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MAGNETIC REVOLUTION COUNTER AND METHOD FOR DETERMINING NUMBERS OF REVOLUTIONS THAT CAN BE DETERMINED BY MEANS OF SAID REVOLUTION COUNTER
MAGNETIC REVOLUTION COUNTER AND METHOD FOR DETERMINING NUMBERS OF REVOLUTIONS THAT CAN BE DETERMINED BY MEANS OF SAID REVOLUTION COUNTER
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机译:用于确定可以通过所述革命计数器确定的旋转数量的磁速计数器和方法
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摘要
A magnetic revolution counter, and method for determining a predefinable number n of revolutions to be determined of a rotating magnetic field, generated by a magnetic system includes a revolution sensor, which includes magnetic domain wall conductors composed of open spirals or closed, multiply-wound loops, which are formed by a GMR layer stack or a soft magnetic layer comprising locally present TMR layer stacks and in which magnetic 180° domain walls can be introduced and located by measuring the electrical resistance of predefinable spiral or loop sections, wherein a single domain wall is, or at least two magnetic domain walls are, introduced into the domain wall conductors such that the at least two domain walls are brought into a defined separation of greater than 360° with respect to one another, based on the change in location thereof from a first to a second position, with a rotation of the outer magnetic field by the angle of greater than 360°, and are permanently thus spaced apart from one another, and electrical contacts, which are disposed in a defined manner on the domain wall conductors, are provided.
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