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Non-Contact Encoders for Industrial Measurement
The advent of automation in industries has led to the increase in importance and use of measurement sensors in various industrial applications. The scope of automation is not only to support human operators in tasks that involve hard and dangerous physical work, but first of all to improve the quality and enhance the capability of the production system itself. To realise these requirements, sensors are used for measurements to control and manage processes more effectively but also quite accurately.
InnovationThe non-contact encoders from INTACTON, COVIDIS and OPTIPACT, both offer the possibility of non-contact length and speed measurements with the best precision and without any physical contact to the measurement surface. Multiple output features, simple mounting, flexible and slip free measurement, good environmental protection make the sensors standout in this segment. These sensors offer a consolidated option for multiple measurement requirements in a tough industrial environment through its simple but extraordinary measurement principle and features.
TechnologyThe measuring principle is based on a correlation method whereby the surface is observed by a camera. Displacement, direction and velocity are analyzed and calculated by comparison of the respective surface pictures. Higher accuracy in COVIDIS is obtained by a more complex spatial filtering and integration principle. Furthermore the determination of standstill and movement in x and y direction is possible. The installation is straight forward and easy. No further mechanical connections are required. Therefore the sensor provides low installation, service and maintenance costs.
ApplicationsThe unique features of INTACTON’s products make it a leading solution in many industries. The wide range of applications particularly includes the textile, cables, metal processing and printing industries. Additionally the sensors have also been used in AGV, material handling applications and wood processing, food and paper industries.
The determination of length and speed of hot, sticky or highly sensitive surfaces is often quite difficult. The commonly used shaft encoders with a measuring wheel are not suitable for these applications because of the risk of contamination and damage to the surface. Furthermore the accuracy of a mechanical sensor system is reduced by slippage, which can lead to significant measuring errors in practice. A possible application is cut-to-length control on hot and sticky surfaces. In addition, speed and process control of sensitive goods as they are common in food and textile industry can help to keep the wastage at a minimum level and reduce the production costs. To summarize, the optical sensors from the company INTACTON offer the possibility to realize a non-contact, slip-free process control with low maintenance and service costs.
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