| 摘要 |
A device for determing the product of p0x <SIGN> for a gas, wherein <SIGN> is the ratio of the specific heat capacity of the gas at constant pressure and at constant volume, and p0 is the static pressure in the gas, includes a measuring cell (42) adapted to be filled with the gas for which the product of p0x <SIGN> is to be determined, means (34, 37, 38) for varying the volume of the measuring cell such that pressure variations arise in the gas in the measuring cell, means (41) for measuring at least one parameter dependent on the variation of volume, and means for calculating the product of p0x <SIGN> by means of the parameter measured by said measuring means. The device can be completed with a pressure gauge for measuring the static pressure p0, whereby <SIGN> can be determined. |
