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magnetostrictive transducers

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Series: ASM Handbook
Volume: 17
Publisher: ASM International
Published: 01 August 2018
DOI: 10.31399/asm.hb.v17.a0006471
EISBN: 978-1-62708-190-0
...), laser ultrasound phased array transducers, magnetostriction transducers, and couplants. The article discusses four basic types of search units with piezoelectric transducers. These include the straight-beam contact type, the angle-beam contact type, the dual-element contact type, and the immersion type...
Series: ASM Handbook
Volume: 5
Publisher: ASM International
Published: 01 January 1994
DOI: 10.31399/asm.hb.v05.a0001226
EISBN: 978-1-62708-170-2
..., or about 18 kHz, to remove a variety of contaminants from parts immersed in aqueous media. This article describes the process, design considerations and the equipment in ultrasonic cleaning. The components used in the generation of ultrasonic wave include piezoelectric and magnetostrictive transducers...
Series: ASM Handbook
Volume: 17
Publisher: ASM International
Published: 01 August 2018
DOI: 10.31399/asm.hb.v17.a0006458
EISBN: 978-1-62708-190-0
... Acoustic Transducers in the NDE of Non-Conducting Composite Materials , KSME Int. J. , Vol 13 , 1999 , p 403 72. Kim Y.Y. and Kwon Y.E. , Review of Magnetostrictive Patch Transducers and Applications in Ultrasonic Nondestructive Testing of Waveguides , Ultrasonics , Vol 62 , 2015...
Series: ASM Handbook
Volume: 17
Publisher: ASM International
Published: 01 August 2018
DOI: 10.31399/asm.hb.v17.a0006441
EISBN: 978-1-62708-190-0
... ). This example is typical of the types of transducer that have been developed by the main suppliers of GWT equipment and is the dominant form of transduction in industrial use. There is an alternative to piezoelectric transduction, which is magnetostrictive transduction ( Ref 4 ); this is used less often...
Series: ASM Desk Editions
Publisher: ASM International
Published: 01 December 1998
DOI: 10.31399/asm.hb.mhde2.a0003194
EISBN: 978-1-62708-199-3
... 4 Process summary chart for USIG Ultrasonic impact grinding (USIG) Principle Tool vibrated around 20,000 cycles per second by magnetostrictive transducer. Fine abrasive particles in a water slurry between tool and workpiece reach high velocities and dislodge material from workpiece...
Series: ASM Handbook
Volume: 17
Publisher: ASM International
Published: 01 August 2018
DOI: 10.31399/asm.hb.v17.a0006438
EISBN: 978-1-62708-190-0
..., laps, and cracks Not applicable to nonmagnetic metals or material Can detect flaws up to 1 4 inch below surface under good conditions Iron and steel, nickel, cobalt Ultrasonic UT—phased array, guided wave, wave-field, EMAT, magnetostrictive (MS) piezoelectric High-frequency vibrations...
Series: ASM Handbook
Volume: 13A
Publisher: ASM International
Published: 01 January 2003
DOI: 10.31399/asm.hb.v13a.a0003669
EISBN: 978-1-62708-182-5
... in Ref 4 . The test apparatus ( Fig. 1 ) produces axial oscillation of the test specimen, which is partially immersed in the test liquid. This is accomplished using either a magnetostrictive or piezoelectric transducer driven by an electronic oscillator or amplifier. The transducer vibrates...
Series: ASM Handbook
Volume: 5
Publisher: ASM International
Published: 01 January 1994
DOI: 10.31399/asm.hb.v05.a0001223
EISBN: 978-1-62708-170-2
.... Ultrasonic transducers, which convert electrical energy into ultrasonic vibrations, can be used in conjunction with the vapor degreasing process. The transducer materials used are of two basic types, electrostrictive (barium titanate) and magnetostrictive. The latter is capable of handling larger power...
Series: ASM Handbook
Volume: 6
Publisher: ASM International
Published: 01 January 1993
DOI: 10.31399/asm.hb.v06.a0001469
EISBN: 978-1-62708-173-3
... or magnetostrictive transducer crystals using electrical energy from a power supply. The transducer assembly is rigidly attached to a booster rod that increases or decreases the vibrational amplitude. Finally, the booster is connected to the sonotrode, which transfers the vibratory motion to the workpiece...
Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0003569
EISBN: 978-1-62708-180-1
... specimen, which is partially immersed in the test liquid. This test is performed by either a magnetostrictive or piezoelectric transducer driven by an electronic oscillator or amplifier. The transducer vibrates at a frequency of 20 kHz. The apparatus must include some method of measuring the displacement...
Book Chapter

Series: ASM Desk Editions
Publisher: ASM International
Published: 01 December 1998
DOI: 10.31399/asm.hb.mhde2.a0003213
EISBN: 978-1-62708-199-3
Series: ASM Handbook
Volume: 2
Publisher: ASM International
Published: 01 January 1990
DOI: 10.31399/asm.hb.v02.a0001093
EISBN: 978-1-62708-162-7
...-49Co-49Fe, oriented 49Ni-Fe, 79Ni-4Mo-Fe, 45Ni-3Mo-Fe Processed for square hysteresis loop, tape toroidal cores Magnetic amplifiers Oriented 49Ni-Fe, 79Ni-4Mo-Fe Processed for square hysteresis loop, tape toroidal cores Transducers 2V-49Co-49Fe, 45-50Ni-Fe High saturation magnetostriction...
Book Chapter

Series: ASM Desk Editions
Publisher: ASM International
Published: 01 December 1998
DOI: 10.31399/asm.hb.mhde2.a0003213
EISBN: 978-1-62708-199-3
... diaphragm. Either piezoelectric transducers or magnetostrictive transducers can be used. An electrical/ultrasonic generator that converts a standard electrical frequency of 60 Hz into the high frequencies required in ultrasonic transmission, generally in the range of 20 to 80 kHz A rectangular tank...
Series: ASM Handbook
Volume: 8
Publisher: ASM International
Published: 01 January 2000
DOI: 10.31399/asm.hb.v08.a0003315
EISBN: 978-1-62708-176-4
... with the adaptation of magnetostrictive and piezoelectric-type transducers to fatigue testing. This method translated 20 kHz electrical voltage signals into 20 kHz mechanical displacements. A displacement-amplifying acoustical horn and the test specimen were driven into resonance by the transducer. This concept has...
Series: ASM Handbook
Volume: 17
Publisher: ASM International
Published: 01 August 2018
DOI: 10.31399/asm.hb.v17.a0006469
EISBN: 978-1-62708-190-0
... Fig. 1 Principles of ultrasonic pulse-echo testing. (a) Transducer on a plate. (b) Transducer on a plate with a small defect. (c) Transducer on a plate containing a large defect. Adapted from Ref 2 Fig. 2 Ultrasonic transmission. (a) With no defect. (b) With a small defect. (c...
Series: ASM Handbook
Volume: 19
Publisher: ASM International
Published: 01 January 1996
DOI: 10.31399/asm.hb.v19.a0002363
EISBN: 978-1-62708-193-1
.... A piezoelectric transducer bonded to the specimen could measure acoustic emissions, and the amplitude of MAE depends on the magnetostriction coefficient, frequency, and amplitude of the driving field. Because the stress alters the magnetocrystalline anisotropy, MAE should also change with the applied stress...
Book: Machining
Series: ASM Handbook
Volume: 16
Publisher: ASM International
Published: 01 January 1989
DOI: 10.31399/asm.hb.v16.a0002159
EISBN: 978-1-62708-188-7
... to change the electrical energy into mechanical vibrations. Two types of converters are available for USM systems. One type uses a magnetostrictive device, and the other a quartz or a lead zirconate titanate piezoelectric transducer A horn to focus the vibratory energy on the tool. Horns as large as 130...
Series: ASM Handbook
Volume: 17
Publisher: ASM International
Published: 01 August 2018
DOI: 10.31399/asm.hb.v17.a0006461
EISBN: 978-1-62708-190-0
...Summary of techniques for generation and detection of Rayleigh waves Table 1 Summary of techniques for generation and detection of Rayleigh waves Technique Schematic Source Advantages Disadvantages Ref Piezoelectric transducer applied directly Cylindrical symmetry Simple...
Series: ASM Desk Editions
Publisher: ASM International
Published: 01 November 1995
DOI: 10.31399/asm.hb.emde.a0003062
EISBN: 978-1-62708-200-6
... strongly piezoelectric, and rapid strides have been made in their development and use as actuator motors, as ultrasonic transducers, and for electromechanical sensing. Piezoelectrics (PLZT) also elicit wide interest as electrooptic materials for such applications as high-speed shutters, switches, and light...
Series: ASM Desk Editions
Publisher: ASM International
Published: 01 November 1995
DOI: 10.31399/asm.hb.emde.a0003021
EISBN: 978-1-62708-200-6