Patent · US Active

Sensor for locating metallic objects and method for evaluating measurement signal of such a sensor

US7759939B2 · kind B2 · utility

7Cited by

9References

27Claims

0Family size

Assignee

Robert Bosch GmbH · DE

Inventors

Uwe Skultety-Betz · Echterdingen, DE
Bjoern Haase · Stuttgart, DE
Kai Renz · Echterdingen, DE

Key dates

Filing date	Jul 25, 2005
Grant date	Jul 20, 2010
Priority date	—
Expiry date	Oct 31, 2026

Classification

Technology area (CPC H)Electricity
CPC primaryH05K2201/10151
WIPO fieldMeasurement
WIPO sectorInstruments

Abstract

A sensor for locating metallic objects, in particular a metal sensor for building materials, includes at least one transmission coil and at least one reception conductor loop system that are inductively coupled to one another. The reception conductor loop system is made up of conductor structures on a printed circuit board. A second reception conductor loop system can be provided, which is situated coaxial to the first reception conductor loop system in a common first plane with it on the printed circuit board. The sensor preferably operates in a frequency range between 1 kHz and 10 kHz.

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