公开(公告)号：US10571309B2

公开(公告)日：2020-02-25

申请号：US15553224

申请日：2016-02-22

Applicant: Guenter Grau

Inventor： Guenter Grau

IPC: G01D5/34 ,  G01J4/04

Abstract: Various embodiments relate to devices for measuring the state of devices and multi-stage rotary encoders as well as to associated sensors. In order to simplify the design of devices which can be read out electronically and multi-turn rotary encoders, according to some embodiments a device having at least one rotatable wheel, at least one light source and at least one polarization sensor is proposed, the wheel being at least partially transparent and polarization-maintaining, parts of the wheel being configured as pole filters, it being possible for light which exits the light source to be polarized by the pole filter and to be received by the polarization sensor.

公开(公告)号：US20180188078A1

公开(公告)日：2018-07-05

申请号：US15553224

申请日：2016-02-22

Applicant: Guenter Grau

Inventor： Guenter Grau

IPC: G01D5/34 ,  G01J4/04

CPC classification number: G01D5/345 ,  G01D5/344 ,  G01J4/04

Abstract: Various embodiments relate to devices for measuring the state of devices and multi-stage rotary encoders as well as to associated sensors. In order to simplify the design of devices which can be read out electronically and multi-turn rotary encoders, according to some embodiments a device having at least one rotatable wheel, at least one light source and at least one polarization sensor is proposed, the wheel being at least partially transparent and polarization-maintaining, parts of the wheel being configured as pole filters, it being possible for light which exits the light source to be polarized by the pole filter and to be received by the polarization sensor.