DEVELOPMENT AND PRODUCTION OF MULTI-PARAMETER MEASUREMENT DEVICE FOR FEATHER PIECES

Abstract

The correct measurement of feather parameters is a key issue for guaranteeing the production quality of badminton feather pieces. However, manual detection remains the main parameter measurement method used today. Therefore, this study proposed a design principle and measurement method, established the basic structure of a single-camera multi-parameter measurement system. First, on the basis of the convex lens imaging principle, images of feather pieces inside a mirror were collected at different angles with the proposed measurement acquisition device. The formulas for measuring curvature, camber, width, and thickness were also derived. Second, the relationship between camber and depth of field was analyzed. The analysis indicated that the entire feather piece with different levels of camber may be set within the range of depth of field to ensure that the camera obtains clear images. Finally, the measured values were compared with the manual measurement results obtained with a vernier caliper. The curvature, camber, thickness, and width of feather pieces can be measured with the proposed single camera device according to the practical operation results. The results of this study can serve as a reference in increasing the yield and quality of badminton feather pieces and reducing device cost and subjective human errors. Keywords: Feather digital image, planar mirror, curvature and camber, parameter measurement