Invention Grant
US09551562B2 Method and device for determining the absolute position of a movable body
有权
用于确定可移动体的绝对位置的方法和装置
- Patent Title: Method and device for determining the absolute position of a movable body
- Patent Title (中): 用于确定可移动体的绝对位置的方法和装置
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Application No.: US13823134Application Date: 2011-09-14
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Publication No.: US09551562B2Publication Date: 2017-01-24
- Inventor: Josef Janisch
- Applicant: Josef Janisch
- Applicant Address: DE Dresden
- Assignee: IDT EUROPE GmbH
- Current Assignee: IDT EUROPE GmbH
- Current Assignee Address: DE Dresden
- Agency: Heslin Rothenberg Farley & Mesiti P.C.
- Priority: ATA1523/2010 20100914
- International Application: PCT/EP2011/065964 WO 20110914
- International Announcement: WO2012/035077 WO 20120322
- Main IPC: G01B7/14
- IPC: G01B7/14 ; G01B7/30 ; G01D5/14 ; G01D5/244

Abstract:
In a method for determining absolute position of a mobile element in reference to two magneto-sensitive sensors, having a source of a magnetic field fastened to the element, a first sensor signal and a second sensor signal are measured with one magneto-sensitive sensor each. An amplitude ratio of the respective sensor signals and the off-set values about the respective zero point of the sensor signals are determined from the minimum and maximum values of the sensor signals, and from these values, scaled sensor signals are calculated that form a sum signal and a difference signal, which are scaled, with the determination of the minimum and the maximum values occurring by a relative movement of the element over a full range of motion, and an absolute position is calculated via the scaled sum signal and the scaled difference signal.
Public/Granted literature
- US20130268234A1 METHOD AND DEVICE FOR DETERMINING THE ABSOLUTE POSITION OF A MOVABLE BODY Public/Granted day:2013-10-10
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