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Title: 一般用デジタルカメラを利用した簡易SO2カメラの製作
Authors: 橋本, 武志1 Browse this author →KAKEN DB
寺田, 暁彦2 Browse this author
江尻, 省3 Browse this author
中村, 卓司4 Browse this author
阿保, 真5 Browse this author
Authors(alt): HASHIMOTO, Takeshi1
TERADA, Akihiko2
EJIRI, Mitsumu3
ABO, Makoto5
Keywords: SO2 camera
discharge rate
Sakurajima volcano
Issue Date: 2012
Journal Title: 火山
Volume: 57
Issue: 4
Start Page: 219
End Page: 225
Publisher DOI: 10.18940/kazan.58.1_251
Abstract: We produced an SO2 imager of a low-cost version with the use of digital cameras of consumer use. General configuration and characteristics of the instrument are presented. Calibration with SO2 cells of known column concentration confirmed a comparable absorption coefficient to the device which is previously invented by Mori and Burton (2006). Although simultaneous shooting with two cameras is necessary to overcome the temporal change of an object because of somewhat long exposure time (5 to 10 sec) required, this device operates without external power or control PCs, and thus, is suitable for mobile use. We performed a field test of the instrument at Sakurajima volcano and confirmed its validity as an SO2 imager. However, further improvement of the optical system or a special care with UV scattering in front of a plume is necessary for quantitative applications in a field operation.
Type: article
Appears in Collections:理学院・理学研究院 (Graduate School of Science / Faculty of Science) > 雑誌発表論文等 (Peer-reviewed Journal Articles, etc)

Submitter: 橋本 武志

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