Effect of microstructure on the hysteresis performance of force transducers using AISI 4340 steel spring material

Fank, Sinan; Demirkol, Mehmet

doi:10.1016/j.sna.2005.09.007

Cited by 17 publications

(6 citation statements)

References 3 publications

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“…The hysteresis error is difference between ( y ) upscale and ( y ) downscale . The maximum hysteresis 15.04% was found at the acceleration of 0.9 g. Hysteresis error [ 63 , 64 ] seems to be caused by elastic after-effect. [ 65 ]…”

Section: Resultsmentioning

confidence: 99%

“…The hysteresis error is difference between (y) upscale and (y) downscale . The maximum hysteresis 15.04% was found at the acceleration of 0.9 g. Hysteresis error [63,64] seems to be caused by elastic after-effect. [65] Sensors Finally, repeatability of the electrical performance of the sensor samples was examined ( Figure 11).…”

Section: Electrical Characteristics Of the Sensor Samplesmentioning

confidence: 99%

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Cantilever Type Acceleration Sensors Made by Roll-to-Roll Slot-Die Coating

Lee

2020

Sensors

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This paper presents the fabrication by means of roll-to-roll slot-die coating and characterization of air gap-based cantilever type capacitive acceleration sensors. As the mass of the sensor moves in the opposite direction of the acceleration, a capacitance change occurs. The sensor is designed to have a six layers structure with an air gap. Fabrication of the air gap and cantilever was enabled by coating and removing water-soluble PVA. The bottom electrode, the dielectric layer, and the sacrificial layer were formed using the roll-to-roll slot-die coating technique. The spacer, the top electrode, and the structural layer were formed by spin coating. Several kinds of experiments were conducted for characterization of the fabricated sensor samples. Experimental results show that accelerations of up to 3.6 g can be sensed with an average sensitivity of 0.00856 %/g.

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Section: Resultsmentioning

confidence: 99%

“…The hysteresis error is difference between (y) upscale and (y) downscale . The maximum hysteresis 15.04% was found at the acceleration of 0.9 g. Hysteresis error [63,64] seems to be caused by elastic after-effect. [65] Sensors Finally, repeatability of the electrical performance of the sensor samples was examined ( Figure 11).…”

Section: Electrical Characteristics Of the Sensor Samplesmentioning

confidence: 99%

Cantilever Type Acceleration Sensors Made by Roll-to-Roll Slot-Die Coating

Lee

2020

Sensors

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“…The hysteresis error is calculated by Equations (2) and (3) [40,41]:uh=|false(yfalse)upscale−false(yfalse)downscale| %uhmax=uhmaxrO⋅100=uhmaxymax−ymin·100 where uh is the hysteresis error, uhmax is the maximum hysteresis error, and rO is the full-scale output range, i.e., ymax−ymin. The hysteresis error indicates the differences between an upscale sequential test result (false(yfalse)upscale) and a downscale sequential test result (…”

Section: Resultsmentioning

confidence: 99%

Fabrication and Characterization of Roll-to-Roll Printed Air-Gap Touch Sensors

Lee

2019

Polymers

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Although printed electronics technology has been recently employed in the production of various devices, its use for the fabrication of electronic devices with air-gap structures remains challenging. This paper presents a productive roll-to-roll printed electronics method for the fabrication of capacitive touch sensors with air-gap structures. Each layer of the sensor was fabricated by printing or coating. The bottom electrode, and the dielectric and sacrificial layers were roll-to-roll slot-die coated on a flexible substrate. The top electrode was formed by roll-to-roll gravure printing, while the structural layer was formed by spin-coating. In particular, the sacrificial layer was coated with polyvinyl alcohol (PVA) and removed in water to form an air-gap. The successful formation of the air-gap was verified by field emission scanning electron microscopy (FE-SEM). Electrical characteristics of the air-gap touch sensor samples were analyzed in terms of sensitivity, hysteresis, and repeatability. Experimental results showed that the proposed method can be suitable for the fabrication of air-gap sensors by using the roll-to-roll printed electronics technology.

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“…Figure 6 shows the effect of alloy elements on the yield strength of specimens tempered at different temperatures. It can be seen from Figure 6 that there is a great difference of the yield strength between steel B is greatly affected by the distribution of tempered carbides [9], until the tempering temperature reaches 500 • C, this transformation is completed, leading to the yield strength of three specimens with the maximum value (as seen in Figure 6). With the tempering temperature increasing, the recrystallization of α-phase occurs.…”

Section: Effect Of Fe-v-nb Modificators On the Microstructure Ofmentioning

confidence: 97%

Effects of the Nanostructured Fe‐V‐Nb Modificators on the Microstructure and Mechanical Properties of Si‐Mn Steel

Wang

Cui

Jia

et al. 2012

Journal of Nanomaterials

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The nanostructured Fe-V-Nb master alloy was prepared in vacuum rapid quenching furnace and then was added in the steel melts as modificators before casting. Next, the effects of the nanostructured Fe-V-Nb modificators on the microstructure and mechanical properties of the steel were studied. The results show that the grain size of the steel has been effectively refined, which is mainly because the dispersed nanoscale particles can produce more nucleation sites during the solidification of the liquid steel. Tensile properties and fracture morphology reveal that the yield strength and toughness of the steel modified by nanostructured Fe-V-Nb modificators are better than that of the microalloyed steel. TEM analysis shows that vanadium and niobium in the modificators exist in the form of (V, Nb) C which effectively increases the nucleation rate and leads to better mechanical properties of the steel.

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Effect of microstructure on the hysteresis performance of force transducers using AISI 4340 steel spring material

Cited by 17 publications

References 3 publications

Cantilever Type Acceleration Sensors Made by Roll-to-Roll Slot-Die Coating

Cantilever Type Acceleration Sensors Made by Roll-to-Roll Slot-Die Coating

Fabrication and Characterization of Roll-to-Roll Printed Air-Gap Touch Sensors

Effects of the Nanostructured Fe‐V‐Nb Modificators on the Microstructure and Mechanical Properties of Si‐Mn Steel

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