Device for measuring the rotating angle of two objects rotating on a rotating axis relative to each other
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United States of America Patent
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Nov 18, 2014
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N/A
app pub date -
Nov 5, 2012
filing date -
Nov 22, 2011
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Abstract
The disclosure conveys a device for measuring the rotating angle of two objects which rotate relative to each other around a rotating axis, with one transmitter, which is assigned to one of the objects and which emits light that is polarized, and with a polarization-sensitive polarizer, such that the transmitter and the polarizer rotate relative to each other, and such that the polarizer has a polarizing area and a non-polarizing area, where the non-polarizing area is positioned eccentric to the rotating axis, and such that the device has a first receptor and a second receptor which measure a portion of the luminosity passing through the polarizer producing signals that are dependent on the rotating angle, and where the first receptor has a first reception area, and the second receptor has a second reception area which is distinct from the first reception area.
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