Invention Grant
- Patent Title: Determination of basis weight of a material web using a microwave sensor, whereby the distance between the material web and the surfaces of the microwave sensor is being adjusted to a constant value by air cushions
- Patent Title (中): 使用微波传感器确定材料幅材的基重，由此材料纤维网和微波传感器表面之间的距离通过气垫调整到恒定值
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Application No.: US13917844Application Date: 2013-06-14
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Publication No.: US09279713B2Publication Date: 2016-03-08
- Inventor: Thomas Ischdonat , Ingolf Cedra , Oliver Kaufmann
- Applicant: Voith Patent GmbH
- Applicant Address: DE Heidenheim
- Assignee: Voith Patent GmbH
- Current Assignee: Voith Patent GmbH
- Current Assignee Address: DE Heidenheim
- Agency: Taylor IP, P.C.
- Priority: DE102010063232 20101216
- Main IPC: G01G17/02
- IPC: G01G17/02 ; G01N22/00 ; G01G9/00 ; G01N33/34
Abstract:
A device for determining the weight per unit area of a moving material web, in particular a fibrous material web includes at least one microwave sensor that has an element for coupling the microwaves and a reference element. The coupling element and the reference element are located at a distance from one another in such a way that the material web can be moved therebetween. At least one microwave sensor element, the coupling element and/or the reference element can be moved such that the distances between the material web and the elements can be adjusted for or during the measurement of the moving material web.
Public/Granted literature
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