METHOD FOR OPTIMISATION OF DETECTION WAVELENGTHS FOR MULTI-GAS DETECTION

摘要

Method for optimising the values of n detection wavelengths of an optical gas sensor capable of carrying out detection of n different gases, comprising the implementation of the following steps:
a) calculation of a value of a determinant of an absorptivity matrix ε whose coefficients represent the spectral absorptivity of each of the n gases at n detection wavelengths, step a) being repeated several times, each time modifying at least one of said n detection wavelengths and such that the values of said n detection wavelengths are comprised within a range of values for which the spectral absorptivity of at least one of the n gases is non-zero;b) determination of the values of said n detection wavelengths for which the value of the determinant of the absorptivity matrix ε corresponds to the maximum value amongst the set of previously calculated values.

主权项

1. A method for optimising the values of n detection wavelengths of an optical gas sensor capable of carrying out detection of n different gases, comprising the implementation of the following steps:
a) calculation of a value of a determinant of an absorptivity matrix ε whose coefficients represent the spectral absorptivity of each of the n gases at n detection wavelengths, step a) being repeated several times, each time modifying at least one of said n detection wavelengths and such that the values of said n detection wavelengths are comprised within a range of values for which the spectral absorptivity of at least one of the n gases is non-zero; b) determination of the values of said n detection wavelengths for which the value of the determinant of the absorptivity matrix ε corresponds to the maximum value amongst the set of values calculated in step a).