Patent · US Expired

Device with two generators for measuring the gradients of magnetic fields

US4692702A · kind A · utility

12Cited by

9References

5Claims

0Family size

Assignee

Nukem, LLC · DE

Inventors

Gerhard Huschelrath · Laufach, DE
Herbert Diehl · Leverkusen, DE

Key dates

Filing date	Sep 6, 1985
Grant date	Sep 8, 1987
Priority date	—
Expiry date	Sep 6, 2005

Classification

Technology area (CPC G)Physics
CPC primaryG01R33/022
WIPO fieldMeasurement
WIPO sectorInstruments

Abstract

The object of the invention is a device with two Hall generators (12, 14) for measuring the gradients of magnetic leakage fields in the non-destructive testing of materials. The two Hall generators (12, 14) are arranged at a distance from each other with their broad sides on a flat carrier substrate (18). They are positioned along a common line (36) with respect to which they each have the same alignment. Furthermore the two Hall generators are arranged close to the edges (40) of two opposite sides of the carrier substrate (18) that are free of connections.

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