Tank multi-level measurement using through the air millimeter wave radar
US11555732B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Apr 11, 2019 |
| Grant date | Jan 17, 2023 |
| Priority date | — |
| Expiry date | Jul 13, 2041 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01S13/34
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
Methods and systems for determining fluid levels in a tank comprise a mmWave Control unit configured to generate a millimeter wave chirp that ramps linearly from a starting frequency to a higher frequency within a specified time span. The mmWave Control unit transmits the chirp into the tank and receives one or more chirp reflections from the tank. The mmWave Control unit mixes the chirp with the chirp reflections to generate one or more intermediate frequency signals and processes the one or more intermediate frequency signals to derive one or more distances, each distance representing the distance from the top of the tank to one of the one or more fluids in the tank or an obstruction in the tank. A Telemetry Control unit automatically selects intermediate frequency signals having a signal strength above a predefined minimum or distances within a predefined distance window for further processing.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.