Pressure measuring arrangement for fluid in conductor, having tubular pillow consisting of at least two separate pressure chambers with respectively associated membrane

摘要

The measuring arrangement includes a tubular pillow with two membranes and two pressure measuring elements inserted in the conductor. The tubular pillow (1) consists of at least two separate pressure chambers (6,7) with respectively one associated membrane (4, 5). The first membrane (4) is associated over a first aperture with a body cavity pressure (p1) in a measuring tube (2) leading to the body cavity. The second membrane (5) is associated over a second aperture with a rinsing pressure (p2) in a rinsing tube (3) used for introducing a rinsing fluid into the body cavity.