Enhanced magnetic-sensing characteristics for application of magnetorheological elastomer

2019 ◽  
pp. 221-248
Author(s):  
Miao Yu
Keyword(s):  
Magnetorheological Elastomer ◽  
Magnetic Sensing ◽  
Sensing Characteristics

Effects of remanent magnetization on dynamic magnetomechanical and magnetic-sensing characteristics in bi-layer multiferroics

2019 ◽  
Vol 85 (2) ◽  
pp. 20601
Author(s):  
Jitao Zhang ◽  
Weiwei Zhu ◽  
Dongyu Chen ◽  
Kang Li ◽  
Qingfang Zhang ◽  
...  
Keyword(s):  
Magnetic Field ◽  
Lead Zirconate Titanate ◽  
Remanent Magnetization ◽  
Iron Alloy ◽  
Bias Field ◽  
Field Application ◽  
Quality Factors ◽  
Magnetic Sensing ◽  
Field Detection ◽  
Sensing Characteristics

Influences of remanent magnetization on dynamic magnetomechanical mechanisms in a bi-layer asymmetric magnetoelectric (ME) laminate consisting of lead zirconate titanate and samarium iron alloy has been studied systematically, and the underlying hysteresis physics involved in dynamic magnetomechanical process as well as its magnetic-sensing characteristics was intensively characterized. To appreciate the distinct magnetostriction and ferromagnetism simultaneously in samarium iron alloy, key magnetomechanical parameters of dynamic piezomagnetic coefficient, Young's modulus and mechanical quality factors exhibit hysteresis behaviors under magnetic field application. Consequently, high sensitivity in proposed bi-payer laminate for field detection can be reached without the facilitation of additional bias field. Experimental results show that the ME output has an approximately linear correlation with the applied AC magnetic field, and the low-frequency and the detection limits at 1 kHz and 120 kHz can reach 2.3 × 10−6 T and 2.2 × 10−8 T, respectively. These unique features provide such an asymmetric ME composite great potentials for weak magnetic field detection without DC bias field.

Evaluation of a Silent Speech Interface Based on Magnetic Sensing and Deep Learning for a Phonetically Rich Vocabulary

2017 ◽  
Author(s):  
Jose A. Gonzalez ◽  
Lam A. Cheah ◽  
Phil D. Green ◽  
James M. Gilbert ◽  
Stephen R. Ell ◽  
...  
Keyword(s):  
Deep Learning ◽  
Magnetic Sensing ◽  
Speech Interface ◽  
Silent Speech

Deep Controlled Source Electro-Magnetic Sensing: A Cost Effective, Long-Term Tool for Sequestration Monitoring

2017 ◽  
Author(s):  
Douglas LaBrecque ◽  
◽  
Russell D. Brigham ◽  
Conny Schmidt-Hattenburger ◽  
Evan Um ◽  
...  
Keyword(s):  
Cost Effective ◽  
Magnetic Sensing ◽  
Controlled Source ◽  
Electro Magnetic

Photoinduced Hall Effect for Low-Temperature Magnetic Sensing

2019 ◽  
Vol 10 ◽  
pp. 1-4
Author(s):  
Teslim Ayinde Fasasi ◽  
Valerio Apicella ◽  
Dong Li ◽  
Antonio Ruotolo
Keyword(s):  
Low Temperature ◽  
Hall Effect ◽  
Magnetic Sensing

Irradiation Wavelength-Dependent Photocurrent Sensing Characteristics of AuNPs/P3HT Composites on Volatile Vapor

2016 ◽  
Vol 16 (3) ◽  
pp. 596-602 ◽  
Author(s):  
Bin Chen ◽  
Masami Mokume ◽  
Chuanjun Liu ◽  
Kenshi Hayashi
Keyword(s):  
Sensing Characteristics ◽  
Irradiation Wavelength

scholarly journals Transforming Pt-SnO2 Nanoparticles into Pt-SnO2 Composite Nanoceramics for Room-Temperature Hydrogen-Sensing Applications

Materials ◽  
2021 ◽  
Vol 14 (9) ◽  
pp. 2123
Author(s):  
Ming Liu ◽  
Caochuang Wang ◽  
Pengcheng Li ◽  
Liang Cheng ◽  
Yongming Hu ◽  
...  
Keyword(s):  
Room Temperature ◽  
Gas Sensing ◽  
Sintering Temperature ◽  
Sno2 Nanoparticles ◽  
Hydrogen Sensing ◽  
Sensing Applications ◽  
Nanostructured Metal Oxides ◽  
Low Dimensional ◽  
Sensing Characteristics ◽  
Nanostructured Metal

Many low-dimensional nanostructured metal oxides (MOXs) with impressive room-temperature gas-sensing characteristics have been synthesized, yet transforming them into relatively robust bulk materials has been quite neglected. Pt-decorated SnO2 nanoparticles with 0.25–2.5 wt% Pt were prepared, and highly attractive room-temperature hydrogen-sensing characteristics were observed for them all through pressing them into pellets. Some pressed pellets were further sintered over a wide temperature range of 600–1200 °C. Though the room-temperature hydrogen-sensing characteristics were greatly degraded in many samples after sintering, those samples with 0.25 wt% Pt and sintered at 800 °C exhibited impressive room-temperature hydrogen-sensing characteristics comparable to those of their counterparts of as-pressed pellets. The variation of room-temperature hydrogen-sensing characteristics among the samples was explained by the facts that the connectivity between SnO2 grains increases with increasing sintering temperature, and Pt promotes oxidation of SnO2 at high temperatures. These results clearly demonstrate that some low-dimensional MOX nanocrystals can be successfully transformed into bulk MOXs with improved robustness and comparable room-temperature gas-sensing characteristics.

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