Sensor for determining a filling level
US9778090B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Jan 20, 2015 |
| Grant date | Oct 3, 2017 |
| Priority date | — |
| Expiry date | Jan 22, 2036 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01S17/08
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
The invention relates to a sensor for determining a filling level of a liquid fellable into a container, having a light transmitter for transmitting at least one light pulse; having a receiver for receiving at least one reflected back light pulse, wherein the light pulse is at least partly reflect able at a liquid surface; having a control and evaluation unit for controlling the sensor and for evaluating the received back light pulse; and having a coupling and decoupling unit for coupling the light pulse into a liquid jet which can be introduced into the container and for decoupling the back light pulse to the receiver, wherein the control and evaluation unit is configured for determining a time difference between a transmission of the light pulse and a reception of the back light pulse to calculate a distance between the coupling and decoupling unit and the liquid surface.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.