This invention pertains to 
processing continuous webs such as paper, film, composites, and the like, in dynamic continuous 
processing operations. More particularly, it relates to controlling tension in such continuous webs during the 
processing operation. Tension is controlled in a dancer 
control system by connecting a corresponding dancer roll to an 
actuator apparatus or the like, sensing variables such as position, tension, velocity, and acceleration parameters related to the web and the dancer roll, and providing 
active force commands, in response to the sensed variables, to cause translational movement, generally including a target acceleration, in the dancer roll to control tension disturbances in the web. In some applications of the invention, the dancer 
control system is used to attenuate tension disturbances. In other applications of the invention, the dancer 
control system is used to create tension disturbances.