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公开(公告)号:US20230020601A1
公开(公告)日:2023-01-19
申请号:US17902337
申请日:2022-09-02
发明人: Shunsuke MIZUMI , Jose Carlos KUROKI RAMIREZ , Koji ISHIBASHI , Juichi KODERA , Satoshi KUMAGAI , Masaru SEKIHARA
摘要: This fin tip position measurement method comprises: a jig installation step for installing a jig having a flat measurement surface expanded in a circumferential direction and an axial direction to a tip of at least one among a plurality of seal fins that protrude in a radial direction with respect to an axial line, extend in the circumferential direction, and are arranged in a direction in which the axial line extends; a first measurement step for measuring a distance from the axial line to the measurement surface by scanning the measurement surface with a laser beam; and a first calculation step for calculating a distance from the axial line to the tip of the seal fin by adding a radial dimension of the jig to the distance to the measurement surface.