Patent · US Active

Device and method for sensing torques, torsional natural frequencies, and/or torsional oscillations without contact

US10845257B2 · kind B2 · utility

2Cited by

12References

14Claims

0Family size

Assignee

BASF SE

Inventors

Oskar Stephan · Hockenheim, DE
Roland Schuhmann · Bensheim, DE
Tom Catternan · Geismar, US

Key dates

Filing date	Nov 2, 2016
Grant date	Nov 24, 2020
Priority date	—
Expiry date	Feb 9, 2037

Classification

Technology area (CPC G)Physics
CPC primaryG01L3/105
WIPO fieldMeasurement
WIPO sectorInstruments

Abstract

The invention relates to a device (14) and to a method for the contactless detection of a torque of a shaft (10) and/or torsional natural frequencies and/or torsional oscillations. The shaft (10) contains a ferromagnetic material. A measurement head (16) facing toward a shaft wall (12) comprises an excitation coil (22) which couples a magnetic field into the shaft (10). The measurement head (16) furthermore contains a number of measurement coils (24, 26, 28, 30), which measure the magnetic field emerging from the shaft (10).

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