講演抄録/キーワード |
講演名 |
PSE-Coated Interdigital Resonator for Selective Detection of Ammonia Gas Sensor ○Warunee Krudpun・Nonchanutt Chudpooti(KMUTNB)・Panida Lorwongthagool・Somporn Seewattanapon(RUS)・Prayoot Akkaraekthalin(KMUTNB) エレソ技報アーカイブはこちら |
抄録 |
(和) |
This paper presents, for the first time, a microwave gas sensor utilizing Poly (styrene-co-maleic acid) partial isobutyl/methyl mixed ester (PSE) coated on an interdigital resonator. This coated film was investigated for its sensing behavior toward gases in a volatile organic compound, e.g. ammonia, acetone, ethanol and methanol. The PSE is the dielectric material sensed to gas density. Conventionally, the PSE is used in DC gas sensor [1]. To sense the gas, it was employed as solvent mixed with a conductor dust such as carbon or any conductive powder for conductive property. So, it can detect gas variation by the change of resistivity in its sensor. The sensor was designed based on a DiClad 880 substrate with an interdigital resonator, operating at 4 GHz, on the middle of an ungrounded coplanar waveguide transmission line structure with rejection characteristic by coating the PSE solution as a sensed-gas material. The transmission coefficient, S21, was changed depending on the dielectric properties of the PSE change due to various concentrations of gas targeted in a range of 50 to 1000 ppm (50 ppm, 200 ppm, 500 ppm, 1000 ppm) under a static system in a closed chamber at room temperature. The extracted results of differential transmission coefficient change, S21, from four samples of ammonia concentration can be separated impressively. To confirm the selectivity performance of ammonia gas, three interference gases, e.g. acetone, ethanol and methanol, were investigated. The measured results show that the proposed sensor can discriminate ammonia gas from three interference gases over the entire concentration range in only three minutes. Moreover, comparing with conventional sensing material in microwave regime (PEDOT:PSS and carbon nanotube) [2], our sensor with PSE coating is it has many advantages, such as low cost, low profile in preparation, chemical stability and less effect with water as ambient humidity increases. The PSE-coated sensor in this paper is suitable for a high-performance selectivity in ammonia gas sensing applications in industrial processes and agricultural products. |
(英) |
This paper presents, for the first time, a microwave gas sensor utilizing Poly (styrene-co-maleic acid) partial isobutyl/methyl mixed ester (PSE) coated on an interdigital resonator. This coated film was investigated for its sensing behavior toward gases in a volatile organic compound, e.g. ammonia, acetone, ethanol and methanol. The PSE is the dielectric material sensed to gas density. Conventionally, the PSE is used in DC gas sensor [1]. To sense the gas, it was employed as solvent mixed with a conductor dust such as carbon or any conductive powder for conductive property. So, it can detect gas variation by the change of resistivity in its sensor. The sensor was designed based on a DiClad 880 substrate with an interdigital resonator, operating at 4 GHz, on the middle of an ungrounded coplanar waveguide transmission line structure with rejection characteristic by coating the PSE solution as a sensed-gas material. The transmission coefficient, S21, was changed depending on the dielectric properties of the PSE change due to various concentrations of gas targeted in a range of 50 to 1000 ppm (50 ppm, 200 ppm, 500 ppm, 1000 ppm) under a static system in a closed chamber at room temperature. The extracted results of differential transmission coefficient change, S21, from four samples of ammonia concentration can be separated impressively. To confirm the selectivity performance of ammonia gas, three interference gases, e.g. acetone, ethanol and methanol, were investigated. The measured results show that the proposed sensor can discriminate ammonia gas from three interference gases over the entire concentration range in only three minutes. Moreover, comparing with conventional sensing material in microwave regime (PEDOT:PSS and carbon nanotube) [2], our sensor with PSE coating is it has many advantages, such as low cost, low profile in preparation, chemical stability and less effect with water as ambient humidity increases. The PSE-coated sensor in this paper is suitable for a high-performance selectivity in ammonia gas sensing applications in industrial processes and agricultural products. |
キーワード |
(和) |
Poly (styrene-co-maleic acid) partial isobutyl/methyl mixed ester / PS / microwave gas sensor / PSE-coated / interdigital resonator / ammonia gas sensor / / |
(英) |
Poly (styrene-co-maleic acid) partial isobutyl/methyl mixed ester / PS / microwave gas sensor / PSE-coated / interdigital resonator / ammonia gas sensor / / |
文献情報 |
信学技報 |
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発行日 |
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ISSN |
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PDFダウンロード |
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研究会情報 |
研究会 |
MW |
開催期間 |
2019-06-26 - 2019-06-28 |
開催地(和) |
RUS(タイ・バンコク) |
開催地(英) |
RUS, Bangkok, Thailand |
テーマ(和) |
2019 Thailand-Japan MicroWave (TJMW2019) |
テーマ(英) |
2019 Thailand-Japan MicroWave (TJMW2019) |
講演論文情報の詳細 |
申込み研究会 |
MW |
会議コード |
2019-06-MW |
本文の言語 |
英語 |
タイトル(和) |
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サブタイトル(和) |
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タイトル(英) |
PSE-Coated Interdigital Resonator for Selective Detection of Ammonia Gas Sensor |
サブタイトル(英) |
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キーワード(1)(和/英) |
Poly (styrene-co-maleic acid) partial isobutyl/methyl mixed ester / Poly (styrene-co-maleic acid) partial isobutyl/methyl mixed ester |
キーワード(2)(和/英) |
PS / PS |
キーワード(3)(和/英) |
microwave gas sensor / microwave gas sensor |
キーワード(4)(和/英) |
PSE-coated / PSE-coated |
キーワード(5)(和/英) |
interdigital resonator / interdigital resonator |
キーワード(6)(和/英) |
ammonia gas sensor / ammonia gas sensor |
キーワード(7)(和/英) |
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キーワード(8)(和/英) |
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第1著者 氏名(和/英/ヨミ) |
Warunee Krudpun / Warunee Krudpun / |
第1著者 所属(和/英) |
King Mongkut?s University of Technology North Bangkok (略称: KMUTNB)
King Mongkut?s University of Technology North Bangkok (略称: KMUTNB) |
第2著者 氏名(和/英/ヨミ) |
Nonchanutt Chudpooti / Nonchanutt Chudpooti / |
第2著者 所属(和/英) |
King Mongkut?s University of Technology North Bangkok (略称: KMUTNB)
King Mongkut?s University of Technology North Bangkok (略称: KMUTNB) |
第3著者 氏名(和/英/ヨミ) |
Panida Lorwongthagool / Panida Lorwongthagool / |
第3著者 所属(和/英) |
), Rajamangala University of Technology Suvarnabhumi, Nonthaburi (略称: RUS)
), Rajamangala University of Technology Suvarnabhumi, Nonthaburi (略称: RUS) |
第4著者 氏名(和/英/ヨミ) |
Somporn Seewattanapon / Somporn Seewattanapon / |
第4著者 所属(和/英) |
), Rajamangala University of Technology Suvarnabhumi, Nonthaburi (略称: RUS)
), Rajamangala University of Technology Suvarnabhumi, Nonthaburi (略称: RUS) |
第5著者 氏名(和/英/ヨミ) |
Prayoot Akkaraekthalin / Prayoot Akkaraekthalin / |
第5著者 所属(和/英) |
King Mongkut?s University of Technology North Bangkok (略称: KMUTNB)
King Mongkut?s University of Technology North Bangkok (略称: KMUTNB) |
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