Title :
Metrological features of laser triangulation systems for melt level measurement during crystal growing
Abstract :
Triangulation technique for melt level measurement during the crystal growing is analysed. The features of level measurement of rotating melt are considered. The general procedure of light beam trajectory calculation is proposed that takes into account the arbitrary beam orientation and its reflection from the melt surface. Estimates of metrological characteristics of triangulation sensor depending on spatial orientation of the laser probing beams are given.
Keywords :
Calibration; Frequency estimation; Frequency measurement; Laser beams; Level measurement; Low-frequency noise; Optical reflection; Quantization; Sensor phenomena and characterization; Surface emitting lasers;
Conference_Titel :
Electronic Instrument Engineering Proceedings, 2004. APEIE 2004. 2004 7th International Conference on Actual Problems of
Conference_Location :
Novosibirsk, Russia
Print_ISBN :
0-7803-8476-8
