感度検出によるコイル作動型センサ

Japanese Patent JP7194699

B2

A magnetic field sensor includes a first coil responsive to a first AC coil drive signal having a first frequency, a magnetic field sensing element responsive to a sensing element drive signal and configured to simultaneously detect a directly coupled magnetic field generated by the first coil and a reflected magnetic field generated by an eddy current induced in a conductive target by the first coil, the conductive target disposed proximate to the magnetic field sensing element, the magnetic field sensing element further configured to generate a magnetic field signal, a second coil responsive to a second AC coil drive signal having a second frequency that is the same as the first frequency and current sensing circuitry configured to measure a magnitude of the second AC coil drive signal that causes the magnetic field signal to be approximately zero.

JP2000049029	MANUFACTURE OF LAYER STRUCTURE CONTAINING ARTIFICIAL ANTIFERROMAGNETIC SYSTEM AND MAGNETORESISTANCE SENSOR SYSTEM
WO/2020/145344	MAGNETIC FIELD CALIBRATION DEVICE AND METHOD FOR CALIBRATING MAGNETISM MEASUREMENT DEVICE USING SAME
JP3258241	SINGLE ELECTRONIC CONTROLLED MAGNETIC RESISTANCE ELEMENT

Latham, alexander
Fermont, Claude
Baudeau, Jason
Panethia-Le Coeur, Millian
Brian Kadgan
Romero, Hernan Day

JP2019565248A

December 22, 2022

April 23, 2018

Click for automatic bibliography generation  

Allegro Microsystems LRC
Comisaria Talenergie Atomic Eo Energy Alternateve

G01R33/09; G01R33/02; G01R35/00; H01L43/02; H01L43/08

JP2016519310A
JP2016525216A
JP2016224064A
JP2009527745A
JP2016502110A
JP2001153683A

US20160169983
US20160139229

Osamu Yamamoto
Toru Miyamae
Motoharu Nakanishi
Kenichi Torii

Previous Patent: Dosage and administration of anti-C5 antibodies to treat protein-losing enteropathy in patients

Next Patent: Sensor band for multimodal sensing of biometric data