| 摘要 |
<p>The present invention concerns a differential pressure meter for measuring differential pressure between two different points. As taught by the invention, the meter comprises two vertical, substantially transparent tubes (1, 2), said tubes being connected at the lower ends with the pressure measuring points, and a connecting member (3) connecting the tubes at their upper ends, said connecting member being provided with a duct (4) for introducing pressurized gas in the volume defined by the upper ends of the tubes and the connecting member.</p> |
