An Inductive Sensor System for Linear and Angular Displacement Measurement With Negligible Cross-Sensitivity

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21230%2F25%3A00389580" target="_blank" >RIV/68407700:21230/25:00389580 - isvavai.cz</a>

Result on the web

<a href="https://doi.org/10.1109/TIM.2025.3550217" target="_blank" >https://doi.org/10.1109/TIM.2025.3550217</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1109/TIM.2025.3550217" target="_blank" >10.1109/TIM.2025.3550217</a>

Result language

angličtina

Original language name

An Inductive Sensor System for Linear and Angular Displacement Measurement With Negligible Cross-Sensitivity

Original language description

This article presents a novel inductive sensor system that can simultaneously measure linear and angular displacements. The proposed sensor system aims to mitigate the drawbacks of existing linear and angular displacement sensors, specifically their interdependence on the measurands and sensitivity to harsh environments. The proposed sensor system comprises two main components, the sensor and the interfacing circuit. The sensor has a fixed part and a moving part. The fixed part includes two solenoidal inductor coils and two pairs of planar square-shaped inductor coils wrapped over a bobbin. The moving part, referred to as the shaft, can rotate around its axis and can move transversely along its axis. A thin ferromagnetic core is affixed to the shaft. The axial movement of the shaft alters the inductance of the solenoidal coils, while the rotational movement affects the inductance of the planar coils. The sensor design ensures that both measurements are independent of each other. The interfacing circuit measures the variations in inductance caused by the axial and rotational movements of the shaft. A detailed error analysis has been performed to quantify the potential errors from the sensor and the interfacing circuit. A prototype of the proposed sensor system, capable of measuring 360 degrees for angular displacement and +/- 20 mm for linear displacement, was built and tested in the laboratory. The measurement results indicate that the worst case linearity error is less than 0.75% for linear and angular displacement with a resolution of 47 mu m for linear displacement and 0.169 degrees for angular displacement. The sensor system exhibits negligible cross-sensitivity between measurements, emphasizing its suitability for various practical applications.

Czech name

—

Czech description

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Type

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

CEP classification

—

OECD FORD branch

20202 - Communication engineering and systems

Project

—

Continuities

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year

2025

Confidentiality

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

Name of the periodical

IEEE Transactions on Instrumentation and Measurement

ISSN

0018-9456

e-ISSN

1557-9662

Volume of the periodical

74

Issue of the periodical within the volume

9510112

Country of publishing house

US - UNITED STATES

Number of pages

12

Pages from-to

1-12

UT code for WoS article

001453416800043

EID of the result in the Scopus database

2-s2.0-105001559388