GAS ANALYZER, PROGRAM FOR GAS ANALYZER, AND GAS ANALYSIS METHOD

• Main Author: TAKAHASHI MOTONOBU
• Format: Patent
• Language: English; Japanese
• Published: 07.02.2019
• Subjects: INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIRCHEMICAL OR PHYSICAL PROPERTIES; MEASURING; PHYSICS; TESTING

To enable analyses to be carried out using accurate calibration curve data in which the influences of a measurement object component included in a sample gas are corrected, without the need for correcting the influences of components not include in the sample gas.SOLUTION: The present invention comprises: a calibration curve data storage unit 21 that stores N kinds of calibration curve data, created in advance for N kinds of measurement object components, in which the influences on the concentration of each measurement object component of other N-1 kinds of measurement object components are corrected; and a concentration calculation unit 22 for calculating the concentrations of measurement object components using the N kinds of calibration curve data. When there is a component less than or equal to a threshold, whose concentration calculated by the concentration calculation unit 22 is less than or equal to a prescribed threshold, the concentration calculation unit 22 calculates the concentration of a measurement object component except the components less than or equal to the threshold using calibration curve data in which the influences of the components less than or equal to the threshold are not corrected.SELECTED DRAWING: Figure 3 【課題】試料ガスに含まれない成分の影響を補正することなく、試料ガスに含まれる測定対象成分の影響を補正した精度の良い検量線データを用いて分析できるようにする。【解決手段】Ｎ種類の測定対象成分に対して予め作成されており、各測定対象成分の濃度に対する他のＮ−１種類の測定対象成分の影響を補正したＮ種類の検量線データを記憶している検量線データ記憶部２１と、Ｎ種類の検量線データを用いて測定対象成分の濃度を算出する濃度算出部２２とを具備し、濃度算出部２２により算出された濃度が所定の閾値以下の閾値以下成分がある場合に、濃度算出部２２が、閾値以下成分を除く測定対象成分の濃度を、閾値以下成分の影響を補正していない検量線データを用いて算出するようにした。【選択図】図３