DEVICE FOR MEASURING A ROTATIONAL ANGLE BY MODIFYING AND MEASURING THE POLARIZATION OF RADIO WAVES AND USE OF SAID DEVICE

摘要

The present invention relates to devices for changing and measuring the polarisation of radio waves, Embodiments of the devices for different applications as well as uses of the devices as sensors for measuring angles and shifts.

主权项

1. A device for measuring an angle of rotation or a rotary speed comprising:
at least one transmitter of radio waves, at least two receivers for radio waves, and a transducer which is anisotropic for the radio waves coming from the transmitter, wherein the anisotropic transducer can be rotated in relation to the receivers about a rotary axis, wherein the receivers are polarisation-sensitive, wherein the radio waves coming from the transmitter are changed by the anisotropic transducer and the changed radio waves are received by the polarisation-sensitive receivers, and wherein means are provided, which are configured to give an indication, on the basis of the signals of the polarisation-sensitive receivers, as to the polarisation of the received radio waves.