Differential Magnetoelastic Compressive Force Sensor Utilizing Two Amorphous Alloy Ring Cores

Adam Bieńkowski; Roman Szewczyk; Jacek Salach; Roman Kolano

doi:10.4028/www.scientific.net/SSP.154.23

Paper Titles

Preface

Rapid Prototyping Methodologies for Ceramic Micro Components
p.1

Finite Element Model of Polyelectrolyte Hydrogels Swelling - Comparison with Experiments
p.9

Kinetics of Swelling and Drug Release from PNIPAAm/Alginate Stimuli Responsive Hydrogels
p.17

Differential Magnetoelastic Compressive Force Sensor Utilizing Two Amorphous Alloy Ring Cores
p.23

Measurements of Strain in Ceramic Components Using Magnetostrictive Delay Line
p.29

Magnetomechanical Properties of Terfenol-D Powder Composites
p.35

A Simulation Study of Magnetostrictive Material Terfenol-D in Automotive CNG Fuel Injection Actuation
p.41

SMA Thin Strip for Rotary-Driving Element
p.47

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Differential Magnetoelastic Compressive Force Sensor Utilizing Two Amorphous Alloy Ring Cores

Abstract:

Paper presents the results of investigation on functional characteristics of magnetoelastic compressive force sensor utilizing two Fe81Si4B15 amorphous alloy ring-shaped cores. Uniform distribution of stresses in one of two cores was achieved owing to special non-magnetic backings. Signal from sensing coils of cores was connected to differential amplifier, whereas sine wave voltage signal was applied to magnetizing circuit. High stress sensitivity of developed sensor was indicated together with expected reduction of temperature sensitivity of magnetoelastic sensor. These results confirm, that differential configuration of magnetoelastic sensor is suitable for practical application in sensors development.