Development of ball surface acoustic wave trace moisture analyzer using burst waveform undersampling circuit

2018 ◽  
Vol 89 (5) ◽  
pp. 055006 ◽  
Author(s):  
Toshihiro Tsuji ◽  
Toru Oizumi ◽  
Hideyuki Fukushi ◽  
Nobuo Takeda ◽  
Shingo Akao ◽  
...  
Keyword(s):  
Acoustic Wave ◽  
Surface Acoustic Wave ◽  
Trace Moisture ◽  
Ball Surface ◽  
Wave Trace

Background gas analysis with leaky attenuation in a trace moisture analyzer using a ball surface acoustic wave sensor

2019 ◽  
Vol 58 (SG) ◽  
pp. SGGB04 ◽  
Author(s):  
Kazushi Yamanaka ◽  
Shingo Akao ◽  
Nobuo Takeda ◽  
Toshihiro Tsuji ◽  
Toru Oizumi ◽  
...  
Keyword(s):  
Acoustic Wave ◽  
Surface Acoustic Wave ◽  
Gas Analysis ◽  
Trace Moisture ◽  
Acoustic Wave Sensor ◽  
Ball Surface ◽  
Background Gas

Highly sensitive trace moisture ball surface acoustic wave sensor using SiOxfilm

2014 ◽  
Vol 53 (7S) ◽  
pp. 07KD08 ◽  
Author(s):  
Satoshi Hagihara ◽  
Toshihiro Tsuji ◽  
Toru Oizumi ◽  
Nobuo Takeda ◽  
Shingo Akao ◽  
...  
Keyword(s):  
Acoustic Wave ◽  
Surface Acoustic Wave ◽  
Trace Moisture ◽  
Highly Sensitive ◽  
Acoustic Wave Sensor ◽  
Ball Surface

Development of ball surface acoustic wave gas chromatograph for environmental monitoring in spacecraft and its application on the ground

2022 ◽  
Author(s):  
Takamitsu Iwaya ◽  
Shingo Akao ◽  
Kazushi Yamanaka ◽  
Tatsuhiro Okano ◽  
Nobuo Takeda ◽  
...  
Keyword(s):  
Acoustic Wave ◽  
Surface Acoustic Wave ◽  
Stationary Phases ◽  
Micro Electro Mechanical System ◽  
Steel Plates ◽  
Gas Chromatograph ◽  
Site Analysis ◽  
Saw Sensor ◽  
Ball Surface ◽  
Brewing Process

Abstract For on-site analysis of surface materials on the moon, planets, and small bodies and for the monitoring of air quality in crewed spacecraft, we have developed a portable gas chromatograph (GC) equipped with a ball surface acoustic wave (SAW) sensor. In this study, we fabricated a 10 cm cube GC that implements the forward flush method using two metal micro-electro-mechanical-system (MEMS) columns coated with different stationary phases in microchannels fabricated by wet etching and diffusion bonding of stainless-steel plates. Using this GC, we succeeded in analyzing 10 kinds of gas within 10 min. In addition, for the application of the ball SAW GC on the ground, we also developed a palm-sized GC with a single metal capillary column and used it in the analysis of the headspace gas of sake. We showed that the ratio of peak areas differed among odorants depending on the brand and brewing process of sake.

Analysis of Ball Surface Acoustic Wave Sensor Response to Wide Variety of Gases Using Gas Chromatography

2007 ◽  
Vol 46 (7B) ◽  
pp. 4532-4536 ◽  
Author(s):  
Naoya Iwata ◽  
Takuji Abe ◽  
Toshihiro Tsuji ◽  
Tsuyoshi Mihara ◽  
Shingo Akao ◽  
...  
Keyword(s):  
Gas Chromatography ◽  
Acoustic Wave ◽  
Surface Acoustic Wave ◽  
Sensor Response ◽  
Acoustic Wave Sensor ◽  
Ball Surface

Temperature Compensation for Ball Surface Acoustic Wave Devices and Sensor Using Frequency Dispersion

2006 ◽  
Vol 45 (5B) ◽  
pp. 4500-4504 ◽  
Author(s):  
Takuya Nakatsukasa ◽  
Shingo Akao ◽  
Tsuneo Ohgi ◽  
Noritaka Nakaso ◽  
Takuji Abe ◽  
...  
Keyword(s):  
Acoustic Wave ◽  
Surface Acoustic Wave ◽  
Temperature Compensation ◽  
Frequency Dispersion ◽  
Ball Surface ◽  
Acoustic Wave Devices

Development of Microseparation Column for Ball Surface Acoustic Wave Gas Chromatograph

2008 ◽  
Vol 47 (5) ◽  
pp. 4086-4090 ◽  
Author(s):  
Shingo Akao ◽  
Naoya Iwata ◽  
Masanori Sakuma ◽  
Hidekazu Ohnishi ◽  
Kazuhiro Noguchi ◽  
...  
Keyword(s):  
Acoustic Wave ◽  
Surface Acoustic Wave ◽  
Gas Chromatograph ◽  
Ball Surface

Continuous Measurement of Multiple Gases Using Ball Surface Acoustic Wave Gas Chromatograph

2012 ◽  
Vol 51 (7S) ◽  
pp. 07GC22 ◽  
Author(s):  
Toshihiro Sakamoto ◽  
Shingo Akao ◽  
Takamitsu Iwaya ◽  
Toshihiro Tsuji ◽  
Noritaka Nakaso ◽  
...  
Keyword(s):  
Acoustic Wave ◽  
Surface Acoustic Wave ◽  
Continuous Measurement ◽  
Gas Chromatograph ◽  
Ball Surface

Development of Multiple-Gas Analysis Method Using the Ball Surface Acoustic Wave Sensor

2010 ◽  
Vol 49 (7) ◽  
pp. 07HD14 ◽  
Author(s):  
Yutaro Yamamoto ◽  
Shingo Akao ◽  
Hiroki Nagai ◽  
Toshihiro Sakamoto ◽  
Noritaka Nakaso ◽  
...  
Keyword(s):  
Acoustic Wave ◽  
Surface Acoustic Wave ◽  
Gas Analysis ◽  
Analysis Method ◽  
Acoustic Wave Sensor ◽  
Ball Surface
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