Evaluation of response time in ball surface-acoustic-wave hydrogen sensor using digital quadrature detector

Takuji Abe; Naoya Iwata; Toshihiro Tsuji; Tsuyoshi Mihara; Shingo Akao; Kazuhiro Noguchi; Noritaka Nakaso; Dongyoun Sim; Yusuke Ebi; Takeshi Fukiura; Hidekazu Tanaka; Kazushi Yamanaka

doi:10.1143/JJAP.46.4726

Evaluation of response time in ball surface-acoustic-wave hydrogen sensor using digital quadrature detector

Takuji Abe, Naoya Iwata, Toshihiro Tsuji, Tsuyoshi Mihara, Shingo Akao, Kazuhiro Noguchi, Noritaka Nakaso, Dongyoun Sim, Yusuke Ebi, Takeshi Fukiura, Hidekazu Tanaka, Kazushi Yamanaka

ENG - Materials Processing

Research output: Contribution to journal › Article › peer-review

23 Citations (Scopus)

Abstract

Hydrogen leak detection sensors must have high sensitivity and a short response time of 1 s or less. A ball surface-acousticwave (SAW) hydrogen sensor has a high sensitivity and can detect hydrogen in a very wide concentration range of lOppm to 100%. Moreover, a fast response can be expected because of the very thin sensitive film used. In this study, we developed a digital quadrature detector (DQD) to measure responses of less than 1 s, and measure phases in 1 ms intervals with excellent sensitivity. We evaluated the response time of the ball SAW hydrogen sensor where the signal was averaged 256 times in 0.256 s using the DQD. As a result, the response time was found to be Is or less for 3.0 vol % hydrogen gas in nitrogen.

Original language	English
Pages (from-to)	4726-4728
Number of pages	3
Journal	Japanese Journal of Applied Physics, Part 1: Regular Papers and Short Notes and Review Papers
Volume	46
Issue number	7 B
DOIs	https://doi.org/10.1143/JJAP.46.4726
Publication status	Published - 2007 Jul 26

Keywords

Ball SAW device
Hydrogen sensor
Quadrature detector
Response time

ASJC Scopus subject areas

Engineering(all)
Physics and Astronomy(all)

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10.1143/JJAP.46.4726

Cite this

Abe, T., Iwata, N., Tsuji, T., Mihara, T., Akao, S., Noguchi, K., Nakaso, N., Sim, D., Ebi, Y., Fukiura, T., Tanaka, H., & Yamanaka, K. (2007). Evaluation of response time in ball surface-acoustic-wave hydrogen sensor using digital quadrature detector. Japanese Journal of Applied Physics, Part 1: Regular Papers and Short Notes and Review Papers, 46(7 B), 4726-4728. https://doi.org/10.1143/JJAP.46.4726

Evaluation of response time in ball surface-acoustic-wave hydrogen sensor using digital quadrature detector. / Abe, Takuji; Iwata, Naoya; Tsuji, Toshihiro et al.

In: Japanese Journal of Applied Physics, Part 1: Regular Papers and Short Notes and Review Papers, Vol. 46, No. 7 B, 26.07.2007, p. 4726-4728.

Research output: Contribution to journal › Article › peer-review

Abe, T, Iwata, N, Tsuji, T, Mihara, T, Akao, S, Noguchi, K, Nakaso, N, Sim, D, Ebi, Y, Fukiura, T, Tanaka, H & Yamanaka, K 2007, 'Evaluation of response time in ball surface-acoustic-wave hydrogen sensor using digital quadrature detector', Japanese Journal of Applied Physics, Part 1: Regular Papers and Short Notes and Review Papers, vol. 46, no. 7 B, pp. 4726-4728. https://doi.org/10.1143/JJAP.46.4726

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abstract = "Hydrogen leak detection sensors must have high sensitivity and a short response time of 1 s or less. A ball surface-acousticwave (SAW) hydrogen sensor has a high sensitivity and can detect hydrogen in a very wide concentration range of lOppm to 100%. Moreover, a fast response can be expected because of the very thin sensitive film used. In this study, we developed a digital quadrature detector (DQD) to measure responses of less than 1 s, and measure phases in 1 ms intervals with excellent sensitivity. We evaluated the response time of the ball SAW hydrogen sensor where the signal was averaged 256 times in 0.256 s using the DQD. As a result, the response time was found to be Is or less for 3.0 vol % hydrogen gas in nitrogen.",

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AU - Abe, Takuji

AU - Iwata, Naoya

AU - Tsuji, Toshihiro

AU - Mihara, Tsuyoshi

AU - Akao, Shingo

AU - Noguchi, Kazuhiro

AU - Nakaso, Noritaka

AU - Sim, Dongyoun

AU - Ebi, Yusuke

AU - Fukiura, Takeshi

AU - Tanaka, Hidekazu

AU - Yamanaka, Kazushi

PY - 2007/7/26

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N2 - Hydrogen leak detection sensors must have high sensitivity and a short response time of 1 s or less. A ball surface-acousticwave (SAW) hydrogen sensor has a high sensitivity and can detect hydrogen in a very wide concentration range of lOppm to 100%. Moreover, a fast response can be expected because of the very thin sensitive film used. In this study, we developed a digital quadrature detector (DQD) to measure responses of less than 1 s, and measure phases in 1 ms intervals with excellent sensitivity. We evaluated the response time of the ball SAW hydrogen sensor where the signal was averaged 256 times in 0.256 s using the DQD. As a result, the response time was found to be Is or less for 3.0 vol % hydrogen gas in nitrogen.

AB - Hydrogen leak detection sensors must have high sensitivity and a short response time of 1 s or less. A ball surface-acousticwave (SAW) hydrogen sensor has a high sensitivity and can detect hydrogen in a very wide concentration range of lOppm to 100%. Moreover, a fast response can be expected because of the very thin sensitive film used. In this study, we developed a digital quadrature detector (DQD) to measure responses of less than 1 s, and measure phases in 1 ms intervals with excellent sensitivity. We evaluated the response time of the ball SAW hydrogen sensor where the signal was averaged 256 times in 0.256 s using the DQD. As a result, the response time was found to be Is or less for 3.0 vol % hydrogen gas in nitrogen.

KW - Ball SAW device

KW - Hydrogen sensor

KW - Quadrature detector

KW - Response time

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Evaluation of response time in ball surface-acoustic-wave hydrogen sensor using digital quadrature detector

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Keywords

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