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impedance matching

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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
... adequate isolation between the driver and the receiver electronics. There also are other solid-state devices that can substitute for diodes and thus, in the PE configuration, to the sensitive receiver input. (iii) T 1 and T 2 are impedance-matching transformers to maximize power transfer from the driver...
Series: ASM Handbook
Volume: 8
Publisher: ASM International
Published: 01 January 2000
DOI: 10.31399/asm.hb.v08.a0003297
EISBN: 978-1-62708-176-4
... to bear in mind the significance of the perfect impedance matching of the striker bar, incident bar, and incident tube, as well as the configuration of the transfer flange in the design of the loading fixture for proper functioning of the stress-reversal Hopkinson technique. From the equality...
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
... diaphragm, an intermediate aluminum block is used to improve impedance matching for more efficient transmission of vibratory energy to the diaphragm. The assembly is inexpensive to manufacture due to low material and labor costs. This low cost makes piezoelectric technology desirable for ultrasonic cleaning...
Series: ASM Handbook
Volume: 8
Publisher: ASM International
Published: 01 January 2000
DOI: 10.31399/asm.hb.v08.a0003299
EISBN: 978-1-62708-176-4
... the specimen. See discussion in text. Source: Ref 3 Fig. 3 Problem caused by the hardness of ceramic specimens and techniques developed to solve the problem. (a) Schematic illustration of indentation of hard ceramic into the bars. (b) Specimen-insert assembly with impedance matched tungsten carbide...
Series: ASM Handbook
Volume: 4B
Publisher: ASM International
Published: 30 September 2014
DOI: 10.31399/asm.hb.v04b.a0005924
EISBN: 978-1-62708-166-5
... Fig. 6 Closed-loop recirculation system with tower. Source: Ref 10 Fig. 1 Elements of an induction heat treating system Fig. 13 Picture of lift-and-rotate mechanism Fig. 15 Load matching/impedance matching. Source: Ref 9 Fig. 16 Output tank circuits...
Series: ASM Handbook
Volume: 4C
Publisher: ASM International
Published: 09 June 2014
DOI: 10.31399/asm.hb.v04c.a0005843
EISBN: 978-1-62708-167-2
... Fig. 1 Manufacturer's data sheet. Courtesy of Jackson Transformer Company Fig. 10 Impedance matching for load tuning Fig. 11 Equivalent circuit for induction heating load Fig. 12 Relationship between the Q and the coupling to the load. The higher the Q...
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
... was developed. It is so named because it has a wide beam pattern that, when scanned, covers a relatively wide swath in the manner of a paintbrush, although such inspections may now be performed with a phased array. Paintbrush transducers usually are constructed of a mosaic or series of matched crystal...
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: 8
Publisher: ASM International
Published: 01 January 2000
DOI: 10.31399/asm.hb.v08.a0003300
EISBN: 978-1-62708-176-4
... inserted, and the set screws tightened. The dimensions of the flanges and the design of any adapter or mechanical connection device must be such that the torsional mechanical impedance matches that of the bar so that the stress pulses do not undergo reflection when propagating through. This condition...
Series: ASM Handbook
Volume: 8
Publisher: ASM International
Published: 01 January 2000
DOI: 10.31399/asm.hb.v08.a0003304
EISBN: 978-1-62708-176-4
.... The anvil has a disposable brass nose, which absorbs part of the impact energy. The 22 by 22 mm 2 (0.87 by 0.87 in. 2 ) specimen is a thin plate of AlN/AlN/Al composite, backed up by the same size plate, which, ideally, has matching impedance. This plate flies off the back of the specimen after the main...
Series: ASM Handbook
Volume: 17
Publisher: ASM International
Published: 01 August 2018
DOI: 10.31399/asm.hb.v17.a0006470
EISBN: 978-1-62708-190-0
... Waves in Solid Media , Cambridge University Press , 1999 8. Redwood M. , Mechanical Waveguides , Pergamon Press , 1960 9. Lynnworth L.C. , Ultrasonic Impedance Matching from Solids to Gases , IEEE T. Son. Ultrason. , Vol 12 ( No. 2 ), June 1965 , p 37 – 48 10.1109...
Series: ASM Handbook
Volume: 4C
Publisher: ASM International
Published: 09 June 2014
DOI: 10.31399/asm.hb.v04c.a0005841
EISBN: 978-1-62708-167-2
... that of the lower tube, so less heat is needed there. To obtain the correct temperature at the braze joint, more turns are placed around the bottom, thicker-walled part. A single-turn inductor may have inductance so low that an impedance-matching transformer must be used to tune a power supply to run within its...
Series: ASM Handbook
Volume: 8
Publisher: ASM International
Published: 01 January 2000
DOI: 10.31399/asm.hb.v08.a0003303
EISBN: 978-1-62708-176-4
Series: ASM Handbook
Volume: 4C
Publisher: ASM International
Published: 09 June 2014
DOI: 10.31399/asm.hb.v04c.a0005838
EISBN: 978-1-62708-167-2
... is used to couple to a low-impedance tank), and overall price. In addition to providing electrical isolation, transformers are used extensively in induction heating power supplies to match the impedance of the output network to the output of the inverter, and to convert the impedance of an inductor...
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: 6A
Publisher: ASM International
Published: 31 October 2011
DOI: 10.31399/asm.hb.v06a.a0005559
EISBN: 978-1-62708-174-0
... ac impedance (resistance to current flow in an ac circuit) or resistance in a dc welding loop. The AVC can monitor and respond only to the welding controls input voltage and is more limited in scope than the CC feedback system. The CC level is usually entered into the weld control by the user...
Series: ASM Handbook
Volume: 13A
Publisher: ASM International
Published: 01 January 2003
DOI: 10.31399/asm.hb.v13a.a0003654
EISBN: 978-1-62708-182-5
... the electrochemical impedance spectroscopy and electrochemical noise measurements in a laboratory, especially for the inspection of coatings. electrochemical technique storage tank electrochemical impedance spectroscopy electrochemical noise inspection A VARIETY OF ELECTROCHEMICAL TECHNIQUES are used...
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
... Acoustic characteristics of selected materials Table 2 Acoustic characteristics of selected materials Material Longitudinal velocity, 10 5 cm/s Acoustic impedance ( Z ), g/cm 2 · s Density, g/cm 3 Air 0.3 40 0.0012 Water 1.5 1.5 × 10 5 1.00 Epoxy resin 3.0 3.9 × 10 5...
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
... Acoustic characteristics of selected materials Table 2 Acoustic characteristics of selected materials Material Longitudinal velocity, 10 5 cm/s Acoustic impedance ( Z ), g/cm 2 ⋅ s Density, g/cm 3 Air 0.3 40 0.0012 Water 1.5 1.5 × 10 5 1.00 Epoxy resin 3.0 3.9 × 10 5...
Series: ASM Handbook
Volume: 6
Publisher: ASM International
Published: 01 January 1993
DOI: 10.31399/asm.hb.v06.a0001363
EISBN: 978-1-62708-173-3
... the large working area. Using a push-pull configuration, where the upper set of transformers matches the lower set, eliminates the need for long cable loops to the electrodes, resulting in a lower secondary impedance. A longer electrode life can be obtained in push-pull welding compared to series welding...