New Voith sensors measure important paper parameters

Heidenheim, Germany - Voith has developed a new generation of sensors with regards to availability, reliability and maintenance handling. As the main components of the Quality Measurement System, the sensors measure the most important quality parameters of the paper being produced, such as basis weight, moisture, caliper and ash. The Quality Control System reduces as much as possible the variability in machine direction (MD) and cross direction (CD). This allows paper manufacturers to move quality targets in the most profitable operational zones – for example to maximize the moisture content of the paper.

Higher product quality due to modular and fully independent sensors with optimized housings and integrated temperature stabilization.

The sensors and components are designed to operate in challenging environments under harsh conditions of the paper mill. Special, high-temperature housing options are no longer needed. The new temperature-stabilized housings are designed for ambient temperatures up to 100° C / 212° F.

A distinctive feature of Voith’s control concept is the machine direction controls based on physical models of the paper machine. Voith’s supervisory controls replicate the physical behavior of the process. The controls manage even high-frequent process disturbances. They also effectively reduce the time for grade changes and therefore minimize production losses.

The new sensor slots have been optimized in their width from 13 cm to 7.5 cm, which leads to smaller and lighter sensor packages, allowing more sensors to be installed in the available machine space.

The heart of the new sensors is a processor board that provides precise and fast signal and data processing. Sensor features are easy expandable via firmware upgrades. Configurations and calibration parameters are stored inside the sensor and can be changed remotely. Furthermore, the new plug and play functionality reduces complexity in maintenance.

www.voith.com

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