Liquid information sensor and method of driving the same
US11696709B2 · kind B2 · utility
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1References
18Claims
0Family size
Assignee
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Key dates
| Filing date | Dec 4, 2019 |
| Grant date | Jul 11, 2023 |
| Priority date | — |
| Expiry date | Nov 25, 2041 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N2291/02863
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
The present invention relates to a liquid information sensor comprises at least more than one electrode set including a first electrode, and a second electrode which is disposed spaced apart from the first electrode and to which an alternating current signal is applied between the first electrode and the second electrode; and a ferroelectric layer including a first side in contact with the first electrode and the second electrode and a second side facing the first side and defining a receiving area for receiving the target liquid, and generating sound waves by physical vibration when the AC signal is applied.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.