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Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.auto.c9001624
EISBN: 978-1-62708-218-1
... Abstract An electronic sensor coil failed continuity testing, indicating that a break was present in the polymer-coated wire. An area of the wire showed a green discoloration and the break in the wire was located in this same region. The discoloration was suspected to be an indicator of what...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.modes.c9001593
EISBN: 978-1-62708-234-1
... Abstract A failure analysis was conducted on a flow-sensing device that had cracked while in service. The polysulfone sensor body cracked radially, adjacent to a molded-in steel insert. This article describes the investigative methods used to conduct the failure analysis. The techniques...
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Published: 01 June 2019
Fig. 1 Sensor coil after opening. The break in the wire is indicated by the arrow. More
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Published: 01 June 2019
Fig. 2 Scanning electron micrograph of the sensor coil wire at the break, showing corrosion debris and a nodular morphology More
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Published: 01 June 2019
Fig. 3 Analysis of the corrosion debris from the sensor coil wire by FTIR produced absorption bands that are indicative of metallic oxides, hydroxides, and water. More
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Published: 01 June 2019
Fig. 1 The failed flow sensor shown as received exhibiting cracks radially within the plastic collar around the metal insert More
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.auto.c9001901
EISBN: 978-1-62708-218-1
... Abstract Thermogravimetric analysis (TGA) and differential scanning calorimetry (DSC) were used to analyze an automotive polyoxymethylene (POM) sensor housing that was depolymerizing during service. It was found that a combination of heat, oxygen, and sulfuric acid attacked and caused premature...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.aero.c0006394
EISBN: 978-1-62708-217-4
... in the formation of grain boundary precipitates, including chromium carbides. It was concluded that failure of the diaphragm was due to a combination of sensitization caused by improper heat treatment and subsequent SCC. It was recommended that the remaining 24 sensor diaphragms from the affected batch be removed...
Series: ASM Failure Analysis Case Histories
Volume: 1
Publisher: ASM International
Published: 01 December 1992
DOI: 10.31399/asm.fach.v01.c9001021
EISBN: 978-1-62708-214-3
... in the form of flight by-flight records of the counts from the vertical accelerometer sensors fitted to the airframe and a series of “overstress” events recorded during the life of the aircraft. The bolt hole was examined by eddy current testing, visual examination, high-powered light microscope, and scanning...
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Published: 01 June 2019
Fig. 4 Outcomes from successive thermal and gravimetric runs on the new automotive sensor part. More
Series: ASM Handbook
Volume: 11B
Publisher: ASM International
Published: 15 May 2022
DOI: 10.31399/asm.hb.v11B.a0006871
EISBN: 978-1-62708-395-9
... lamps also emit IR and visible radiation. The absorption of visible and IR radiation increases the surface temperature of the test specimen during the test. Black standard or black panel sensors (black-painted metal sheets with or without backside insulation, described in ISO 4892-1, Ref 6 ) serve...
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
.... The resolution in a digital photographic image is determined by the number of pixels in the imaging sensor; the higher the number of pixels, the greater the image resolution. High-resolution photographs are attainable with multiple megapixel (mp) sensor arrays. Professional digital cameras have sensors ranging...
Series: ASM Handbook
Volume: 11B
Publisher: ASM International
Published: 15 May 2022
DOI: 10.31399/asm.hb.v11B.a0006851
EISBN: 978-1-62708-395-9
... the feature of interest. Digital cameras feature a built-in metering sensor that optimizes the brightness of a subject by adjusting the selected aperture, shutter speed, and/or exposure settings. The sensor measures the brightness in multiple selected areas of the frame and sets the exposure accordingly...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.process.c9001601
EISBN: 978-1-62708-235-8
.... Introduction of a real time defect detection system would be a welcome addition to the trial and error process that has been used over the years in attempt to eliminate defects. Song et al. 12 have devised a real time defect detection system that consists of force sensors, signal amphifiers, an AC/DC...
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
... Photography Digital Imaging Scientific digital photography is similar in many ways to color film photography. In film photography, the image is recorded on silver halide crystals in the film emulsion. In digital photography, the image is recorded on a microelectronic sensor made up of an array...
Series: ASM Handbook
Volume: 11B
Publisher: ASM International
Published: 15 May 2022
DOI: 10.31399/asm.hb.v11B.a0006936
EISBN: 978-1-62708-395-9
.... , PVDF Ultrasonic Sensors for In-Air Applications: A Review , IEEE Transactions on Ultrasonics, Ferroelectrics and Frequency Control , Vol 68 (No. 7 ), 2021 , p 2324 – 2335 10.1109/TUFFC.2021.3078069 13. Sun G.G. , Zhou Z.G. , Li G.H. , and Zhou W.B. , Development...
Series: ASM Handbook
Volume: 11B
Publisher: ASM International
Published: 15 May 2022
DOI: 10.31399/asm.hb.v11B.a0006914
EISBN: 978-1-62708-395-9
... furnace used to evaluate the flame spread of materials in ASTM E84. Source: Ref 13 Fig. 3 Apparatus used in ASTM E162. 1, temperature sensor; 2, exhaust stack; 3, igniter; 4, test specimen; 5, radiant panel. Source: Ref 14 Fig. 1 Temperature, smoke evolution, and concentration...
Series: ASM Handbook
Volume: 11A
Publisher: ASM International
Published: 30 August 2021
DOI: 10.31399/asm.hb.v11A.a0006824
EISBN: 978-1-62708-329-4
.... The combustor was a single-chamber, annular design. The majority of the worn and cracked components of the combustor assembly were accounted for during disassembly of the turbine, including the collar surrounding the acoustic sensor, ferrules around the fuel nozzles, the combustor baffle, and the bolts joining...
Series: ASM Handbook
Volume: 11A
Publisher: ASM International
Published: 30 August 2021
DOI: 10.31399/asm.hb.v11A.a0006822
EISBN: 978-1-62708-329-4
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
... 1 are: Component Function Stop valve Controls gas flow; full-on/full-off (controlled by the controller) Controller Opens and closes stop valve (responds to temperature sensor) Temperature/pressure sensor Senses water temperature and pressure Check valve Prevents reverse flow...