1-13 of 13 Search Results for

transmissive lens

Follow your search
Access your saved searches in your account

Would you like to receive an alert when new items match your search?
Close Modal
Sort by
Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0003527
EISBN: 978-1-62708-180-1
... from physical damage, especially to the electrical contacts. The professional digital camera body accepts the same lenses as used on professional single-lens reflex film cameras. Typically, the zoom lens is beneficial for recording the condition of the component, and a macro-lens is useful...
Series: ASM Handbook
Volume: 11
Publisher: ASM International
Published: 15 January 2021
DOI: 10.31399/asm.hb.v11.a0006763
EISBN: 978-1-62708-295-2
... surface without shadowing from the lens. When using a ring flash for macrophotography, the higher focal length macro/micro lenses have the disadvantage of having the flash at a higher angle of incidence for side lighting, which diminishes the side lighting effect. If side lighting is critical, a lower...
Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0003533
EISBN: 978-1-62708-180-1
... electron beam passes the anode, it enters the first set of electromagnetic lenses, collectively called the condenser lens. The condenser lens control is given a variety of labels by manufacturers, such as resolution, probe current, and so forth. Regardless of the name, the condenser lens acts to demagnify...
Series: ASM Handbook
Volume: 11
Publisher: ASM International
Published: 15 January 2021
DOI: 10.31399/asm.hb.v11.a0006769
EISBN: 978-1-62708-295-2
... order of magnitude to approximately 10 nm in routine instruments, with ultimate values below 3 nm. Useful magnification thus extends beyond 10,000× up to more than 100,000×, closing the gap between the light microscope and the transmission electron microscope. The depth of focus, ranging from 1 μm...
Series: ASM Failure Analysis Case Histories
Volume: 2
Publisher: ASM International
Published: 01 December 1993
DOI: 10.31399/asm.fach.v02.c9001293
EISBN: 978-1-62708-215-0
.... It was recommended that the components be removed from service at the first indication of corrosion. Visual inspection with the aid of a magnifying lens could be used to detect corrosion in the field. The component could continue to be utilized when hardened to 54 to 57 HRC as long as there is no visual evidence...
Series: ASM Handbook
Volume: 11
Publisher: ASM International
Published: 15 January 2021
DOI: 10.31399/asm.hb.v11.a0006764
EISBN: 978-1-62708-295-2
... for dimensional anomalies, color variation, cracks, pits, etc. Only sensitive to surface flaws Low cost, intuitive. May be enhanced with PT, MT, IR, UV, laser reference lines, video, and magnifying lenses All Thermal/infrared (IR)—includes passive thermal inspections, flash thermography, and laser flying...
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
... initiated from the base of pits. Source: Ref 19 Fig. 32 Transmission electron fractograph of aluminum alloy laboratory spectrum loading fatigue test. Striation spacing varies according to loading, which consisted of ten cycles at a high stress alternating with ten cycles at a lower stress...
Series: ASM Handbook
Volume: 11
Publisher: ASM International
Published: 15 January 2021
DOI: 10.31399/asm.hb.v11.a0006774
EISBN: 978-1-62708-295-2
... a shiny, highly reflective surface indicates brittle cracking by cleavage or intergranular fracture. In addition, when intergranular fracture occurs in coarse-grained materials, individual equiaxed grains have a distinctive rock-candy appearance that may be visible with a hand lens. Surface roughness also...
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
... examination. Fig. 28 Metallographic cross section (nital etched) through carbon steel boiler tube. Corrosion fatigue cracks have initiated from the base of pits. Source: Ref 19 Fig. 32 Transmission electron fractograph of aluminum alloy laboratory spectrum loading fatigue test. Striation...
Series: ASM Handbook
Volume: 11
Publisher: ASM International
Published: 15 January 2021
DOI: 10.31399/asm.hb.v11.a0006777
EISBN: 978-1-62708-295-2
... conditions. (b) High-quality transmission electron microscopy replica showing elongated shear dimples from fatigue region Fig. 8 Fatigue fracture in gas-carburized and modified 4320 steel showing overview of initiation, stable crack propagation, and unstable crack propagation, with extent of stable...
Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0003540
EISBN: 978-1-62708-180-1
.../matrix boundary coincident with the grain boundary ( Ref 4 ). When the grain structure is equiaxed, the fracture surface typically reveals a faceted “rock candy” fracture surface ( Fig. 2a ), which may be visible at low magnification (hand lens) if the grain size is coarse. In some cases, however...
Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0003524
EISBN: 978-1-62708-180-1
... at magnifications from 1 to 50 or 100×, it may be conducted by the unaided eye, a hand lens or magnifier, a low-power stereoscopic microscope, or a SEM. Macroscopic photography of up to 20× magnification requires a high-quality camera and special lenses; alternatively, a large magnifying glass may be used...
Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0003537
EISBN: 978-1-62708-180-1
... proceedings on fracture in 1962 ( Ref 5 ) contained only a few electron fractographs. The rapid development of both the transmission electron microscope (TEM) and soon after, the scanning electron microscope (SEM) during the 1960s provided new and very powerful tools to examine fracture surfaces...