Ultrasonic displacement sensor using digital signal processing detection
US7027355B2 · kind B2 · utility
21Cited by
15References
20Claims
0Family size
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Key dates
| Filing date | Jan 8, 2003 |
| Grant date | Apr 11, 2006 |
| Priority date | — |
| Expiry date | Jul 6, 2023 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02B20/40
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
An apparatus and method is provided for detecting motion or displacement of an object in a monitored zone. The apparatus is disposed between a load and a power source and comprises a transmitter for providing a pulsed signal within a monitored zone. The pulsed signal interacts with objects in the monitored zone and provides a return signal. A receiver receives echoes from a return signal of the pulsed record signal, and a microcontroller circuit processes the echoes. The processing involves extracting a kernel from the return signal and multiplying the kernel by the stored return signal.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.