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mutual impedance method

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Series: ASM Handbook
Volume: 22B
Publisher: ASM International
Published: 01 November 2010
DOI: 10.31399/asm.hb.v22b.a0005533
EISBN: 978-1-62708-197-9
... Fig. 25 First-order triangular element. Source: Ref 41 Fig. 26 Induction hardening of shaft fillets. Courtesy of Inductoheat, Inc. Fig. 27 Representation of the induction system for the mutual impedance method. Multiturn coils have m and n turns. Workpiece has differing...
Series: ASM Handbook
Volume: 4C
Publisher: ASM International
Published: 09 June 2014
DOI: 10.31399/asm.hb.v04c.a0005857
EISBN: 978-1-62708-167-2
... by the application of non-destructive technology. It describes the process involved in destructive methods, such as surface hardness measurement, induction hardening pattern and heat-affected zone inspection, and the examination of microstructure before and after induction hardening. It also discusses non...
Series: ASM Handbook
Volume: 4C
Publisher: ASM International
Published: 09 June 2014
DOI: 10.31399/asm.hb.v04c.a0005876
EISBN: 978-1-62708-167-2
... material properties. In the early 1960s, the finite-difference method (FDM) started to be applied to solve eddy current problems for designing induction heating systems. Only some years later was the integral method based on the equivalence with mutually coupled circuits also successfully applied...
Series: ASM Handbook
Volume: 17
Publisher: ASM International
Published: 01 August 2018
DOI: 10.31399/asm.hb.v17.a0006450
EISBN: 978-1-62708-190-0
... . Thus, the impedance plane can be readily displayed using the phasor technique. One method often used in signal analysis and in the representation of eddy-current inspection signals is the phasor method schematically shown in Fig. 6 . In Fig. 6(a) are shown three vectors, A, B , and C , which...
Series: ASM Handbook
Volume: 6A
Publisher: ASM International
Published: 31 October 2011
DOI: 10.31399/asm.hb.v06a.a0005616
EISBN: 978-1-62708-174-0
... in the material, a secondary magnetic field is formed to interact with the primary magnetic field of the drive coil. This mutual magnetic field interaction causes a change in the drive coil electrical impedance, which has two components: one is called the resistance, and the other is called the reactance. An eddy...
Series: ASM Handbook
Volume: 17
Publisher: ASM International
Published: 01 August 2018
DOI: 10.31399/asm.hb.v17.a0006477
EISBN: 978-1-62708-190-0
... magnetic field is formed to interact with the primary magnetic field of the drive coil. This mutual magnetic field interaction causes a change in the drive coil electrical impedance, which has two components: one is called the resistance, and the other is called the reactance. An eddy-current instrument...
Series: ASM Handbook
Volume: 13C
Publisher: ASM International
Published: 01 January 2006
DOI: 10.31399/asm.hb.v13c.a0004115
EISBN: 978-1-62708-184-9
... current leaves the structure to enter the earth or an electrolyte. This article provides a description of the principles of stray current and a discussion on the major types of stray current and their properties and prediction methods. It discusses the consequences of stray current and describes...
Series: ASM Handbook
Volume: 4C
Publisher: ASM International
Published: 09 June 2014
DOI: 10.31399/asm.hb.v04c.a0005909
EISBN: 978-1-62708-167-2
... of the various wear-indication methods, namely, manual checks, ground leakage indication, evaluation of electrical values of the furnace, and temperature measurement. It also presents the working principle, physical restrictions, limitations, and remarks on these methods. crucible furnaces electrical...
Series: ASM Handbook
Volume: 13A
Publisher: ASM International
Published: 01 January 2003
DOI: 10.31399/asm.hb.v13a.a0003584
EISBN: 978-1-62708-182-5
... D.C. , and Kendig M.W. , Ed., Electrochemical Impedance: Analysis and Interpretation , STP 1188, ASTM International , 1994 5. Vetter K.J. , Electrochemical Kinetics , Academic Press , 1967 6. Bard A.J. and Faulkner L.R. , Electrochemical Methods...
Book Chapter

Series: ASM Desk Editions
Publisher: ASM International
Published: 01 December 1998
DOI: 10.31399/asm.hb.mhde2.a0003236
EISBN: 978-1-62708-199-3
...Abstract Abstract Ultrasonic inspection is a nondestructive method in which beams of high-frequency acoustic energy are introduced into a material to detect surface and subsurface flaws, to measure the thickness of the material, and to measure the distance to a flaw. This article provides...
Series: ASM Handbook
Volume: 5B
Publisher: ASM International
Published: 30 September 2015
DOI: 10.31399/asm.hb.v05b.a0006063
EISBN: 978-1-62708-172-6
...://www.hitachi-hitec.com/global/science/lc/lc_basic_1.html 11. “Ion Chromatography with Conductometric Detection,”  www.tau.ac.il/∼advanal/IonChromatography.htm 12. Eggers W.J. , “Evaluation of Organic Coatings by Electrochemical Impedance Methods,” EG&G Princeton Applied Research 13...
Book Chapter

Series: ASM Desk Editions
Publisher: ASM International
Published: 01 December 1998
DOI: 10.31399/asm.hb.mhde2.a0003236
EISBN: 978-1-62708-199-3
... are mutually exclusive. For example, a specimen having high attenuation, such as steel, should be examined by a low frequency beam of about 0.5 MHz and a large transducer diameter about 50 mm (2 in.), which provides a high penetration, but a relatively low lateral resolution of about 6 mm ( 1 4...
Series: ASM Desk Editions
Publisher: ASM International
Published: 01 December 1998
DOI: 10.31399/asm.hb.mhde2.a0003200
EISBN: 978-1-62708-199-3
... heat; low sensitivity to line surges; fixed frequency; low maintenance cost; spares not needed Solid state 180 Hz to 50 kHz 1 kW to 2 MW 75–95 No standby current; high efficiency; no moving parts; needs protection outdoors; no warmup time; impedance matches changing loads Vacuum tube 50 kHz...
Series: ASM Handbook
Volume: 20
Publisher: ASM International
Published: 01 January 1997
DOI: 10.31399/asm.hb.v20.a0002459
EISBN: 978-1-62708-194-8
... of the critical structural elements has greatly impeded the understanding of composition/structure/processing relationships. Figure 1 ( Ref 1 ) provides a comparison of the sizes of various structural elements in materials along with applicable techniques for their observation. Observation and understanding had...
Series: ASM Handbook
Volume: 21
Publisher: ASM International
Published: 01 January 2001
DOI: 10.31399/asm.hb.v21.a0003436
EISBN: 978-1-62708-195-5
.... Seidl A.L. , Inspection of Composite Structures Part 1 , SAMPE J. , Vol 30 ( No. 4 ), July/Aug 1994 , p 38 – 44 85. Cawley P. , The Sensitivity of the Mechanical Impedance Method on Non-Destructive Testing , NDT Int. , Vol 20 ( No. 4 ), Aug 1987 , p 209 – 215 86...
Series: ASM Handbook
Volume: 17
Publisher: ASM International
Published: 01 August 2018
DOI: 10.31399/asm.hb.v17.a0006478
EISBN: 978-1-62708-190-0
.... , The Sensitivity of the Mechanical Impedance Method on Non-Destructive Testing , NDT Int. , Vol 20 ( No. 4 ), Aug 1987 , p 209 – 215 10.1016/0308-9126(87)90243-4 86. Schliekelmann R.J. , Non-Destructive Testing of Bonded Joints; Recent Developments in Testing Systems , Nondestruct. Test...
Series: ASM Handbook
Volume: 17
Publisher: ASM International
Published: 01 August 2018
DOI: 10.31399/asm.hb.v17.9781627081900
EISBN: 978-1-62708-190-0
Series: ASM Handbook
Volume: 13C
Publisher: ASM International
Published: 01 January 2006
DOI: 10.31399/asm.hb.v13c.a0004114
EISBN: 978-1-62708-184-9
..., cathodic protection Abstract Abstract This article describes two principal methods for detecting well casing corrosion, namely, metal-loss tools and casing current measurement, as well as their limitations and advantages. It discusses the factors to be considered in designing well casing cathodic...
Series: ASM Handbook
Volume: 4C
Publisher: ASM International
Published: 09 June 2014
DOI: 10.31399/asm.hb.v04c.a0005877
EISBN: 978-1-62708-167-2
... density, current density, magnetic field strength, and magnetic flux density. This article describes the behavior of the EMF by Maxwell's equations in integral or differential forms. It discusses the definition of potentials; methods of mathematical modeling; boundary conditions; and energy, power density...
Series: ASM Handbook
Volume: 23
Publisher: ASM International
Published: 01 June 2012
DOI: 10.31399/asm.hb.v23.a0005683
EISBN: 978-1-62708-198-6
... current density determination by Tafel extrapolation, potentiodynamic measurement of the polarization resistance, electrochemical impedance measurement, and potentiostatic deaeration. Tests combining corrosion and mechanical forces, such as fretting corrosion tests, environment-assisted cracking tests...