Patent · US Active

Hall effect probe with exchangeable wear tips

US9182212B2 · kind B2 · utility

0Cited by

4References

21Claims

0Family size

Assignee

OLYMPUS NDT, INC. · US

Inventors

Matthew Stanton · Reading, US
Steven Abe LaBreck · Boston, US

Key dates

Filing date	Nov 7, 2012
Grant date	Nov 10, 2015
Priority date	—
Expiry date	Mar 8, 2034

Classification

Technology area (CPC H)Electricity
CPC primaryH01L22/12
WIPO fieldMeasurement
WIPO sectorInstruments

Abstract

Disclosed is a Hall sensor probe that configured to be coupled with one of a plurality of magnetic targets for measuring the thickness of a non-ferromagnetic wall. The probe comprises a magnetic field source, a Hall sensor, a concentrator and a main housing. The novel aspects of the probe include a wear tip that is exchangeably affixed onto the main-housing, leaving a permanent gap from and disjoined from the concentrator in a manner that transfers stress from the tip directly onto the main-housing. To serve every aspects of the primary objective, being it mechanical, thermal and operational, the material of the tip preferably has a fracture toughness higher than 20 MPa·m1/2, wear coefficient higher than 100, and a magnetic susceptibility lower than 0.001.

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