JP6209273B2 - 分光計の強度逸脱について補正する方法及び装置 - Google Patents
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- G01N21/25—Colour; Spectral properties, i.e. comparison of effect of material on the light at two or more different wavelengths or wavelength bands
- G01N21/31—Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry
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- G01J—MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
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Description
B(k)=α+β・k+γ・k2
a・(D/Dnom−1)=1/Q−1
ここで、公称経路長からの逸脱は、逆数係数1/Q(以下を参照されたい)によって表され、且つ、aは、無次元定数である。実際に、Qは、次式として結果的に表現されうる強度補正係数を表している。
Q=1/(a・(D/Dnom−1)+1)
Claims (16)
- 試料(610)の経路長逸脱を判定する方法において、
前記試料(610)を複数の波数における電磁放射に曝露させるステップ(710)と、
前記複数の波数における前記試料(610)中における電磁吸収を決定するステップ(720)と、
吸収帯域の第1吸収レベルと関連付けられた第1波数及び前記吸収帯域の第2吸収レベルと関連付けられた第2波数を決定するステップであって、前記第2波数は、前記第1波数とは異なっている、ステップ(750)と、
前記第1波数と前記第2波数との間の差(D)を決定するステップ(760)と、
前記決定された差(D)に基づいて前記経路長逸脱(d)を判定するステップと、
を有することを特徴とする方法。 - 請求項1に記載の方法において、前記電磁放射は、赤外放射であることを特徴とする方法。
- 請求項1又は2に記載の方法において、前記吸収は、フーリエ変換分光法によって決定されることを特徴とする方法。
- 請求項1乃至3の何れか1項に記載の方法において、前記第1及び第2吸収レベルは、同一であることを特徴とする方法。
- 請求項1乃至4の何れか1項に記載の方法において、前記第1及び第2波数は、水の電磁放射吸収帯域のスロープ上の位置に対応していることを特徴とする方法。
- 請求項1乃至5の何れか1項に記載の方法において、第3吸収レベルと関連付けられた少なくとも第3波数及び第4吸収レベルと関連付けられた第4波数を決定することにより、バックグラウンドスペクトルを推定するステップを更に有することを特徴とする方法。
- 請求項6に記載の方法において、前記推定ステップは、前記決定された少なくとも第3及び第4波数及び第3及び第4吸収レベルを使用し、前記バックグラウンドスペクトルを次数Nの多項式として表現するステップを有することを特徴とする方法。
- 請求項7に記載の方法において、前記多項式の次数Nは、2であることを特徴とする方法。
- 請求項1乃至8の何れか1項に記載の方法において、前記経路長逸脱(d)を判定する前記ステップは、前記経路長逸脱(d)と前記差(D)との間に線形の関係を仮定することにより、実行されることを特徴とする方法。
- 請求項1乃至9の何れか1項に記載の方法において、前記判定された経路長逸脱(d)は、前記試料中の空気を検出するべく使用されることを特徴とする方法。
- 請求項1乃至9のいずれか一項に記載の方法において、
前記判定された経路長逸脱は、前記決定された差(D)を差の公称値(D nom )によって除算して得られた商であり、且つ、
前記方法は、経路長の変化について補正するべく強度スペクトルに適用するための前記商に依存した強度補正係数(Q)を決定する更なるステップを有することを特徴とする方法。 - 試料(610)の経路長逸脱を判定する装置において、
前記試料(610)を複数の波数における電磁放射に曝露させるように構成された放射装置(200)と、
計測装置(500)であって、
前記複数の波数における前記試料(610)中における電磁吸収を決定し、
吸収帯域の第1吸収レベルと関連付けられた第1波数及び前記吸収帯域の第2吸収レベルと関連付けられた第2波数を決定し、ここで、前記第2波数は、前記第1波数とは異なっており、
前記第1波数と前記第2波数との間の差を決定し、且つ、
前記決定された差に基づいて前記経路長逸脱を判定する、
ように構成された計測装置(500)と、
を有することを特徴とする装置。 - 請求項12に記載の装置において、前記電磁放射は、赤外放射であることを特徴とする装置。
- 請求項12又は13に記載の装置において、前記吸収は、フーリエ変換分光法によって決定されることを特徴とする装置。
- 請求項12乃至14の何れか1項に記載の装置において、前記第1及び第2吸収レベルは、同一であることを特徴とする装置。
- 請求項12乃至15の何れか1項に記載の装置において、前記第1及び第2波数は、水の電磁放射吸収帯域のスロープ上の位置に対応していることを特徴とする装置。
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PCT/EP2013/061490 WO2014194935A1 (en) | 2013-06-04 | 2013-06-04 | Method of and apparatus for correcting for intensity deviations in a spectrometer |
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US11226346B2 (en) | 2016-07-21 | 2022-01-18 | Siemens Healthcare Diagnostics Inc. | Eliminating source lamp intensity drift effect using reference measurement between cuvettes |
US9829378B1 (en) * | 2016-10-13 | 2017-11-28 | Bentley Instruments, Inc. | Determining a size of cell of a transmission spectroscopy device |
US11774353B2 (en) * | 2018-10-30 | 2023-10-03 | The Government Of The United States Of America, As Represented By The Secretary Of The Navy | Methods and apparatuses for biomimetic standoff detection of hazardous chemicals |
CN109444062B (zh) * | 2018-11-29 | 2021-07-13 | 西安交通大学 | 一种无人机载高排典型污染物差分吸收光谱检测方法 |
AU2020338951A1 (en) | 2019-08-28 | 2021-12-16 | Foss Analytical A/S | Method of correcting for an amplitude change in a spectrometer |
US20230011975A1 (en) * | 2020-01-16 | 2023-01-12 | Foss Analytical A/S | Method of determining an optical pathlength through a cuvette |
CN115011739B (zh) * | 2022-08-03 | 2022-11-01 | 南京邦康生物技术有限公司 | 一种益生菌的生产控制方法与系统 |
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WO1999015880A1 (en) * | 1997-09-25 | 1999-04-01 | Bayer Corporation | Spectroscopic analysis of samples with turbidity and high absorbance |
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JP2001059772A (ja) * | 1999-08-25 | 2001-03-06 | Jasco Corp | ベースライン補正方法 |
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AR096465A1 (es) | 2015-12-30 |
EP3004839A1 (en) | 2016-04-13 |
NZ713752A (en) | 2019-03-29 |
US9874515B2 (en) | 2018-01-23 |
RU2624337C1 (ru) | 2017-07-03 |
EP3004839B1 (en) | 2020-02-12 |
AU2013391754A1 (en) | 2015-11-12 |
MX356023B (es) | 2018-05-09 |
WO2014194935A1 (en) | 2014-12-11 |
MX2015016602A (es) | 2016-08-12 |
PL3004839T3 (pl) | 2020-06-01 |
CA2910115A1 (en) | 2014-12-11 |
PT3004839T (pt) | 2020-03-27 |
HUE048093T2 (hu) | 2020-05-28 |
AU2013391754B2 (en) | 2017-08-17 |
CN105164513A (zh) | 2015-12-16 |
US20160123870A1 (en) | 2016-05-05 |
BR112015030064A2 (pt) | 2017-07-25 |
BR112015030064B1 (pt) | 2020-10-20 |
CN105164513B (zh) | 2018-02-02 |
CA2910115C (en) | 2020-08-18 |
ES2774227T3 (es) | 2020-07-17 |
DK3004839T3 (da) | 2020-03-23 |
JP2016521848A (ja) | 2016-07-25 |
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