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황정호(J. H. Hwang),노지훈(J. H. Roh),박기홍(Kihong Park) 한국정밀공학회 2006 한국정밀공학회 학술발표대회 논문집 Vol.2006 No.5월
Currently A demand of high precision workpiece is increasing in industry. At present, roundness measuring machine using Air bearing, coordinate measuring machine that are used from measurement station. but these machines will not be able to apply to In-line process. because of like these machine"s price are very expensive and measurement time is long. also, the complexity of conventional roundness measurement method based on fourier transform, it makes difficult to development analysis program. This work present new architecture of a Out-diameter measuring system for analysis of roundness of product. In this system, the influence of table motion errors is minimize by using two LVDT sensor and knife edge contact tip. We are produce a test machine and make an experimenter on Out-diameter of test bearing. The measurement result compared with roundness measuring machine.
황정호(J. H. Hwang),황태훈(T. H. Hwang),박기홍(K. Park) 대한기계학회 2008 대한기계학회 춘추학술대회 Vol.2008 No.5
The Ball Bush widely used in the automation field is linear motion bearing. Its plate and steel ball have a structure contacting the out diameter-housing part and inside diameter shaft respectively. Making the precise measurement of the plate thickness is important because the quality of Ball Bush is determined by the plate and steel ball. The plate thickness measurement by the Micrometer has a considerable errors in general. In order to do it, this paper proposes the AMS (Auto Measuring System) for the plate thickness measurement using LVDT(Linear Variable Differential Transformer) sensor instead of the Micrometer.