Sensor arrangement for the contactless sensing of angles of rotation on a rotating part
A sensor assembly, a technology for detecting rotation, which is used in converting sensor output, using electromagnetic/magnetic devices to transmit the direction of sensing components, instruments, etc., can solve the problem that the evaluation of the coupling coefficient requires expensive electronic equipment, etc. flexible effects
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[0016] as by figure 1 and figure 2 As can be seen, the illustrated embodiment of the sensor assembly 1 according to the invention for the contactless detection of the angle of rotation of a rotary component comprises a target 20 coupled to the rotary component, which has an annular disk-shaped base body 22 , the base body has at least one metal surface 24 ; and a coil assembly 40 with at least one planar detection coil 42 , 44 , 46 arranged on a circular circuit board 30 . Obviously, the circuit board 30 does not have to be circular, and the circuit board 30 can also have other suitable shapes. The target object 20 combines with the coil assembly 40 to generate at least one kind of information for determining the current rotation angle of the rotating component. According to the invention, at least one measuring circuit 3 converts the inductance L of the corresponding planar search coil 42 , 44 , 46 into a measuring signal U M The inductance changes due to the eddy current...
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