Title |
-
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
|
Creator |
-
-
-
ja
寺田, 暁彦
en
TERADA, Akihiko
-
-
ja
江尻, 省
en
EJIRI, Mitsumu
-
-
ja
中村, 卓司
en
NAKAMURA, Takuji
-
|
Accessrights |
open access |
Subject |
-
Other
en
SO2 camera
-
Other
en
discharge rate
-
Other
en
plume
-
Other
en
Sakurajima volcano
-
NDC
453
|
Description |
-
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.
|
Date |
|
Language |
|
Resource Type |
journal article |
Version Type |
VoR |
Identifier |
HDL
http://hdl.handle.net/2115/67564
|
Relation |
-
isIdenticalTo
DOI
https://doi.org/10.18940/kazan.58.1_251
|
Journal |
-
-
ja
火山
-
Volume Number57
Issue Number4
Page Start219
Page End225
|
File |
|
Oaidate |
2023-07-26 |