A new technique of radiation thermometry using a consumer digital camcorder: Observations of red glow at Aso volcano, Japan

Takeshi Saito, Satoshi Sakai, Isao Iizawa, Eriko Suda, Kazuhiro Umetani, Katsuya Kaneko, Yoshitsugu Furukawa, Takahiro Ohkura

Research output: Contribution to journalArticle

12 Citations (Scopus)

Abstract

We newly developed a technique of radiation thermometry using a Sony's consumer digital camcorder. Our system is not only convenience and cost effective but with a better performance than previous infrared thermometers, particularly in the place like a crater of volcano where is abundant in gas. This is because our system uses the submicron wavelength band, in which radiation is less influenced by absorption of gas than in the thermal infrared wavelength (>3 μm). We carried out observations of red glow at Aso volcano and succeeded in measuring the temperature of about 800°C, which is much more acceptable than previously reported values of 200-400°C. When we measure the temperature of about 300-700°C and 600-900°C in the place where is abundant in gas, using the camcorder with the near-infrared and with the visible wavelength mode is better than the thermal infrared region, respectively. Copy right

Original languageEnglish
JournalEarth, Planets and Space
Volume57
Issue number12
Publication statusPublished - 2005
Externally publishedYes

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volcanoes
temperature measurement
Japan
volcano
luminescence
wavelength
radiation
gases
gas
wavelengths
thermometers
craters
crater
near infrared
temperature
costs
cost
thermometry
measuring

Keywords

  • Aso volcano
  • NightShot
  • Red glow
  • Submicron wavelength
  • Thermometer

ASJC Scopus subject areas

  • Earth and Planetary Sciences (miscellaneous)

Cite this

A new technique of radiation thermometry using a consumer digital camcorder : Observations of red glow at Aso volcano, Japan. / Saito, Takeshi; Sakai, Satoshi; Iizawa, Isao; Suda, Eriko; Umetani, Kazuhiro; Kaneko, Katsuya; Furukawa, Yoshitsugu; Ohkura, Takahiro.

In: Earth, Planets and Space, Vol. 57, No. 12, 2005.

Research output: Contribution to journalArticle

Saito, Takeshi ; Sakai, Satoshi ; Iizawa, Isao ; Suda, Eriko ; Umetani, Kazuhiro ; Kaneko, Katsuya ; Furukawa, Yoshitsugu ; Ohkura, Takahiro. / A new technique of radiation thermometry using a consumer digital camcorder : Observations of red glow at Aso volcano, Japan. In: Earth, Planets and Space. 2005 ; Vol. 57, No. 12.
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