| 摘要 |
PROBLEM TO BE SOLVED: To reduce an error in implementing sum correction and improve performance of measurement of a heat release value of a natural gas.SOLUTION: Component concentration in a calibration gas at a first analysis and at a second analysis respectively is measured (S101). Component concentration in a sample gas before sum correction at the first analysis and at the second analysis respectively is measured (S102). A first order correction coefficient f1 is obtained from a sum of the component concentrations in the calibration gas at the first analysis and at the second analysis, and a sum of component concentrations before the sum correction at the first analysis and at the second analysis (S103). With the use of the obtained first order correction coefficient f1, the component concentrations in the sample gas before sum correction at the first analysis and at the second analysis respectively are corrected and made into component concentrations after the sum correction (S104). |
