G. Krippner, Gernot Schimmel, Hartwig Thim,
"LASCAN - A Laser Based Log-Measurement System"
: Proceedings of the XVI International Measurement Confederation World Congress, IMEKO 2000, 9-2000, ISBN: 3-901888-10-1, Proceedings of the XVI International Measurement Confederation World Congress, IMEKO 2000, Vol. 8, Sept. 25-28, 2000, Vienna, Austria, pp. 283-286.
Original Titel:
LASCAN - A Laser Based Log-Measurement System
Sprache des Titels:
Englisch
Original Buchtitel:
Proceedings of the XVI International Measurement Confederation World Congress, IMEKO 2000
Original Kurzfassung:
KEBA - Sawmill-Automation and the Microelectronics Institute of the Johannes Kepler University of Linz developed a new low-cost-system for measuring the diameter of a log with mm resolution. The system utilizes two laser beams forming an angle of 90?. Each of them is scanned by a rotating polygon mirror towards a retroreflector located in a distance of about 2 meters. Each retro-reflected laser beam is detected by a large-area photo diode mounted near the polygon mirror. An object (log) hit by the scanning laser beams produces for a certain time a shadow on the two reflectors and, hence, on the photo diodes which in turn generate high/low/high-signals. A signal processor converts these signals into the required geometrical data. The system called LASCAN is capable of measuring diameter and position of a log at high speed. The obtained data enable the sawmill to deliver to the customer the requested log with an optimized cut at a low prize.
Sprache der Kurzfassung:
Englisch
Erscheinungsmonat:
9
Erscheinungsjahr:
2000
Notiz zum Zitat:
Proceedings of the XVI International Measurement Confederation World Congress, IMEKO 2000, Vol. 8, Sept. 25-28, 2000, Vienna, Austria, pp. 283-286.