Short range ultrasonic measurement
US10495740B2 · kind B2 · utility
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16References
13Claims
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Key dates
| Filing date | Aug 21, 2017 |
| Grant date | Dec 3, 2019 |
| Priority date | — |
| Expiry date | May 10, 2038 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01S2007/52014
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A system has an actuator with a first surface and a second surface, the first surface being offset a step dimension from the second surface. A sensor is configured to measure a distance between the sensor and both the first surface and the second surface via a signal received by the sensor after having reflected off the first surface or the second surface. The step dimension is greater than a minimum dimension, which is defined in view of a medium through which the actuator moves and a frequency of the signal.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.