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The development of modern technologies leads to a
need for more sensitive measuring methods. In the field of magnetic
field detection, the use of physical effects like e.g. the anisotropic
or "giant" magnetoresistance (AMR or GMR) or the Josephson effects is
very promising. This pratical shall give a theoretical and practical
introduction to the basics in dealing with magnetic sensors. These
sensors, which are based on the above given effects, are called
magnetoresistive sensors, because the magnetic field is measured by
measuring the electrical resistance of the sensor. Today,
magnetoresistive sensors can be produced by low costs and are suitable
for mass market production. They work very reliable even under extreme
conditions e.g. car engines. They are usable in all kind of applications
which require high sensitivity and low energy consumption. |
