Thermal diffusivity measuring system, concentration of caloric component measuring system, and flow rate measuring system

A concentration of caloric component calculating equation generating system, comprising:

• a heater element heating each of a plurality of mixed gases;
• a measuring mechanism measuring at least one of a radiation coefficient or a value for thermal conductivity for each of the plurality of mixed gases when the heater element has produced heat at a plurality of heat producing temperatures;
• and
• a concentration of caloric component calculating equation generating portion generating a concentration of caloric component calculating equation, based on known values for caloric component densities for each of the plurality of mixed gases and on values for radiation coefficients and thermal conductivities measured at the plurality of heat producing temperatures, using at least one of the radiation coefficients or the thermal conductivities for the plurality of heat producing temperatures as independent variables and using the concentration of caloric component as a dependent variable.

A specific heat capacity calculating equation generating system, comprising:

• a heater element heating each of a plurality of mixed gases;
• a measuring mechanism measuring at least one of a radiation coefficient or a value for thermal conductivity for each of the plurality of mixed gases when the heater element has produced heat at a plurality of heat producing temperatures;
• and
• a specific heat capacity calculating equation generating portion generating a specific heat capacity calculating equation, based on known values for specific heat capacities divided by thermal conductivities for each of the plurality of mixed gases and on values for radiation coefficients and thermal conductivities measured at the plurality of heat producing temperatures, using at least one of the radiation coefficients or the thermal conductivities for the plurality of heat producing temperatures as independent variables and using the specific heat capacity divided by the thermal conductivity as a dependent variable.