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Nanocrystalline and Amorphous
| Amorphous Alloy Magnetic Sensor |
| Material characteristics and use: |
| Amorphous narrow strip is called label, which is mainly
used as signal sensor of intrusion system and boasts favourable
hiding property and high sensitivity. Higher harmonic
wave may be generated ina certain AC superposed magnetic
field to act as antitheft alarm signal source effectively
and safely. Magnetic label has been widely used for anti-theftsystems
of the libraries and sensing elements fo other systems,
for example anti-theft system of the market. |
| （0.04 0.005 ） (2 0.2) L(mm)strip is made of Co-based
non-crystalline(SFC302)and Febased non-crystalline(SFC103),and
shall be cut into a certain length as required by anti-theft
system, which may be used for book and commod-ity anti-theft
systems. |
| Physical performance of product |
Performance
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Alloy
Brand
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SFC302 |
SFC103 |
Saturation induction density Bs(T) |
0.55 |
1.32~1.46 |
Coercive force Hc(A/M) |
3.0~7 |
4.0~7.2 |
Curie temperature Tc(℃) |
253 |
287 |
Crystallization Tx(℃) |
532 |
549 |
Magnetostriction coefficient S(10-6) |
~0 |
4.6 |
Density (g/cm3) |
7.86 |
7.39 |
Warning sensitivity S(mv) |
85~90 |
80~85 |
| ※L=165mm,measured value of JX-3 type tester |
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