Surface slope measuring device and measuring of identifying a surface slope thereof
US11175133B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Jun 25, 2019 |
| Grant date | Nov 16, 2021 |
| Priority date | — |
| Expiry date | May 15, 2040 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01C9/32
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A method for identifying a surface slope includes the following steps: A device body with a tilt angle relative to an absolute horizontal plane and associated with a gravity is placed. A plurality of gravity response signals respectively corresponding to a plurality of angles readouts upon sensing the tilt angle are generated. Each of the plurality of gravity response signals is compared with a reference signal one by one to obtain a respective deviation comparison signal. An optical signal having a parameter is emitted according to a magnitude of the respective deviation comparison signal, wherein the parameter and the magnitude have a mathematical relationship therebetween.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.