| タイトル |
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ja
一般用デジタルカメラを利用した簡易SO2カメラの製作
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| 作成者 |
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ja
寺田, 暁彦
en
TERADA, Akihiko
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ja
江尻, 省
en
EJIRI, Mitsumu
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ja
中村, 卓司
en
NAKAMURA, Takuji
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| アクセス権 |
open access |
| 主題 |
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Other
en
SO2 camera
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Other
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discharge rate
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Other
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plume
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Other
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Sakurajima volcano
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NDC
453
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| 内容注記 |
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Abstract
en
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.
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| 日付 |
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| 言語 |
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| 資源タイプ |
journal article |
| 出版タイプ |
VoR |
| 資源識別子 |
HDL
http://hdl.handle.net/2115/67564
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| 関連 |
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isIdenticalTo
DOI
https://doi.org/10.18940/kazan.58.1_251
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| 収録誌情報 |
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ja
火山
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巻57
号4
開始ページ219
終了ページ225
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| ファイル |
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| コンテンツ更新日時 |
2023-07-26 |
