OPTICAL ANALYZER, MACHINE LEARNING DEVICE USED FOR OPTICAL ANALYZER, AND METHOD THEREOF

• Main Author: ANDO YOSHITAKE
• Format: Patent
• Language: English; Japanese
• Published: 18.06.2020
• Subjects: COLORIMETRY; MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT,POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRA-RED,VISIBLE OR ULTRA-VIOLET LIGHT; MEASURING; PHYSICS; RADIATION PYROMETRY; TESTING

To correct the output of a detector used for an optical analyzer by using a plurality of light amounts with a simple configuration.SOLUTION: An optical analyzer 100 for correcting nonlinearity of an optical detector 4 that detects light and obtains an output value includes: a light source 1 for emitting light; a measurement cell 3 into which the light emitted from the light source 1 is input; the optical detector 4 for detecting light output from the measurement cell 3 to obtain an output value; a learning unit 51b for machine learning a model for correction for performing linear correction on the output value of the optical detector 4 by using the output value of the optical detector 4 before correction and the output value of the optical detector 4 in a linear region or a known concentration of a sample gas introduced into the measurement cell 3; and a storage unit 51c for storing the model for correction obtained by the learning unit 51b.SELECTED DRAWING: Figure 3 【課題】光学分析装置に用いられる検出器の出力補正を、複数の光量を用いて、かつ、簡単な構成で行う。【解決手段】光を検出して出力値を得る光検出器４の非線形性を補正する光学分析装置１００であって、光を照射する光源１と、光源１から照射された光が入力される測定セル３と、測定セル３から出力される光を検出して出力値を得る光検出器４と、光検出器４の補正前の出力値と、光検出器４の線形領域における出力値又は測定セル３に導入されたサンプルガスの既知濃度とを用いて、光検出器４の出力値を線形補正するための補正用モデルを機械学習する学習部５１ｂと、学習部５１ｂにより得られた補正用モデルを保存する保存部５１ｃとを備える。【選択図】図３