| Paper industry is an important industry closely related to people’s lives, paper products are people’s daily necessities.The steel dryer is one of the key equipment in the paper industry, and it is a machine that is closely related to the production of paper, which removes moisture from the paper to dry the paper and is critical in the production of paper.Steel dryer in the production and processing into a finished product, the steel dryer needs to be grinding out a high, that is, the middle of the steel dryer diameter and diameter difference between the diameter of the steel dryer, steel dryer in the high Is one of the parameters that affect the quality of the paper during the drying of the paper. If the height is too large, it will affect the quality of the paper. Therefore, it is necessary to measure the medium height of the steel cylinder.However, due to the measured size of the steel cylinder has a large size and inconvenient handling characteristics, so the installation of measuring instruments, positioning difficulties, resulting in low measurement efficiency, which is often the main constraints of large size measurement, it is imperative to design a set of online Measurement system, the current use of the contact measurement, easy to leave the surface of the dryer scratches, will damage the surface of the measured dryer, will affect the measurement accuracy.In this paper, a non - contact measurement system based on the laser triangular method is designed for the high error measurement in the dryer, which can realize the high error of the steel cylinder in the non - destructive online measurement. The system uses the laser displacement sensor of Keyence to drive the surface data of the steel cylinder by the motion control system, and then carries on the data processing and processing, and obtains the medium error measurement report.The main contents of this paper include the following parts:(1)Introduce the research background and significance of the subject;(2)According to the requirements of high measurement in the drying cylinder, a measuring system based on laser triangular method is proposed.(3)According to the system measurement program and measurement requirements, the system hardware and software part of the design;(4)On the basis of the above, the measurement experiment and the data processing and analysis are carried out. Finally, the measurement error of the system is analyzed and analyzed. |