Measuring device
US10139224B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 18, 2016 |
| Grant date | Nov 27, 2018 |
| Priority date | — |
| Expiry date | Apr 18, 2037 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01C2009/066
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
The present invention provides a measuring device, which comprises a leveling unit, a measuring device main body provided on the leveling unit, a control unit, a first tilt angle measuring device for detecting a horizontality with high accuracy, and a second tilt angle measuring device for detecting a tilt angle in a wider range than a range of the first tilt angle measuring device and having a higher responsiveness than a responsiveness of the first tilt angle measuring device, wherein the control unit, the first tilt angle measuring device and the second tilt angle measuring device are provided in the measuring device main body and wherein the control unit drives the leveling unit based on a detection result of the second tilt angle measuring device, performs a rough leveling until a tilt angle detected by the second tilt angle measuring device reaches within a range in which the first tilt angle measuring device is capable of detecting and levels the measuring device main body horizontally based on a detection result of the first tilt angle measuring device.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.