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optical fault isolation

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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
... contacts fiber optic sensors induction furnaces induction melting insulation resistance refractory lining refractory materials wear monitoring MELTING WITH INDUCTION crucible furnaces (ICFs) is a well-established and reliable technology. The mechanical and electrical construction, power supply...
Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0003503
EISBN: 978-1-62708-180-1
... and Quality Assurance The FMEA provides test engineers with information on anticipated failure modes and causes, against which to match fault detection and isolation capabilities. These are used to ensure that all failures can be detected, that appropriate tests are developed, and that built-in tests can...
Series: ASM Handbook
Volume: 4C
Publisher: ASM International
Published: 09 June 2014
DOI: 10.31399/asm.hb.v04c.a0005852
EISBN: 978-1-62708-167-2
... wiring from higher-signal levels, and isolation of servo controls from all other signals. The control designer must also consider the manufacturing procedures and environment that will exist in the final equipment installation. If the machine is to be installed in a job shop environment where only...
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
... and isolate different fault types (e.g., failure mode, effects, and criticality analysis). In the next layer, the degradation level is identified to provide an input to the prognostics block and to predict the remaining useful life of the asset. The top two layers are responsible for the intelligent decisions...
Series: ASM Handbook
Volume: 9
Publisher: ASM International
Published: 01 December 2004
DOI: 10.31399/asm.hb.v09.a0003721
EISBN: 978-1-62708-177-1
... in the other articles. Finally, it introduces the scale of structural features and the concept of hierarchical relations among them. General Features of Structure The term structure, as used here, refers primarily to the study of those microstructural features that can be investigated using optical...
Series: ASM Handbook
Volume: 10
Publisher: ASM International
Published: 15 December 2019
DOI: 10.31399/asm.hb.v10.a0006681
EISBN: 978-1-62708-213-6
..., and spectrometry techniques with data analysis. electron diffraction transmission electron microscopy crystal structure Overview Introduction Microstructure observation is an essential approach for materials characterization, which is primarily performed by using light optical microscopy...
Series: ASM Handbook Archive
Volume: 10
Publisher: ASM International
Published: 01 January 1986
DOI: 10.31399/asm.hb.v10.a0001766
EISBN: 978-1-62708-178-8
... from small regions of the specimen. This article illustrates the effectiveness of the technique in solving materials problems. The first section of the article provides information on analytical electron microscope (AEM) and its basic operational characteristics as well as on electron optics, electron...
Series: ASM Handbook
Volume: 10
Publisher: ASM International
Published: 15 December 2019
DOI: 10.31399/asm.hb.v10.a0006668
EISBN: 978-1-62708-213-6
... the sample in place must not have a high vapor pressure. A valve isolates the electron-optics column from the specimen chamber so the electron-optics column remains under vacuum during sample loading. This arrangement enables the electron gun to remain activated during specimen exchange, hastening turnaround...
Series: ASM Handbook
Volume: 18
Publisher: ASM International
Published: 31 December 2017
DOI: 10.31399/asm.hb.v18.a0006383
EISBN: 978-1-62708-192-4
... OF RUPTURE due to wear is localized in a small volume of material, which is removed in the form of wear particles (or, wear debris). Different wear mechanisms generate different wear particles with different sizes, shapes, surface morphologies, and colors. Thus, isolation and analysis of these particles...
Series: ASM Desk Editions
Publisher: ASM International
Published: 01 November 1995
DOI: 10.31399/asm.hb.emde.a0003067
EISBN: 978-1-62708-200-6
... applications, lighting, information display, electronic processing and electronic devices, optical and ophthalmic products, and communications equipment. architectural glass biomedical glass dental glass glass fibers lamp glass optical glass specialty glasses traditional glasses GLASS in its...
Series: ASM Handbook
Volume: 9
Publisher: ASM International
Published: 01 December 2004
DOI: 10.31399/asm.hb.v09.a0003724
EISBN: 978-1-62708-177-1
.... Velocities required to produce partitionless solidification must exceed 5 m/s (40 to 400 in./s). The phase diagrams obviously do not apply in this situation. Figure 35 and 36 show optical and transmission electron micrographs, respectively, of a single-phase microsegregation-free solid solution...
Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0003539
EISBN: 978-1-62708-180-1
... Examination of a fatigue fracture usually begins with unaided visual observation, often followed by viewing with a hand lens or optical stereomicroscope. Macroscopic examination of fracture surfaces can be performed on-site (when the broken part is accessible), requires little or no preparation...
Series: ASM Handbook
Volume: 6A
Publisher: ASM International
Published: 31 October 2011
DOI: 10.31399/asm.hb.v06a.a0005553
EISBN: 978-1-62708-174-0
..., and control. The article describes the commonly applied sensing techniques for arc welding control: arc sensing and nonimaging and imaging optics. It reviews the physics-based, empirically-derived, and neural network models for arc welding control. The article also discusses the research and development...
Series: ASM Handbook
Volume: 11
Publisher: ASM International
Published: 15 January 2021
DOI: 10.31399/asm.hb.v11.a0006776
EISBN: 978-1-62708-295-2
...” in this Volume). Macroscopic Appearance of Fatigue Fracture Examination of a fatigue fracture usually begins with unaided visual observation, often followed by viewing with a hand lens or optical stereomicroscope. Macroscopic examination of fracture surfaces can be performed on-site (when the broken part...
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
... to quantify the defect generation and storage mechanisms operative in materials subjected to impulse loading histories ( Ref 25 ). Smith ( Ref 24 ) in his study using optical metallography first described how substructural studies of shock-recovered samples can provide valuable insight...
Series: ASM Handbook Archive
Volume: 10
Publisher: ASM International
Published: 01 January 1986
DOI: 10.31399/asm.hb.v10.9781627081788
EISBN: 978-1-62708-178-8
Series: ASM Handbook
Volume: 9
Publisher: ASM International
Published: 01 December 2004
DOI: 10.31399/asm.hb.v09.a0003760
EISBN: 978-1-62708-177-1
... colony have extensive branching and are all interconnected. On reviewing any of their 241 optical micrographs individually, there appear to be many isolated cementite precipitates. However, by stepping through the image sequence back and forth, following precipitates as they branch out and intertwine...
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
..., and equipment limitations. Various crack measurement techniques, including optical, ultrasonic, acoustic emission, electrical, and compliance methods, are also reviewed. The article discusses the two major aspects of FCGR test analysis: to ensure suitability of the test data and to calculate growth rates from...
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
... are to ensure suitability of the test data and to calculate growth rates from the data. The article presents an analysis of the crack growth data. Optical, compliance, and electric potential difference are the most common laboratory techniques, and the article reviews their merits and limitations. Forced...
Series: ASM Handbook
Volume: 19
Publisher: ASM International
Published: 01 January 1996
DOI: 10.31399/asm.hb.v19.a0002353
EISBN: 978-1-62708-193-1
... very extensive plastic deformation occurs in the persistent slip bands. Lukas and Klesnil ( Ref 8 ) considered that stacking-fault energy and the attendant ease of cross-slip would play a role in formation of the ladderlike structure, and they thus studied 15 and 31% Z n brasses. The stacking-fault...