Title:
ROTARY OPERATION-TYPE INERTIA DETECTION DEVICE AND SURVEYING DEVICE
Document Type and Number:
WIPO Patent Application WO/2024/071001
Kind Code:
A1
Abstract:
The present invention comprises: an inner frame (3) that is provided with an inertia sensor unit (4) and is rotatably supported by an outer frame (2); a twin inertia sensor unit having two inertia detection sensors; a first encoder (12) that detects a rotation angle between the outer frame and the inner frame; and a second encoder (17) that detects a rotation angle between the inner frame and the twin inertia sensor unit. The signal emitted by the twin inertia sensor unit and the outputs of the first encoder and the second encoder are associated. The twin inertia sensor unit is continuously rotated. A horizontal rotation angle and a rotation angle with respect to the horizontal of the inner frame are calculated from a detection signal of the twin inertia sensor unit based on an angle of the second encoder. The inner frame is inversely rotated by at least 180° or by one full rotation. A horizontal rotation angle and a vertical angle with respect to the vertical of the outer frame are detected.
Inventors:
OHTOMO FUMIO (JP)
OSARAGI KAZUKI (JP)
MATSUMOTO HIDEYUKI (JP)
KUMAGAI KAORU (JP)
SHOJI NAOKI (JP)
OSARAGI KAZUKI (JP)
MATSUMOTO HIDEYUKI (JP)
KUMAGAI KAORU (JP)
SHOJI NAOKI (JP)
Application Number:
PCT/JP2023/034633
Publication Date:
April 04, 2024
Filing Date:
September 25, 2023
Export Citation:
Assignee:
TOPCON CORP (JP)
International Classes:
G01C9/06; G01B7/30; G01C15/00; G01C19/00
Domestic Patent References:
| WO2021152884A1 | 2021-08-05 |
Foreign References:
| JPH04142088A | 1992-05-15 | |||
| CN208998806U | 2019-06-18 | |||
| JP2021063761A | 2021-04-22 | |||
| JP2007155584A | 2007-06-21 |
Attorney, Agent or Firm:
MIYOSHI Shoji (JP)
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