| 摘要 |
A meter for measuring the rate of flow of a fluid comprises an inlet and outlet for the fluid, a surface intermediate of said inlet and outlet over which the fluid will flow in passing from inlet to outlet, a second surface maintained at a different temperature to the first surface and being connected thereto by means of a thermal bridge and means for measuring the temperature of fluid flowing over the first surface, the second surface and at an intermediate point on the thermal bridge, so as to provide a measure of the thermal insulative effect of the boundary layer formed by the flow of fluid over the first surface and hence of the rate of flow of the fluid. |
