Patent · US Active

Magnetoelastic torque sensor

US9234811B2 · kind B2 · utility

6Cited by

7References

8Claims

0Family size

Assignee

Siemens Aktiengesellschaft · DE

Inventors

Hans-Gerd Brummel · Berlin, DE
Uwe Linnert · Bad Mergentheim, DE
Carl Udo Maier · Stuttgart, DE
Jochen Ostermaier · Erlangen, DE
Uwe Pfeifer · Berlin, DE

Key dates

Filing date	Apr 11, 2012
Grant date	Jan 12, 2016
Priority date	—
Expiry date	Apr 11, 2032

Classification

Technology area (CPC G)Physics
CPC primaryG01L3/102
WIPO fieldMeasurement
WIPO sectorInstruments

Abstract

A magnetoelastic torque sensor (1) has an emission coil (7) for generating a magnetic field in an object (3), the torque of which is to be determined. The emission coil is axially oriented (A) and has an axial emission coil end surface (15) which can be guided towards the object (3). At least two reception coils (9, 33, 43) at a distance from the emission coil and having, respectively, a receiving coil end surface (17) which can be guided towards the object (3) to capture a response signal induced in the object (3) by the magnetic field of the emission coil (7, 31, 41). At least the receiver coil end surface (17) of one of the receiver coils protrudes beyond the emission coil end surface (15) to a selected distance from the object (3).

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