An axial flux eddy current sensor with perpendicular coils for speed measurement

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21220%2F24%3A00370007" target="_blank" >RIV/68407700:21220/24:00370007 - isvavai.cz</a>

Alternative codes found

RIV/68407700:21230/24:00370007

Result on the web

<a href="http://hdl.handle.net/10467/113998" target="_blank" >http://hdl.handle.net/10467/113998</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.sna.2023.114917" target="_blank" >10.1016/j.sna.2023.114917</a>

Result language

angličtina

Original language name

An axial flux eddy current sensor with perpendicular coils for speed measurement

Original language description

This paper presents an axial flux eddy current sensor with a compact and simple structure for measuring the rotating speed of iron shafts. The sensor structure is optimized for high sensitivity with a novel configuration of the coils positioned perpendicularly to each other. The sensor comprises two D-shaped excitation coils and two D-shaped pick-up coils in a double-layer structure. A disc-shaped magnetic shield or core shields the coils. Two iron shafts with different material properties are considered. A new cup-shaped configuration of nonmagnetic copper and aluminum caps mounted on iron shafts improves sensitivity and suppresses susceptibility to shaft material properties and airgap variation. 2D and 3D finite element methods are utilized for the performance analysis of the sensor. The measurements are performed at speeds up to ± 3000 rpm and different excitation frequencies from 400 Hz to 4 kHz. The eddy current speed sensor has excellent linearity characteristics with a nonlinearity error of 0.15%. The geometry of the coils is further optimized and improved for maximum sensitivity and compactness. The fault-tolerant capability of the sensor is also evaluated.

Czech name

—

Czech description

—

Type

J_imp - Article in a specialist periodical, which is included in the Web of Science database

CEP classification

—

OECD FORD branch

20201 - Electrical and electronic engineering

Project

—

Continuities

S - Specificky vyzkum na vysokych skolach

Publication year

2024

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Name of the periodical

Sensors and Actuators A: Physical

ISSN

0924-4247

e-ISSN

1873-3069

Volume of the periodical

365

Issue of the periodical within the volume

January

Country of publishing house

CH - SWITZERLAND

Number of pages

16

Pages from-to

1-16

UT code for WoS article

001136923300001

EID of the result in the Scopus database

2-s2.0-85183780794