| 摘要 |
PCT No. PCT/SE85/00319 Sec. 371 Date May 9, 1986 Sec. 102(e) Date May 9, 1986 PCT Filed Aug. 28, 1985 PCT Pub. No. WO86/01890 PCT Pub. Date Mar. 27, 1986.A web tension meter, particularly suited for measuring the tension in moving webs, e.g. paper in paper machines or a winding machine. The meter is based on the principle of supplying pressurized air through a passage (4) and a passage (11) to an outwardly open space (8) which is surrounded by a measuring opening in the form of an annular slot (9) coupled to a pressure gauge (via 5). The paper is allowed to pass in front of the openings (8, 9) at some millimeters distance therefrom. The measured pressure is quite surprisingly a linear, or near linear, function of the tension in the web. |
