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rotational displacement transducers

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Series: ASM Technical Books
Publisher: ASM International
Published: 01 February 2005
DOI: 10.31399/asm.tb.chffa.t51040115
EISBN: 978-1-62708-300-3
..., an inductive transducer (LVDT) for measuring ram displacement, and a dc tachometer for measuring flywheel speed. In Fig. 11.13 it can be seen that, due to frictional and inertial losses in the press drive, the flywheel slows down by about (5 rpm) before deformation begins. The flywheel requires 3.24 s...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 April 2013
DOI: 10.31399/asm.tb.imub.t53720293
EISBN: 978-1-62708-305-8
... as a double search unit is rotated. The wedge effect is least when the division between the transmitting and receiving transducers is parallel to the axis of the cylinder. Wedge effects in the couplant are a particular problem on castings curved in two directions. One solution in this case is to use a small...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 April 2013
DOI: 10.31399/asm.tb.imub.t53720117
EISBN: 978-1-62708-305-8
...) machines are electromechanical devices that use a large actuator screw threaded through a moving crosshead ( Fig. 7 ). The screw is turned in either direction by an electric motor through a gear reduction system. The screws are rotated by a variable control motor and drive the moveable crosshead up or down...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 October 2011
DOI: 10.31399/asm.tb.mnm2.t53060149
EISBN: 978-1-62708-261-7
... may be mounted with polymers using a heat and press method. Fig. 7.4 Dual-specimen mount for sample holder After mounting, specimens are ground in a series of steps using successively finer abrasives. Most polishing is done with cloths attached to rotating wheels that are impregnated...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 November 2019
DOI: 10.31399/asm.tb.mfadr7.t91110563
EISBN: 978-1-62708-247-1
.... , Micromachined Ultrasonic Transducers , Springer ( New York , 2005 ). [26] Ergun A.S. , Huang Y. , Zhuang X. , Oralkan O. , Yarahoglu G.G. , Khuri-Yakub B.T. , “ Capacitive Micromachined Ultrasonic Transducers: Fabrication Technology ”, IEEE Trans. Ultrasonics...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2006
DOI: 10.31399/asm.tb.ex2.t69980323
EISBN: 978-1-62708-342-3
... by shearing of the billet from the material adhering to the container wall. With increasing friction displacement or shear displacement, with increasing ram displacement, the temperature with which the billet material enters the deformation zone, ϑ E , increases if the initial billet temperature...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 November 2019
DOI: 10.31399/asm.tb.mfadr7.t91110485
EISBN: 978-1-62708-247-1
... separate quadrants. For sensing vertical cantilever deflection, the upper two quadrants of the photodetector are grouped together (Group “A”) and the lower two quadrants are grouped together (Group “B”). Vertical displacement of the cantilever results in one group, i.e., A or B collecting more light than...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2004
DOI: 10.31399/asm.tb.aacppa.t51140021
EISBN: 978-1-62708-335-5
... by injection under pressure requires nonexpendable dies and is commonly referred to as pressure die casting. Countergravity processes that employ low-pressure differentials such as low pressure, displacement, or pumped systems for mold filling are considered variations of either expendable or gravity permanent...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2006
DOI: 10.31399/asm.tb.ex2.9781627083423
EISBN: 978-1-62708-342-3
Series: ASM Technical Books
Publisher: ASM International
Published: 30 April 2021
DOI: 10.31399/asm.tb.tpsfwea.t59300079
EISBN: 978-1-62708-323-2
... than others and, for this reason, metals like cobalt/chromium alloys are used as the immersed surfaces of ultrasonic transducers and special bronzes are used to address cavitation damage in large ship propellers. Concrete in dam spillways are prone to cavitation damage and research is always underway...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 February 2005
DOI: 10.31399/asm.tb.chffa.t51040025
EISBN: 978-1-62708-300-3
... alloys. The load and displacement, or sample height, are measured during the test. From this information the flow stress is calculated at each stage of deformation, or for increasing strain. Figure 4.5 shows the tooling used for compression tests conducted at the Engineering Research Center for Net...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 June 1988
DOI: 10.31399/asm.tb.eihdca.t65220143
EISBN: 978-1-62708-341-6
... temperature-measuring techniques make use of transducers which generate and detect sound waves in the workpiece. The velocity of sound for a given material is a function of the material’s elastic modulus and density. Because these properties are functions of temperature, the speed of sound can be used...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 February 2005
DOI: 10.31399/asm.tb.chffa.9781627083003
EISBN: 978-1-62708-300-3
Series: ASM Technical Books
Publisher: ASM International
Published: 01 January 2017
DOI: 10.31399/asm.tb.sccmpe2.t55090367
EISBN: 978-1-62708-266-2
... on the investigator to use test methods and to provide an interpretation of the test results that will enable the materials users to make a proper assessment of the risk of SCC in a given application. Constant-strain (fixed-displacement) tests are widely used, primarily because a variety of simple and inexpensive...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 November 2013
DOI: 10.31399/asm.tb.mfub.t53740325
EISBN: 978-1-62708-308-9
... or bitumastic film that hardens sufficiently to form an impervious barrier. Emulsion compounds rely on the polarity and preferential attraction of emulsifiers or inhibitors to metal surfaces for protection of the surfaces after the water phase has evaporated. Water-displacing polar compounds contain...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2004
DOI: 10.31399/asm.tb.aacppa.9781627083355
EISBN: 978-1-62708-335-5
Series: ASM Technical Books
Publisher: ASM International
Published: 01 November 2012
DOI: 10.31399/asm.tb.ffub.t53610549
EISBN: 978-1-62708-303-4
... to similar parts in critical areas or typical areas where the failure has occurred. The strain gages are connected to a monitoring device either directly with wires or indirectly by radio signals for monitoring moving or rotating parts. In this way, the actual dynamic stresses can be determined. For products...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2003
DOI: 10.31399/asm.tb.cfap.t69780383
EISBN: 978-1-62708-281-5
... Artifacts generated by improper platinum sputter coating of a 4.6 mm (0.18 in.) diameter polycarbonate rotating beam fatigue specimen. This SEM view shows a pattern in the coating reminiscent of “mudcracking.” Source: Ref 2 Restrictions on nonconductive samples can be overcome by changing...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 June 2007
DOI: 10.31399/asm.tb.pmsspmp.9781627083126
EISBN: 978-1-62708-312-6
Series: ASM Technical Books
Publisher: ASM International
Published: 30 April 2021
DOI: 10.31399/asm.tb.tpsfwea.9781627083232
EISBN: 978-1-62708-323-2