How to make gross guide point adjustments
Check out our newest feature in web guide controls for our web guides, which allows you to change the guide point without touching the sensor!
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web edge position
SCU5 Controller
Roll-2-Roll Technologies brings you the latest in web guiding technologies. We are now offering you SCU5 controller, so you can use our sensors in any kind of environments.
You Don't Need to Calibrate Our Web Edge Sensor
Are you tired of wasting time trying to calibrate your sensor on your web guiding system? Our sensor technology allows you to get away from the old calibration needy technology and makes installing and commissioning the edge sensor a simple operation. Check out how simple and easy it is to install our sensors for edge guiding, line guiding, contrast guiding and width measurement applications of any kind of web materials.
How to install an upgrade kit for web guides
Do you have an existing web guide with outdated sensors and control unit? We now have a solution with our upgrade kits featuring Roll-2-Roll® Web Sensors and Control Units for all electromechanical web guide systems, providing advanced edge and center guiding capabilities.
Benefits of Retrofit Kits for Web Guides
Learn about the many benefits a web guide retrofit kit has to offer. Whether you want to upgrade an existing machine or realize the benefit of the latest in web guiding technology on a smaller budget, retrofit kits are the answer.
Advanced Contrast Sensor Capabilities for Slitting Operations
Roll-2-Roll Technologies has released a new feature for it's web position sensors. This feature benefits the slitting converter operations. The advanced contrast sensing capabilities can detect the smallest changes in colors and markings. Stay tuned for more information about our advanced contrast sensor capabilities for slitting operations.
Fiber optic web edge sensor
A web edge sensor is disclosed. The web edge sensor has a light source directing light incident to an edge of a web. The edge of the web scatters the light and a sensor array that detects a first portion of the light scattered from the edge of the web and rejects a second portion to determine a position of the web edge.
Method for adaptive guiding of webs
A method of adaptive guiding of a web on a roller is disclosed. The method includes computing an output of a reference model, reading an output of a sensor that indicates a web position, determining a difference between the output of the reference model and the output of the sensor, and updating a set off controller parameters for the roller based on the difference.
Optimal Control of Web Guides Using a New Fiber Optic Edge Sensor
This paper discusses the development of a linear quadratic optimal control algorithm for web guides, and implementation of the control algorithm using web lateral position feedback from a new, experimental fiber optic sensor. The lateral dynamic model of the web and the measurement characteristics of the fiber optic sensor are conducive for a linear quadratic regulator design. The performance of the optimal control algorithm with web lateral position feedback from the fiber optic edge sensor is evaluated by conducting experiments on a web platform. Experiments were also conducted using the same controller but with an existing industrial infrared sensor for web lateral position measurement. Results from a series of comparative experiments indicate that the optimal control algorithm with feedback from the fiber optic sensor provides accurate lateral position regulation in the presence of disturbances, at various web transport speeds, and with web materials with different mechanical, physical and geometric properties. Based on the analysis of the web lateral dynamic model, recommendations for proper guide operation and selection of appropriate web transport conditions for good guiding performance are also discussed.
A Fiber Optic Sensor For Web Edge Detection
A laser based fiber-optic sensor was proposed in our previous work. The sensor developed was based on the principle of scattering of light and the sensitivity directional property of optical fibers. A beam of light is incident on a surface or an edge, the scattered light is received by a linear array of optical fibers. The lateral position of the web edge is determined based on the intensity of light received by each fiber in the fiber array. Static experiments were conducted to show the feasibility of the sensing strategy. In this work, the performance of the sensor is evaluated on an actual web handling platform. The analysis of static and dynamic (with non-zero web transport velocity) experimental data of the sensor under various realistic operating conditions and disturbances is conducted. A direct comparison of the fiber optic sensor and two existing industrial sensors is presented. The experimental data from the sensors are compared using different web materials and under different operating conditions. The new fiber optic sensor is more accurate and the measurements are less noisy. Further, the new sensor overcomes some of the key limitations of existing sensors. The problem of determining the actual position of the web when it is completely outside the sensing window or when it completely covers the sensing windows is resolved; the solution consists of a new configuration. The new configuration also improves the precision of the sensor.
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