Understanding the effect of methane gas sensitivity using ultrasonic sensors and multi-matching layers inside a natural gas vehicle tank

Kim, Kwonse; Choi, Dooseuk; Im, Seokyeon

doi:10.1016/j.ultras.2019.105970

Cited by 2 publications

(2 citation statements)

References 35 publications

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“…Kim et al constructed a standard ultrasonic sensor made up of electrical components, an acoustic matching layer, and a piezoelectric ceramic, including SP 170 and ethylene vinyl acetate. [100] Altering several parameters, such as the dimensional and material properties of the transmission and receiving elements, led the authors to conclude that fine-tuning can assist in determining a high-sensitivity ultrasonic sensor for measuring CH 4 in a constant volume chamber.…”

Section: Materials Appropriated and Designsmentioning

confidence: 99%

“…Highlighted in the sections above, a vast array of traditional, novel, and hybrid complex materials have been uncovered and adopted within the frameworks of sensors dedicated toward detecting GHGs. These include the carbon nanomaterials, polymers, metal oxide semiconductors, and transition metal dichalcogenides, in calorimetric sensors; [102,108,117,122]] the solid polymer electrolytes, pseudo-solid-state electrolytes, and carbon materials, in electrochemical sensors; [67][68][69]109,121,133,137]] pyroelectric elements, LEDs, and PDs, in IR/FTIR/NDIR sensors; [72][73][74][75][76]78,84,85,109,131]] metal oxides, carbon materials, polymers, and single-or multi-mode optical fibers, in opticalbased sensors; [86][87][88][89][90][92][93][94]109,134]] piezoelectric materials, piezoceramics, carbon materials, and polymers, in acoustic/ultrasonic sensors; [91,[95][96][97][98][99]100,110,111] as well as polymer films in calorimetric or gas chromatographic sensors. [103,104,…”

Section: A Succinct Dictation Of Novel Materials In Ghg Sensingmentioning

confidence: 99%

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Significance of Various Sensing Mechanisms for Detecting Local and Atmospheric Greenhouse Gases: A Review

Bassous,

Rodriguez,

Leal

et al. 2023

Advanced Sensor Research

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Elucidating the capital mechanism for detecting greenhouse gases (GHGs) in the atmosphere, based on sensitivity, performance, and cost‐effectiveness, is challenging, but markedly needed in the presence of global climate change caused by GHG emissions and subsequent feedback. Often measured in units of Global Warming Potential (GWP), the GHGs are linked to climate change, especially due to their intrinsic tendencies to absorb heat energy. Hence, measures for reducing GHG emissions are implemented within the context of improving energy consumption; substituting high‐GHG output fuels for more neutral alternatives; trapping and sequestering carbon; and reconditioning agricultural processes. The extent to which these curtailment methods succeed hinges on GHG detection and quantification mechanisms. However, the universal determination of GHGs is constrained by the availability of sensors; this work, therefore, highlights sensor advantages/disadvantages and potential enrichment strategies. Herein, experimental developments in GHG sensing technologies (i.e., chemiresistive, electrochemical, infrared, optical, acoustic, calorimetric, and gas chromatographic sensors) are evaluated, in terms of approaching desirable features, such as sensitivity, selectivity, stability, accuracy, and low cost. This work underscores ongoing global research to produce universal, cost‐effective methods that, with high sensitivity, proffer accurate GHG readings to allay global warming, through comparisons of recent, up‐and‐coming sensor technologies.

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Section: Materials Appropriated and Designsmentioning

confidence: 99%