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Electrical measuring device for measuring rotational angle of rotor in electromotor, has coil arranged in electrically conductive material of disk such that rotational angle of disk is determined from radius of coil in angular section
Electrical measuring device for measuring rotational angle of rotor in electromotor, has coil arranged in electrically conductive material of disk such that rotational angle of disk is determined from radius of coil in angular section
The device (10) has a disk (15) coupled to a rotary element, and a transmitter and a receiver arranged on opposing sides of the disk. The disk includes an electrically conductive material, and the receiver is arranged in an angular section of the disk. A coil i.e. Archimedean coil, is arranged in the electrically conductive material such that a rotational angle of the disk is determined from radius of the coil in the angular section of the coil. The disk includes a copper layer and the coil is removable from the copper layer.
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