| 摘要 |
A density measuring system, including a container into which a gas is injected, provided with a heating element to which a variety of different voltages is applied; an equation storage device storing a density calculating equation that has, as independent variables, electrical signals obtained from the heating element when each of the plurality of different voltages is applied and has the density as a dependent variable; and a density calculating portion calculating a measured value for the density of the gas that is injected into the container, through substituting measured values for the electrical signals from the heating element into the independent variables of the density calculating equation. |
