Abstract
A sensor is described for the continuous monitoring of sheet flutter in paper machines, employing a method in which the momentary transverse position of the measurement point on the travelling paper web is extracted from alterations in the time-of-flight of light pulses. Sub-millimetre resolution (0.2 mm with a signal bandwidth of 200 Hz) is attained by using a very high pulse repetition rate (1.3 MHz), high speed automatic gain control electronics and an analog time-to-amplitude converter. The sensor has a separate optomechanical sensing head at the end of a 20 m optical cable, enabling measurement in demanding industrial environments.
| Original language | English |
|---|---|
| Title of host publication | ISA Calgary Symposium 1989 |
| Publisher | ISA Services Inc |
| Pages | 305-317 |
| ISBN (Print) | 978-1-55617-202-1 |
| Publication status | Published - 1989 |
| MoE publication type | B3 Non-refereed article in conference proceedings |
| Event | ISA Calgary '89 Symposium - Calgary, Canada Duration: 3 Apr 1989 → 5 Apr 1989 |
Conference
| Conference | ISA Calgary '89 Symposium |
|---|---|
| Country/Territory | Canada |
| City | Calgary |
| Period | 3/04/89 → 5/04/89 |