Patent ID: 9745697
Date: 2017-08-29
CPC Classifications: B05C,B65H,D21F,D21G,G01B,G01G,G01N

Claim:
1. An apparatus for measuring a moving web, wherein the apparatus comprises a caliper measuring sensor arrangement, a mass measuring sensor arrangement, and a stabilizing arrangement; the stabilizing arrangement is configured to stabilize the web and comprising in an integrated manner at least a part of the mass measuring sensor arrangement and at least a part of the caliper measuring sensor arrangement, and the stabilizing arrangement being configured to withdraw gas from between the first surface of the web and a surface of the stabilizing arrangement; the caliper measuring sensor arrangement is configured to measure caliper of the web optically; and the mass measuring sensor arrangement comprises at least one microwave resonator sensor or at least one microwave transceiver sensor for measuring weight of the web on the basis of at least one the following: a basis weight of the web, a water weight of the web, a moisture content of the web, and a dry weight.