Patent · US Expired

Method and device for the detection of the movement of an element

US7013233B2 · kind B2 · utility

7Cited by

4References

8Claims

0Family size

Assignee

Robert Bosch GmbH · DE

Inventors

Ruediger Block · Ditzingen, DE
Christelle Andriot · Ludwigsburg, DE
Rasmus Rettig · Gerlingen, DE
Klaus Walter · Paderborn, DE

Key dates

Filing date	Mar 20, 2003
Grant date	Mar 14, 2006
Priority date	—
Expiry date	Mar 20, 2023

Classification

Technology area (CPC G)Physics
CPC primaryG01D5/24476
WIPO fieldMeasurement
WIPO sectorInstruments

Abstract

The invention proposes a method for detecting the motion of an element relative to a sensor device, in which signals (7 to 15) are evaluated as a function of a pulse generator (1) that is moved past the sensor (3, 4, 5). The signals (7, 8; 10, 11; 13, 14) of two sensor elements (4, 5) disposed next to each other in the movement direction are detected, wherein in order to detect vibrations perpendicular to the movement direction, the phase responses of the signals (7, 8; 10, 11; 13, 14) of the individual sensor elements (4, 5) and of the differential signals (9; 12; 15) of the individual sensor elements (4, 5) are evaluated as to whether all three signals are in phase.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.