公开(公告)号：US20170122798A1

公开(公告)日：2017-05-04

申请号：US15129504

申请日：2015-04-10

Applicant: KOREA RESEARCH INSTITUTE OF STANDARDS AND SCIENCE

Inventor： Wan Sup Cheung ,  Kyung Min Baik

IPC: G01H9/00

CPC classification number: G01H9/00 ,  G01B9/02081 ,  G01B9/02083 ,  G01M7/025 ,  G01M7/027

Abstract: The present invention is aimed at providing measurement method for vibration displacement using state variation principle which achieves real time implementation through super high-speed DSP or FPGA as well as improves precision as much as picometer level and at the same time saves memory capacity compared to conventional invention.

公开(公告)号：US10337911B2

公开(公告)日：2019-07-02

申请号：US15129504

申请日：2015-04-10

Applicant: KOREA RESEARCH INSTITUTE OF STANDARDS AND SCIENCE

Inventor： Wan Sup Cheung ,  Kyung Min Baik

IPC: G01H9/00 ,  G01B9/02 ,  G01M7/02

Abstract: The present invention is aimed at providing measurement method for vibration displacement using state variation principle which achieves real time implementation through super high-speed DSP or FPGA as well as improves precision as much as picometer level and at the same time saves memory capacity compared to conventional invention.