Abstract:
To determine the percentage of moisture removed from a traveling material between first and second points along its direction of travel, the difference in basis weight at those two points is divided by the wet-end moisture weight per unit area. The wet-end moisture weight per unit area is obtained by multiplying the dryend basis weight by the dry-end percent moisture with the product being then added to the difference of the basis weights. In another embodiment, the wet-end moisture weight is obtained by use of two operational amplifiers, one of which operates as a multiplier providing an output proportional to the difference in the dry-end moisture weight and the dry-end basis weight. This output is then added to the wet-end basis weight to obtain the wet-end moisture weight, which is then divided into the difference of the basis weights as above.