Monitoring system, control system, and actuation assembly of a paper machine, and a method of controlling

Abstract

A monitoring system comprising: (a) one or more sensors that monitor activity, amplitude, size, scale, duration of activity or a combination thereof of stock on a paper machine and (b) a control system in communication with the one or more sensors and one or more foil sections within the paper machine; wherein the control system measures the activity, amplitude, size, scale, duration of activity or a combination thereof of the stock and correlates the activity, amplitude, size, scale, duration of activity or a combination thereof to formation of fibers within the stock so that an angle, height, or both of the one or more foil sections are adjusted to change the activity, amplitude, size, scale, duration of activity or a combination thereof in the stock.

1 - 17 . (canceled) 
     
     
         18 . A method comprising:
 a. monitoring one or more regions of a paper machine to obtain current activity of the one or more regions;   b. comparing the current activity to a reference activity respectively to determine a difference in activity of the one or more regions; and   c. characterizing the difference in the activity as a primary activity, a secondary activity, or a tertiary activity.   
     
     
         19 - 20 . (canceled) 
     
     
         21 . The method of  claim 18 , comprising forming a primary activity line, a secondary activity line, a tertiary activity line, or a combination thereof. 
     
     
         22 . The method of  claim 21 , wherein one or more level devices create the primary activity line, the secondary activity line, a tertiary activity line, or a combination thereof. 
     
     
         23 . The method of  claim 18 , wherein the one or more regions of a paper machine are a first section, a second section, and a third section. 
     
     
         24 . The method of  claim 23 , wherein an amount of the primary activity of the first section is compared to the second section and/or the third section and an amount of the primary activity of the second section is compared to the third section. 
     
     
         25 . The method of  claim 18 , comprising predicting paper properties based upon a ratio of the primary activity to the secondary activity and/or the tertiary activity. 
     
     
         26 . The method of  claim 18 , comprising monitoring one or more of the one or more regions with a high angle sensor. 
     
     
         27 . The method of  claim 18 , comprising determining a change in formation desired or a formation error. 
     
     
         28 . The method of  claim 27 , comprising comparing the formation error to current paper machine settings. 
     
     
         29 . The method of  claim 18 , wherein the current activity includes turbulence of a wet end of the paper machine. 
     
     
         30 . The method of  claim 18 , wherein the monitoring is performed with a plurality of cameras located at a wet end of the paper machine. 
     
     
         31 . The method of  claim 30 , further comprising:
 analyzing the current activity in real time and graphically represented the current activity by peaks.   
     
     
         32 . A monitoring system comprising:
 a plurality of sensors located at one or more regions of a paper machine that monitor current activity of the one or more regions of the paper machine; and   a controller configured to:   compare the current activity to a reference activity to determine a difference in activity of the one or more regions; and   characterize the difference in activity of the one or more regions as a primary activity, a secondary activity, or a tertiary activity;   wherein the plurality of sensors include cameras that take still images, moving images, or both.   
     
     
         33 . The monitoring system or  claim 32 , wherein the current activity includes turbulence of a wet end of the paper machine. 
     
     
         34 . The monitoring system of  claim 32 , further comprising:
 one or more level devices that form a primary activity line, a secondary activity line, a tertiary activity line, or a combination thereof that forms the reference activity.   
     
     
         35 . The monitoring system of  claim 32 , wherein the controller predicts paper properties based upon a ratio of the primary activity to the secondary activity and/or the tertiary activity. 
     
     
         36 . The monitoring system of  claim 35 , wherein the controller determines a change in formation or a formation error based on the predicted paper properties. 
     
     
         37 . The monitoring system of  claim 36 , wherein the controller compares the formation error to current settings of the paper machine. 
     
     
         38 . The monitoring system of  claim 32 , wherein the cameras are high angle cameras that are angled downward towards the paper machine. 
     
     
         39 . The monitoring system of  claim 32 , wherein the controller analyzes the current activity in real time and graphically represents the current activity by peaks.