Measuring Photosynthetically Active Radiation with a Multi-Channel Integrated Spectral Sensor
Walter D. Leon-Salas, Jegan Rajendran, Miguel Vizcardo, Mauricio Postigo-Málaga
Abstract
This paper presents a photosynthetically active radiation (PAR) sensor based on an 18-band spectral sensor chipset with integrated optical filters. PAR sensors are an important tool for farmers and the proposed solution offers a path to low- cost PAR sensors. A technique for correcting the optical spectral leakage in the spectral sensor chipset is proposed and is applied to measurements collected indoors and outdoors. Tests results show that the proposed sensor and leakage-correction technique outperform lab-grade commercially-available PAR sensors.
Topics & Concepts
ChipsetLeakage (economics)Computer scienceRemote sensingPhotosynthetically active radiationElectronic engineeringEnvironmental scienceEngineeringTelecommunicationsChipBotanyGeologyEconomicsPhotosynthesisMacroeconomicsBiologyGreenhouse Technology and Climate ControlLight effects on plantsRemote Sensing in Agriculture