Patent · US Active

Magnetic field sensor using acoustically driven ferromagnetic resonance

US11837211B2 · kind B2 · utility

0Cited by

9References

7Claims

0Family size

Assignee

The Regents of the University of California · US

Inventors

Sayeef Salahuddin · Walnut Creek, US
Dominic Labanowski · Berkeley, US

Key dates

Filing date	Dec 11, 2017
Grant date	Dec 5, 2023
Priority date	—
Expiry date	May 2, 2039

Classification

Technology area (CPC G)Physics
CPC primaryG01R33/1284
WIPO fieldMeasurement
WIPO sectorInstruments

Abstract

An acoustically driven ferromagnetic resonance (ADFMR) device includes a piezoelectric element, a pair of transducers arranged to activate the piezoelectric element to generate an acoustic wave, a magnetostrictive element arranged to receive the acoustic wave, and a readout circuit to detect one of either a change in the magnetostrictive element or a change in the acoustic wave.

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