Patent · US Active

Device and method for detecting the number of revolutions of a rotatable shaft

US9310180B2 · kind B2 · utility

0Cited by

2References

14Claims

0Family size

Assignee

Robert Bosch GmbH · DE

Inventors

Axel Kaschner · Pittsburgh, US
Holger Behrens · Reutlingen, DE

Key dates

Filing date	Nov 9, 2012
Grant date	Apr 12, 2016
Priority date	—
Expiry date	Jan 13, 2033

Classification

Technology area (CPC G)Physics
CPC primaryG01P3/487
WIPO fieldMeasurement
WIPO sectorInstruments

Abstract

An apparatus for detecting a number of revolutions of a rotatable shaft, is proposed, which apparatus encompasses a magnet disposed on the shaft, and a micromechanical device. A detection element of the micromechanical device, which element interacts with the magnet, is advanced stepwise upon each movement of the magnet past the micromechanical device in accordance with the movement direction of the magnet.

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