Invention Grant
- Patent Title: Position-measuring device and method for transmitting information concerning movement
- Patent Title (中): 位置测量装置和传送关于运动的信息的方法
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Application No.: US12184424Application Date: 2008-08-01
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Publication No.: US07925462B2Publication Date: 2011-04-12
- Inventor: Marc Oliver Tiemann
- Applicant: Marc Oliver Tiemann
- Applicant Address: DE Traunreut
- Assignee: Dr. Johannes Heidenhain GmbH
- Current Assignee: Dr. Johannes Heidenhain GmbH
- Current Assignee Address: DE Traunreut
- Agency: Kenyon & Kenyon LLP
- Priority: DE102007036542 20070802
- Main IPC: G01P21/00
- IPC: G01P21/00

Abstract:
In a position-measuring device and a method for transmitting movement information from a position-measuring device to sequential electronics, the position-measuring device includes a position-measuring unit, a movement-measuring unit, an arithmetic logic unit and an interface unit. Position values of two objects in a measuring direction are measurable by the position-measuring unit. The movement-measuring unit is used to ascertain a movement value of the two objects. The position values and the movement value are supplied to the arithmetic logic unit which ascertains movement information in the form of a correction value that is suitable for calculating the movement value in sequential electronics from an instantaneous position value, at least one previous position value, a controller cycle time that indicates the time interval between the measurements of position values, and the correction value. The data-word length of the correction value is substantially less than the data-word length of the movement value.
Public/Granted literature
- US20090037127A1 POSITION-MEASURING DEVICE AND METHOD FOR TRANSMITTING INFORMATION CONCERNING MOVEMENT Public/Granted day:2009-02-05
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