戶需求定制。

應用領域 Application

● 無源數位板用低損耗電磁遮罩片
    Amorphous low-loss electromagnetic sheet for passive digital board.
● 家教機、手寫板、繪畫板、簽字系統、數碼電子產品等用電磁遮罩片
    Amorphouselectromagnetic sheet for family education machine, handwriting board, drawing board, signature system, digital electronic products, etc.
● 育教學系統用電磁遮罩片
    Amorphouselectromagnetic sheet for educational system.

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