Abstract: A method of detecting streaks in a web of, for example, moving paper which may be moisture, basis weight or caliper. A cross-direction profile is sensed and a moving average computed and then using minimum thresholds for the variation of the streak value from the average and its width in profile data boxes, the streak is detected.

Abstract: A scanner for moving sheet materials such as a paper making machine provides the gauging heads which measure parameters such as basis weight and moisture entirely inside an enclosed tubular beam. Each gauging head is driven in a cross direction perpendicular to the moving sheet direction and includes a seal belt for dust and dirt protection by covering a slot in the beam, except where the gauging is located.

Abstract: A publication distribution system and, more specifically, a computer operated feedback control system for controlling a process such as a paper-making process includes an effective common data base to which Publisher and Subscriber means are connected. An actual Publisher and Subscriber data base allows for a once only subscription to link subscriber means to a selected publisher for transfer of only updated or changed data from the original. Thus, only changed data is transferred across a network and computational load is reduced significantly. In the specific context of the present invention, the Publisher may be a scanning sensor for basis weight of paper being manufactured by a paper-making machine and a Subscriber may be an actuator such as a headbox control unit.