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Characteristics
of Magnetoresistive Elements |
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 Magnetic Flux Density / Resistance Change Characteristic |
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As expressed by
the formula ![Rb = R0 (B/(0 [1 + m(micro B)2]](img/uni/form02.gif) , the
resistance increases non-linearly in the range of low magnetic flux
densities, while it increases linearly in the range of high magnetic
flux densities. |
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| <Magnetic
Flux Density / Resistance Change Characteristic> |
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- The resistance increases in proportion to the
magnetic flux density, independent of the polarity.
- The resistance increases non-linearly in the range of
80 mT or less magnetic flux densities. When the magnetic flux density
exceeds 80 mT, the resistance increases linearly.
- If the magnetic flux density reaches 300 mT, it
indicates that the resistance has increased approx. four times from the
initial resistance.
- The resistance will not be saturated even at a high
magnetic flux density.
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| Resistance / Temperature Characteristic |
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The resistance /
temperature characteristic depends on the carrier density. |
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| <Resistance
/ Temperature Characteristic> |
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- 100% corresponds to the resistance obtained at 25°C.
- The temperature coefficient is high (approx. -2%/°C).
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