2006 Volume 60 Issue 1 Pages 83-91
A newly developed on-line fiber orientation sensor was installed in a paper machine at Nichinan Mill, and its performance has been examined at a speed of580-630m/min. The accuracy of the measurement of the fiber orientation angle and orientation strength was quite satisfactory, when the data was compared to that obtained by conventional off-line SST and MOA measurements. An important factor that leads to stable and reliable data measurements is ensuring the uniform contact of the sensor-head with the surface of running paper. This was made possible by introducing a special air-driven mechanism to the sensor-head.
This sensor system was found to be capable of measuring basis weight and moisture content of the paper while operating as a fiber orientation sensor. The results of these extra measurements are also reported.
