Patent · US Expired

Acceleration pickup

US4901571A · kind A · utility

9Cited by

4References

9Claims

0Family size

Assignee

Robert Bosch GmbH · DE

Inventors

Gunter Reinhardt · Zirndorf, DE
Kasimir Stromski · Echterdingen, DE

Key dates

Filing date	Jan 25, 1989
Grant date	Feb 20, 1990
Priority date	—
Expiry date	Jan 25, 2009

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY10S73/03
WIPO fieldMeasurement
WIPO sectorInstruments

Abstract

An acceleration pickup has a housing of a diamagnetic or paramagnetic material enclosing a ferromagnetic ball acting as seismic mass. The ball is held in a starting position on the bottom of the housing by means of a magnetic field generated by a permanent magnet or an electromagnet. By means of four induction sensitive sensors such as for example Hall effect sensors arranged opposite each other on the circumference of the housing, the momentary value and direction of acceleration component acting on the pickup is determined. The acceleration pickup is simple in construction and cost effective in manufacture and is easily adjustable to different applications.

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