Web tension measurement / web tension control

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Web tension measurement refers to the measurement of the material tension on moving webs. These can be paper, foil, textile, plastic and metal tapes as well as wires, cables or ropes. The materials run over rollers or rollers in the manufacturing and processing plants. By wrapping the rollers around the angle, a radial force is introduced in the direction of the bearing points. The forces that occur can be recorded in a force transducer by means of strain gauges that are connected to form a Wheatstone full measuring bridge . Compliance with process and material-dependent web tension is of decisive importance for the quality of processing and the end product. These measuring bridges are integrated into the bearing points and form the so-called force measuring bearing as a structural unit. Other structural designs such as saucer blocks or fully integrated measuring rollers offer a variety of solutions for mechanical engineering.

Web tension control refers to the regulation of web tension in the specific manufacturing processes. The measured web tension is fed as an electrical signal to a web tension controller, which compares the actual value with a predefined target value . From the control deviation is a control value formed of an electrical signal for controlling a brake or a drive is used.

literature

• E. Baumann: Electrical force measurement technology . VEB Verlag Technik, Berlin 1976