Hydraulic system sensor
US9989442B2 · kind B2 · utility
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22Claims
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Key dates
| Filing date | Oct 2, 2014 |
| Grant date | Jun 5, 2018 |
| Priority date | — |
| Expiry date | Nov 26, 2034 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01L19/08
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A hydraulic system includes a hydraulic circuit and a sensor for sensing a characteristic of hydraulic fluid of the hydraulic circuit. An energy harvester is configured to harvest energy from the hydraulic circuit. A controller interfaces with the sensor and is powered at least in part by the energy harvester. Various types of sensors are employed, including pressure and temperature sensors. A battery may further be included for powering the controller in addition to the energy harvester.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.