Method and device for controlling a production system for planar or strand-shaped bodies

A device for controlling a production system for a body that is planar or strand-shaped, the device comprising:

• a measurement region configured to accommodate the body:
• a transmission apparatus configured to irradiate the body with measurement radiation in the measurement region, wherein the measurement radiation is in a frequency range of one of gigahertz and terahertz and is configured to at least partially penetrate the body;
• a detection apparatus configured to detect the measurement radiation reflected by the body:
• an evaluation apparatus configured to use the measurement radiation detected by the detection apparatus to determine at least one of:
• (1) a refractive index of the body;
• and (2) an absorption of the measurement radiation at different locations on the body and at a plurality of time points while the body is conveyed through the measurement region;
• and
• a control apparatus configured to control at least one production parameter of a production system based on the at least one of:
• (1) the refractive index of the body;
• and (2) the absorption of the measurement radiation by the body,
• wherein the control apparatus is configured to control the at least one production parameter on a basis of at least one of:
• (1) a change in the refractive index;
• and (2) a change in the absorption over time and wherein the transmission apparatus is configured to radiate measurement radiation onto different points of the body, and
• wherein the evaluation apparatus is configured to generate a data trend using the at least one of the refractive index and the absorption determined at a plurality of time points during the conveying of the body through the measurement region, and wherein the production system is configured to be controlled using a detected change in the data trend over time.

A device for controlling a production system for a body that is planar or strand-shaped, the device comprising:

• a measurement region configured to accommodate the body;
• a transmission apparatus configured to irradiate the body with measurement radiation in the measurement region, wherein the measurement radiation is in a frequency range of one of gigahertz and terahertz and is configured to at least partially penetrate the body;
• a detection apparatus configured to detect the measurement radiation reflected by the body;
• an evaluation apparatus configured to use the measurement radiation detected by the detection apparatus to determine at least one of:
• (1) a refractive index of the body;
• and (2) an absorption of the measurement radiation at different locations on the body and at a plurality of time points while the body is conveyed through the measurement region;
• and
• a control apparatus configured to control at least one production parameter of a production system based on the at least one of:
• (1) the refractive index of the body;
• and (2) the absorption of the measurement radiation by the body,
• wherein the control apparatus is configured to control the at least one production parameter on a basis of at least one of:
• (1) a change in the refractive index;
• and (2) a change in the absorption over time and wherein the transmission apparatus is configured to radiate measurement radiation onto different points of the body, and
• wherein the evaluation apparatus is configured to generate a spatial value distribution using the at least one of the refractive index and the absorption determined at the different points of the body, and wherein the control apparatus is configured to control the production system using a detected spatial change in the spatial value distribution.