The Research Of Quartz Tube Wall Thickness Measuring System Based On CCD

Based on CCD measuring technology, we present in this paper a quartz tube wall thickness photoelectric comprehensive measuring system, which is applied to measure the thickness of quartz tube wall non-contacted automatically with a line CCD device.The system is composed of a semiconductor laser source, a main fine mechanic system and controller, a real-time controlling system with SCM and data processing system by PC. The line CCD in this instrument can measure the distance between the two laser beams which were reflected from the outside and inside surfaces of the quartz tube wall. The computer processes the data and we finally get the thickness data of the tube wall. This design is a simple and direct way to do the measurement. It takes the advantages of CCD device to carry out the non-contacted measurement with high speed and precision.Based on theoretical research and total design, the designs of optical system, hardware circuit and SCM control system are mainly discussed in this paper. The experiment has proved its practicability. Real measured data indicates that the system can be up to measuring tube wall thickness with precision of 0.01mm.