Optical tuning for plant detection
US10775299B2 · kind B2 · utility
0Cited by
8References
20Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Feb 21, 2019 |
| Grant date | Sep 15, 2020 |
| Priority date | — |
| Expiry date | Apr 1, 2039 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N2201/12746
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A Light Emitting Diode (LED) is added to a weed control system for calibrating the weed control system. A detector generates an electrical signal based on receiving light emitted by the LED. An electronically-tunable capacitor of a bandpass filter is adjusted based the signal received from the detector to adjust a center frequency of the bandpass filter so that light from an optical source, different from the LED, can more efficiently be detected by the weed control system.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.