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rotational displacement transducers

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Series: ASM Handbook
Volume: 8
Publisher: ASM International
Published: 01 January 2000
DOI: 10.31399/asm.hb.v08.a0003263
EISBN: 978-1-62708-176-4
... and the various components of a torsion testing machine. These include drive system, test section, torque and rotational displacement transducers, and rigid frame. References References 1. Harmsworth C.L. , Mechanical Testing , Vol 8 , ASM Handbook , American Society for Metals , 1985 , p 62...
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
.... The ceramic (usually lead zirconate) crystal is sandwiched between two strips of tin. When voltage is applied across the strips it creates a displacement in the crystal, known as the piezoelectric effect. When these transducers are mounted to a diaphragm (wall or bottom of the tank), the displacement...
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
...” in this Volume. Minimum detectable displacement for different ultrasonic transducers at 1 MHz Table 1 Minimum detectable displacement for different ultrasonic transducers at 1 MHz Technique Minimum detectable displacement, m / Hz Michelson (diffuse surface) 10 –12 Practical...
Series: ASM Handbook
Volume: 19
Publisher: ASM International
Published: 01 January 1996
DOI: 10.31399/asm.hb.v19.a0002360
EISBN: 978-1-62708-193-1
.... Forced-displacement, forced-vibration, rotational-bending, resonance, and servomechanical systems for various loading conditions are also discussed. crack growth data crack length electric potential difference fatigue crack growth rate testing forced-displacement system forced-vibration system...
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
... attenuation may preclude inspection. Fig. 15 (a) Data curve showing variation of acoustic pressure with distance ratio for a circular search unit. Distance ratio is the distance from the crystal face, d , divided by the length of the near field, N . (b) Image of a transducer pressure field, with Y...
Series: ASM Handbook
Volume: 8
Publisher: ASM International
Published: 01 January 2000
DOI: 10.31399/asm.hb.v08.a0003269
EISBN: 978-1-62708-176-4
.... The article provides information on torsional (rotational shear) tests as well as the basic equipment and setup of torsion testing. Motors, twist and torque transducers, torque sensors, and heating systems as well as the specimen preparation procedure are also discussed. shear testing torsion testing...
Series: ASM Handbook
Volume: 8
Publisher: ASM International
Published: 01 January 2000
DOI: 10.31399/asm.hb.v08.a0003317
EISBN: 978-1-62708-176-4
... systems Parameter Forced displacement Forced vibration Rotational bending Resonance Servomechanical Tension Yes Yes No Yes Yes Compression Yes Yes No Yes Yes Reverse stress Yes Yes Yes Yes Yes Bending Yes Yes Yes Yes Yes Frequency range Fixed Fixed, 1800...
Series: ASM Handbook
Volume: 17
Publisher: ASM International
Published: 01 August 2018
DOI: 10.31399/asm.hb.v17.a0006460
EISBN: 978-1-62708-190-0
... after reflection by the free surface. The actual displacement at z results from the sum of these two signals. Fig. 4 Effect of penetrating laser light: generation occurs perpendicularly as if a conventional piezoelectric transducer was moved over the surface Fig. 5 Rayleigh surface...
Series: ASM Handbook
Volume: 8
Publisher: ASM International
Published: 01 January 2000
DOI: 10.31399/asm.hb.v08.a0003295
EISBN: 978-1-62708-176-4
... of coaxiality and alignment. However, the specimen still undergoes a rapid acceleration at the higher speeds, and inertial or resonance effects are still experienced by the load transducer. Figure 2 illustrates a typical record of shear stress, τ, and shaft rotation, θ, as a function of time. The rotation...
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
... Limitations Immersion systems Excellent signal quality, no moving water, very clean and stable. Good spatial resolution at a prescribed focal zone of the transducer. Large stand-off distances are possible. Can be used in through-transmission (TT) and/or pulse-echo (PE) mode. Best resolution available...
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
... and stable Good spatial resolution at a prescribed focal zone of the transducer Large stand-off distances are possible Can be used in TT and/or PE mode Best resolution available using focused transducers Buoyancy and loading stresses on the part must be considered. Part size, plus...
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: 1A
Publisher: ASM International
Published: 31 August 2017
DOI: 10.31399/asm.hb.v01a.a0006330
EISBN: 978-1-62708-179-5
... was created between two parallel surfaces of a yoke probe. Before casting, the yoke had been embedded into the mold with steel pins inserted vertically in the ends. Displacement was registered on a paper drum rotated by a clock, with a pen attached to levers through hinges connected to the moving pins. Due...
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
... at a frequency of 20 kHz. The apparatus must include some method of measuring the displacement amplitude of the transducer as well as a means of maintaining the specified test temperature. Fig. 1 Schematic of a typical vibratory erosion/cavitation test apparatus. Source: Ref 4 The standard test...
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 Handbook
Volume: 17
Publisher: ASM International
Published: 01 August 2018
DOI: 10.31399/asm.hb.v17.a0006458
EISBN: 978-1-62708-190-0
... configurations for generating a variety of wave modes via the Lorentz force, EMAT displacement profiles and radiation patterns, and making the transition from successful calculations to a working EMAT system. THIS ARTICLE DESCRIBES the basic features of electromagnetic acoustic transducers (EMATs...
Series: ASM Handbook
Volume: 18
Publisher: ASM International
Published: 31 December 2017
DOI: 10.31399/asm.hb.v18.a0006400
EISBN: 978-1-62708-192-4
..., the function of the pump motor is to convert the electric energy and a specific analog value into mechanical rotational energy. The collected information about the pump motor can be indicative of its health state. A wide range of transducers, such as speed, load, voltage, flow, temperature, and pressure, can...
Series: ASM Handbook
Volume: 6A
Publisher: ASM International
Published: 31 October 2011
DOI: 10.31399/asm.hb.v06a.a0005605
EISBN: 978-1-62708-174-0
...), and longitudinal tensile (right) testing. Courtesy of The Ohio State University Fig. 8 Ultrasonic additive manufacturing mechanical testing force versus displacement plots for (a) transverse tensile, (b) shear, and (c) longitudinal tensile tests. Courtesy of The Ohio State University Fig. 11...
Series: ASM Handbook
Volume: 17
Publisher: ASM International
Published: 01 August 2018
DOI: 10.31399/asm.hb.v17.a0006449
EISBN: 978-1-62708-190-0
... ultrasonic, electromagnetic, and eddy-current NDE full-body scans in a single pass ( Ref 2 , 5 ), which saves on time and equipment space requirements. Combination systems typically include multiple orientations of transducers, receivers, probes, and sensors so they can detect defects in multiple...
Series: ASM Handbook
Volume: 8
Publisher: ASM International
Published: 01 January 2000
DOI: 10.31399/asm.hb.v08.a0003259
EISBN: 978-1-62708-176-4
... Metals—Rotating Bar Bending Fatigue Testing ISO 144 Steel—Reverse Bend Testing of Wire Strain rate ranges for different tests Table 1 Strain rate ranges for different tests Type of test Strain rate range, s −1 Creep tests 10 −8 to 10 −5 Pseudostatic tension or compression...