Induction coil as sensor for contactless, continuous in-process determination of steel microstructure by means of Magnetic Induction Spectroscopy (MIS)

2021 ◽  
Vol 33 ◽  
pp. 240-246
Author(s):  
André Leonhardt ◽  
Frank Wendler ◽  
Rafael Wertheim ◽  
Verena Kräusel ◽  
Olfa Kanoun
Keyword(s):  
Magnetic Induction ◽  
Induction Coil ◽  
Steel Microstructure

scholarly journals Determination of Fluid Viscosity Coefficient Using jetAudio and Subtitle Edit

2019 ◽  
Vol 4 (2) ◽  
pp. 83
Author(s):  
Haris Rosdianto ◽  
Emi Sulistri ◽  
Anis Nazihah Mat Daud
Keyword(s):  
Experimental Design ◽  
Travel Time ◽  
Magnetic Induction ◽  
Viscosity Coefficient ◽  
Fluid Viscosity ◽  
Oil Viscosity ◽  
Cooking Oil

The purpose of this study is to produce an experimental design for determining the viscosity coefficient using jetAudio and Subtitle Edit software, and determining the value of the fluid viscosity coefficient by using this experimental design. In this study, the type of fluid used is packaged cooking oil, and the object used is a magnetic ball. The method proposed by the author to measure the travel time of the magnetic ball in cooking oil is by using the combination of coil sensors, jetAudio, and Subtitle Edit. JetAudio software will record magnetic induction traces as the magnetic ball passes the coils into audio format, Subtitle Edit software is used to determine travel time of the magnetic ball based on jetAudio recording data. The results of this study are jetAudio and Subtitle Edit can be used in fluid viscosity coefficient experiments. The value of the cooking oil viscosity coefficient obtained from this study is 0,561431096 Pa.s.

scholarly journals DETERMINATION OF THE OPTIMAL SCANNING STEP FOR EVALUATION OF IMAGE RECONSTRUCTION QUALITY IN MAGNETOACOUSTIC TOMOGRAPHY WITH MAGNETIC INDUCTION

2019 ◽  
Vol 9 (4) ◽  
pp. 38-42
Author(s):  
Adam Ryszard Żywica ◽  
Marcin Ziółkowski
Keyword(s):  
Image Reconstruction ◽  
Magnetic Induction ◽  
Imaging Modality ◽  
Biological Tissues ◽  
Non Invasive ◽  
Scanning Step ◽  
Reconstruction Quality ◽  
Complex Shapes

Magnetoacoustic Tomography with Magnetic Induction (MAT-MI) is a new hybrid imaging modality especially dedicated for non-invasive electrical conductivity imaging of low-conductivity objects such as e.g. biological tissues. The purpose of the present paper is to determine the optimal scanning step assuring the best quality of image reconstruction. In order to resolve this problem a special image reconstruction quality indicator based on binarization has been applied. Taking into account different numbers of measuring points and various image processing algorithms, the conditions allowing successful image reconstruction have been provided in the paper. Finally, the image reconstruction examples for objects’ complex shapes have been analyzed.

scholarly journals 3D Simulation of an Automotive Wheel Hub and Induction Hardening Coil to Solve Coil Lifetime Issues

2021 ◽  
Author(s):  
Sean M. Muyskens ◽  
Tareq I. Eddir ◽  
Robert C. Goldstein
Keyword(s):  
Failure Modes ◽  
Practical Knowledge ◽  
Experimental Testing ◽  
Virtual Prototyping ◽  
Induction Hardening ◽  
Induction Coil ◽  
Element Analysis ◽  
Cause Of Failure

Abstract This paper will revisit a case study originally done for ASM HTS Conference in 2009. The goal then was to solve an induction coil lifetime issue of an induction coil for heat treatment of an automotive wheel hub. At the time, computer simulation was beginning to allow for full virtual prototyping of heat treat applications as an alternative to experimental testing. While practical knowledge allowed for the successful determination of the cause of short coil life, and iterative simulation led to implementation of a longer lasting coil that met the required pattern, simulation was not used at the time to pinpoint the cause of failure. As faster computing becomes more widely available and finite element analysis (FEA) improves in scope and accuracy, virtual prototyping and detection of these failure modes are becoming faster and lower cost options compared to the traditional test and trial method. To highlight the leaps made in virtual prototyping, this case study that was previously done as an axisymmetric 2D model will be done in 3D electromagnetic plus thermal with rotation for the full part.

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