Presentation 2022-08-18
A Test of a System for Monitoring the Concentration of Nitrate Ion in Plants by Laser-Induced Fluorescence Lifetime Measurement
Seiya Okazaki, Mayu Mori, Tomohisa Takaya,
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Abstract(in Japanese) (See Japanese page)
Abstract(in English) The nondestructive monitoring of the crop growth is effective for the succession of the agricultural knowledge accumulated to date and the measure against the unusual weather. In this study, we report the results of the estimation of nitrate ion concentrations in komatsuna (Japanese mustard spinach) leaves from their autofluorescence lifetimes in the >640 nm region. The nitrate concentrations are estimated from the lifetimes with a coefficient of determination of 0.78 for komatsuna cultivated in summer. The sensitivity limit of the nitrate concentration for our apparatus is estimated to be around 3000 mg/L.
Keyword(in Japanese) (See Japanese page)
Keyword(in English) Fluorescence Lifetime / Picosecond Pulse Laser / Nitrate Ion Concentration / Linear Regression
Paper # ED2022-19
Date of Issue 2022-08-11 (ED)

Conference Information
Committee ED / IEE-BMS / IEE-MSS
Conference Date 2022/8/18(1days)
Place (in Japanese) (See Japanese page)
Place (in English) Kikai-Shinko-Kaikan Bldg. B3-2
Topics (in Japanese) (See Japanese page)
Topics (in English)
Chair Hiroki Fujishiro(Tokyo Univ. of Science) / 工藤 寛之(明治大学) / 佐々木 実(豊田工業大学)
Vice Chair Seiya Sakai(Hokkaido Univ.) / / 寒川 雅之(新潟大学)
Secretary Seiya Sakai(Saga Univ.) / (NTT) / 寒川 雅之(豊橋技術科学大学)
Assistant Masatoshi Koyama(Osaka Inst. of Tech.) / Yoshitugu Yamamoto(Mitsubishi Electric) / / 神田 健介(兵庫県立大学)

Paper Information
Registration To Technical Committee on Electron Devices / Technical Committee on Bio Micro Systems / Technical Committee on Micromachine and Sensor System
Language JPN
Title (in Japanese) (See Japanese page)
Sub Title (in Japanese) (See Japanese page)
Title (in English) A Test of a System for Monitoring the Concentration of Nitrate Ion in Plants by Laser-Induced Fluorescence Lifetime Measurement
Sub Title (in English)
Keyword(1) Fluorescence Lifetime
Keyword(2) Picosecond Pulse Laser
Keyword(3) Nitrate Ion Concentration
Keyword(4) Linear Regression
1st Author's Name Seiya Okazaki
1st Author's Affiliation Toyama Prefectural University(Toyama Pref. Univ.)
2nd Author's Name Mayu Mori
2nd Author's Affiliation Toyama Prefectural University(Toyama Pref. Univ.)
3rd Author's Name Tomohisa Takaya
3rd Author's Affiliation Toyama Prefectural University(Toyama Pref. Univ.)
Date 2022-08-18
Paper # ED2022-19
Volume (vol) vol.122
Number (no) ED-152
Page pp.pp.9-12(ED),
#Pages 4
Date of Issue 2022-08-11 (ED)