Invention Grant
US08891083B2 Device for measuring the rotating angle of two objects rotating on a rotating axis relative to each other
有权
用于测量在旋转轴线上相对于彼此旋转的两个物体的旋转角度的装置
- Patent Title: Device for measuring the rotating angle of two objects rotating on a rotating axis relative to each other
- Patent Title (中): 用于测量在旋转轴线上相对于彼此旋转的两个物体的旋转角度的装置
-
Application No.: US13668625Application Date: 2012-11-05
-
Publication No.: US08891083B2Publication Date: 2014-11-18
- Inventor: David Hopp , Michael Speidel
- Applicant: Sick Stegmann GmbH
- Applicant Address: DE Donaueschingen
- Assignee: Sick Stegmann GmbH
- Current Assignee: Sick Stegmann GmbH
- Current Assignee Address: DE Donaueschingen
- Agency: Nath, Goldberg & Meyer
- Agent Jerald L. Meyer
- Priority: EP11190160 20111122
- Main IPC: G01J4/00
- IPC: G01J4/00 ; G01D5/34

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.
Public/Granted literature
Information query