公开(公告)号：US20200173780A1

公开(公告)日：2020-06-04

申请号：US16638082

申请日：2018-08-16

Applicant: Agency for Science, Technology and Research

Inventor： Guoqiang Wu ,  Jifang Tao ,  Alex Yuandong Gu ,  Geng Li Chua

IPC: G01C19/5698

Abstract: Various embodiments may provide a gyroscope. The gyroscope may include a piezoelectric substrate, an excitation transducer configured to generate a surface acoustic wave, and a sensing transducer configured to receive the surface acoustic wave generated by the excitation transducer. The gyroscope may additionally include a mass dot array between the excitation transducer and the sensing transducer, the mass dot array configured to generate a stress on the piezoelectric substrate based on a rotation of said gyroscope upon the surface acoustic wave passing through the mass dot array. The gyroscope may also include a light source, and an optical detector configured to receive one or more light beams generated by the light source to determine the rotation of the gyroscope based on a property of the one or more light beams. The property of the one or more light beams may be variable based on the stress on the piezoelectric substrate.

公开(公告)号：US20190033075A1

公开(公告)日：2019-01-31

申请号：US16073165

申请日：2017-01-24

Applicant: Agency for Science, Technology and Research

Inventor： Guoqiang Wu ,  Sanchitha Nirodha Fernando ,  Alex Yuandong Gu ,  Geng Li Chua

IPC: G01C19/5762

Abstract: According to various embodiments, there is provided a gyroscope device including: an outer frame; and four cells arranged within the outer frame, each cell of the four cells including: a proof mass arranged at least substantially in a centre region of the cell; and four electrode frames, each electrode frame of the four electrode frames arranged at a corner region of the cell and coupled to a respective side of the proof mass.