The Design And Implementation Of Real-time Monitoring System For Detecting The Tangential Displacement Deviation In Rotating Parts

In order to improve the roller processing and control technology for reducing the overprint error in the color printing industry, the information of printer roller surface displacement is needed to be detected. The Real-time monitoring system for detecting the tangential displacement in rotating parts is designed to meet the requirement. This paper researches a non-contact system which can detect surface displacement deviation of motive printer roller in real-time. The system is used in R & D and manufacturing process of high-precision printing machinery and the measurement accuracy can reach±10μm.A virtual standard frame of reference established in the system for comparing with the motive state, getting the surface displacement deviation of motive printer roller in real-time and the calibration and analysis method of the measurement date are requested for describing the actual motive state of printer roller accurately. In this respect, this paper proposes a virtual calibration technology, dynamic tangential displacement measurement method and calculation method for system. The real-time monitoring system for detecting the tangential displacement in rotating parts is built on these bases. The design of all parts of the measurement system is completed, focusing on the phase comparison module and the calibration system.This paper also designed the software and hardware system of microprocessor MSP430 and PC-based measurement data processing algorithms. The examination prototype is developed and inspected, which can detect displacement deviation of motive printer roller in high accuracy.