Device and method for displacement measurement used in sensing device
US11940302B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 27, 2020 |
| Grant date | Mar 26, 2024 |
| Priority date | — |
| Expiry date | Nov 29, 2042 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01D5/2497
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A displacement measurement device for a sensing device. The sensing device includes a first displacement sensor. The displacement measurement device includes: a drive signal generating circuit configured to output a drive signal to the first displacement sensor; a first signal processing circuit configured to receive a signal from the first displacement sensor and output a first ADSO signal; and a computing device including a first timer. The first timer is configured to receive a CLK512 signal and the first ADSO signal, and time or count according to the CLK512 signal and the first ADSO signal; and the CLK512 signal is a square wave signal related to a period and phase of the drive signal.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.