半導体アンモニウムセンサーの較正と野外での検証

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タイトル別名
  • Calibration of the semiconductor NH3 sensor in vitro and verification in situ.
  • ハンドウタイ アンモニウム センサー ノ コウセイ ト ヤガイ デ ノ ケンショウ

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抄録

The properties of a semiconductor ammonia odor sensor were investigated in the laboratory and field. The laboratory results showed that the ammonia sensor was sensitive to water vapor pressure as well as ammonia concentration. In the field, ammonia concentration was calculated from the ammonia odor sensor values and the water vapor pressure. The calibrated ammonia concentration had a good relationship (R=0.80, n=57) with ammonia concentration by an acid-trap calorimetry method, where the ranges of ammonia concentration and water vapor pressure were -100 ppbv and 4-6 hpa, respectively. The ammonia odor sensor can measure concentrations of ammonia as 10 ppbv, which is the background level in agricultural fields, with an estimated error of ±9.72 ppbv.

収録刊行物

  • 大気環境学会誌

    大気環境学会誌 34 (4), 321-330, 1999

    公益社団法人 大気環境学会

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