公开(公告)号：US20230175844A1

公开(公告)日：2023-06-08

申请号：US17995754

申请日：2021-03-30

Applicant: TOPCON CORPORATION

Inventor： Naoki SHOJI ,  Fumio OTOMO

IPC: G01C9/02 ,  G01S17/08 ,  G01C15/00

CPC classification number: G01C9/02 ,  G01S17/08 ,  G01C15/008

Abstract: An inclination sensor that can accurately detect an inclination angle with respect to a horizontal direction while suppressing drift in output values from an acceleration sensor and a data acquisition device including the inclination sensor are described. The inclination sensor includes a gimbal mechanism that is rotatably supported around a first shaft and a second shaft, a first motor that rotates the first shaft, a second motor that rotates the second shaft, a first encoder that detects a rotation angle of the first shaft, a second encoder that detects a rotation angle of the second shaft, an acceleration sensor that is disposed in the gimbal mechanism, and a control unit that arithmetically determines the inclination angle with respect to the horizontal direction.