165833 ⎘
Photometry, e.g. photographic exposure meter by comparison with reference light or electric value provisionally void using electric radiation detectors; Ratio method, i.e. Im/Ir Computing a difference/sum ratio, i.e. (Im - Ir) / (Im + Ir)
LIGHT SENSING METHOD AND LIGHT SENSOR MODULE THEREOF
Sensor and system for plant canopy measurement
FIELD DEVICE AND DEGRADATION DIAGNOSIS METHOD