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一般用デジタルカメラを利用した簡易SO2カメラの製作
| 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 | | NAKAMURA, Takuji4 | | ABO, Makoto5 |
| Keywords: | SO2 camera | | discharge rate | | plume | | 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 |
| URI: | http://hdl.handle.net/2115/67564 |
| 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)
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Submitter: 橋本 武志
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