Wetness sensors, wetness monitoring system, and related methods
US11103388B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 2, 2018 |
| Grant date | Aug 31, 2021 |
| Priority date | — |
| Expiry date | Jul 13, 2039 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61F2013/424
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
An aspect of the invention is a liquid sensor having a galvanically energizable power source capable of activating a remotely detectable signal in response to liquid. In a preferred embodiment, a liquid sensor includes a plurality of electrodes, a circuit, and a transmitter thereon. The electrodes are coupled to generate electrical power when in contact with liquid. The circuit is electrically connected to the electrodes so as to be activated by the electrical power, detect an electrical parameter of the electrical power, and generate a plurality of data packets indicating a degree of wetness corresponding to the detected electrical parameter. The transmitter is electrically coupled to the circuit to receive the plurality of data packets and transmit representations of the plurality of data packets as electromagnetic signals. Other aspects include a liquid absorbent wetness sensor and a computer-based wetness monitoring system, and method of detecting liquid.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.