Title :
A calibration method of triangulation sensors for thickness measurement
Author :
Hattuniemi, Joni ; Makynen, Anssi
Author_Institution :
Meas. & Sensor Lab., Univ. of Oulu, Kajaani, Finland
Abstract :
In this study, an experimental setup for a noncontacting high speed thickness measurement of planar objects is constructed. A simple calibration procedure is introduced and performance of the measurement setup is characterized. The setup includes two industrial cameras and two stripe lasers installed on opposite sides of the planar object. For a demonstration and characterization of the system, a diffuse reflecting aluminum coated metal plate was measured. The results show that the calibration method depicted can be utilized for various materials in thickness measurement systems based on laser triangulation.
Keywords :
aluminium; calibration; high-speed optical techniques; image sensors; measurement by laser beam; optical sensors; thickness measurement; calibration method; diffuse reflecting aluminum coated metal plate; industrial camera; laser triangulation; noncontacting high speed measurement; planar object; stripe lasers; thickness measurement; triangulation sensor; Calibration; Goniometers; Optical films; Optical reflection; Optical refraction; Optical surface waves; Plasmons; Resonance; Rotation measurement; Thickness measurement; camera; laser; noncontacting measurement;
Conference_Titel :
Instrumentation and Measurement Technology Conference, 2009. I2MTC '09. IEEE
Conference_Location :
Singapore
Print_ISBN :
978-1-4244-3352-0
DOI :
10.1109/IMTC.2009.5168514
