Level-measuring circuit of a laser tilt meter
US6988319B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Jun 10, 2004 |
| Grant date | Jan 24, 2006 |
| Priority date | — |
| Expiry date | Jun 10, 2024 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01C2009/182
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A signal sampling circuit of a tilt sensor, suitable to be used in a tilt sensor, is described. The signal sampling circuit has a signal-generating module, a sample and hold module, and a differential module. The signal-generating module regularly generates a plurality of level-measuring signals at equally timed intervals and unidirectionally and alternately sends them to the first input pin and the second input pin of the tilt sensor, respectively. Then, the tilt sensor sequentially outputs the corresponding first and second output signals. The sample and hold module alternately samples and holds the first and the second output signals and outputs the first and the second sampling signals, respectively. The differential module receives and differentiates the first and the second sampling signals and outputs a level-estimating-result signal to a micro-controller unit to derive the tilt information of one direction.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.