APPARATUS FOR MEASURING THE THICKNESS OF A MOVING WEB
    2.
    发明公开
    APPARATUS FOR MEASURING THE THICKNESS OF A MOVING WEB 失效
    方法用于测量移动带材的厚度。

    公开(公告)号:EP0131039A1

    公开(公告)日:1985-01-16

    申请号:EP84900546.0

    申请日:1984-01-11

    CPC classification number: G01B13/06 G01B7/06

    Abstract: Dans un appareil de mesure d'une épaisseur, deux têtes légères de mesure (2, 3) sont montées par des paliers pneumatiques dans des logements de chaque côté de la bande (1). Les têtes de mesure sont pourvues d'ajutages spéciaux qui soufflent contre la surface et maintiennent une distance constante de 60-100 mum par rapport aux surfaces respectives du papier. L'épaisseur est obtenue en mesurant la distance entre les ajutages par l'intermédiaire d'une sonde de mesure électrique (13), et un dispositif (13') détecté par la sonde de mesure. Par la conception spéciale des ajutages (12, 12'), et par leur compression pneumatique (via 11) contre les surfaces, une grande précision (meilleure que 0,5 mum) peut êtrre obtenue, et ceci même si la position du papier est modifiée, le tout avec une rapidité considérable. Le temps d'indication pour une modification d'épaisseur d'environ 100 mum est d'environ 0,5 ms.

    APPARATUS FOR MEASURING THE THICKNESS OF A MOVING WEB
    3.
    发明授权
    APPARATUS FOR MEASURING THE THICKNESS OF A MOVING WEB 失效
    测量移动网页厚度的装置

    公开(公告)号:EP0131039B1

    公开(公告)日:1987-08-26

    申请号:EP84900546.7

    申请日:1984-01-11

    CPC classification number: G01B13/06 G01B7/06

    Abstract: Apparatus for measuring thickness, two light measuring heads (2, 3) being mounted by air bearings in housings on either side of the web (1). The measuring heads are provided with specially implemented nozzles blowing against the surface and maintaining a constant distance of 60-100 mum to the respective paper surfaces. The thickness is measured by the distance between the nozzles being measured via an electrical measuring probe (13) in one, and a means (13') sensed by the measuring probe. By the especial implementation of the nozzles (12, 12') and by their being pneumatically pressed (via 11) against the surfaces, high accuracy (better than 0.5 mum) can be achieved, and this is so even if the position of the paper is altered, rapidity also being considerable. The time to indication for a thickness alteration of about 100 mum is about 0.5 ms.

    METHOD OF MEASURING AND CONTROLLING ADHESION/RELEASE OF A PAPER WEB WHICH IS REMOVED BY A DOCTOR BLADE FROM A YANKEE CYLINDER AND A WEB TENSION GAUGE
    5.
    发明公开
    METHOD OF MEASURING AND CONTROLLING ADHESION/RELEASE OF A PAPER WEB WHICH IS REMOVED BY A DOCTOR BLADE FROM A YANKEE CYLINDER AND A WEB TENSION GAUGE 失效
    用于测量和控制所述附接/拆卸纸方式贯穿哪RAKEL SWORD FROM扬克式滚筒的拆卸和纸张力计。

    公开(公告)号:EP0648160A1

    公开(公告)日:1995-04-19

    申请号:EP92911741.0

    申请日:1992-04-29

    CPC classification number: D21G9/0036 D21H25/005 G01L5/08

    Abstract: According to the invention, the supply (11) of an adhesion and release agent respectively to the surface of a Yankee-cylinder (1) from which the paper web is removed with the aid of a doctor blade (5) is controlled as a function of a signal from a gauge (20) which measures web tension and which is located between the cylinder (1) and the device (7, 8, 9) by means of which the web is rolled-up. When the degree of crêping is constant, an increase or decrease in web tension indicates that adhesion has increased or decreased respectively, resulting in a change in the setting of the supply device (11, 12). The invention also relates to a suitable web tension gauge to this end.

    A NON-CONTACT WEB TENSION METER
    6.
    发明授权
    A NON-CONTACT WEB TENSION METER 失效
    非接触式网络张力仪

    公开(公告)号:EP0192697B1

    公开(公告)日:1988-09-28

    申请号:EP85904306.9

    申请日:1985-08-28

    CPC classification number: G01L5/08

    Abstract: 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.

    A NON-CONTACT WEB TENSION METER
    7.
    发明公开
    A NON-CONTACT WEB TENSION METER 失效
    无接触皮带张力计。

    公开(公告)号:EP0192697A1

    公开(公告)日:1986-09-03

    申请号:EP85904306.0

    申请日:1985-08-28

    IPC: G01L5

    CPC classification number: G01L5/08

    Abstract: Tensiomètre de bande sans contact, indiqué notamment pour la mesure de la tension de bandes en mouvement, par exemple de papier dans des machines à papier ou dans une enrouleuse. Le tensiomètre se base sur le principe consistant à envoyer de l'air sous pression à travers un passage (4) et un passage (11) à un espace ouvert vers l'extérieur (8) qui est entouré par une ouverture de mesure sous la forme d'une fente annulaire (9) couplée à une jauge de pression (via 5). Le papier peut défiler devant les ouvertures (8, 9) à quelques millimètres de distance de ces dernières. D'une manière surprenante, la pression mesurée est une fonction linéaire ou quasi-linéaire de la tension de la bande.

    APPARATUS FOR MEASURING THE THICKNESS OF A MOVING WEB
    9.
    发明申请
    APPARATUS FOR MEASURING THE THICKNESS OF A MOVING WEB 审中-公开
    测量移动网页厚度的装置

    公开(公告)号:WO1984002772A1

    公开(公告)日:1984-07-19

    申请号:PCT/SE1984000004

    申请日:1984-01-11

    CPC classification number: G01B13/06 G01B7/06

    Abstract: Apparatus for measuring thickness, two light measuring heads (2, 3) being mounted by air bearings in housings on either side of the web (1). The measuring heads are provided with specially implemented nozzles blowing against the surface and maintaining a constant distance of 60-100 mu m to the respective paper surfaces. The thickness is measured by the distance between the nozzles being measured via an electrical measuring probe (13) in one, and a means (13') sensed by the measuring probe. By the especial implementation of the nozzles (12, 12') and by their being pneumatically pressed (via 11) against the surfaces, high accuracy (better than 0.5 mu m) can be achieved, and this is so even if the position of the paper is altered, rapidity also being considerable. The time to indication for a thickness alteration of about 100 mu m is about 0.5 ms.

    Abstract translation: 用于测量厚度的装置,两个测光头(2,3)由空气轴承安装在腹板(1)两侧的壳体中。 测量头设置有特殊实施的喷嘴,面向表面喷射,并保持与各个纸张表面的距离为60-100微米。 厚度通过测量的喷嘴之间的距离通过一个测量探头(13)和由测量探头检测的装置(13')之间的距离来测量。 通过喷嘴(12,12')的特别实现,并且通过气动地(通过11)压在表面上,可以实现高精度(优于0.5μm),并且即使在 纸张被改变,速度也相当可观。 指示厚度大约为100微米的时间约为0.5毫秒。

Patent Agency Ranking