The Study Of The Frror Caused By Vibration In High-accuracy Laser Measurement Instrument For Thickness Of Plate

The high-accuracy laser measurement instrument for the thickness of plate is a key to realize the high-accuracy process in aluminum thin plate and the flat control. Measuring the transverse error of thickness of plate, it offers very comprehensive information for the production process of aluminum sheet products .The high accuracy laser measurement instrument for the thickness of plate becomes an important aspect in the flat control because of low-cost and high- accuracy. Vibration is one of the most important reasons that the accuracy is weakened. Because the high-accuracy laser measurement instrument is baroque and the vibration in production scene is complex, and the mathematic model is difficult to build.Based the test of vibration in the twin roll continuous casting scene and the analysis for vibration of the high-accuracy laser measurement instrument, the air spring vibration isolation system and the error equalization system based neural network are designed. The main research about the high-accuracy laser measurement instrument for the thickness of plate in this paper as following:1. After the status and reason of vibration in production scene was tested and analyzed, the policy of eliminating the error caused by vibration in high-accuracy laser measurement instrument is designed.2. The air spring vibration isolation system is designed for characteristic vibration in production scene. And the pivotal parameter of the air spring vibration isolation system is simulated and designed.3. The experimentation is designed for the high-accuracy laser measurement instrument, and the software is designed.4. The simulated experimentation of the error equalization system is designed. The data used gathered from the plant of the twin roll continuous casting in North China Aluminum Co. is designed .The experimentation has been completed in base of the error equalization system.