| Popis: |
A very low cost multispectral detector is developed and bench marked with full spectrometer measurements by measuring internal quality parameters of kiwis. The multispectator detector uses self-referenced reflectance to reduce measurement variations. It is demonstrated that even when using only twelve wavelengths, only a small loss of accuracy occurs with respect to a spectrometer in measurements of solid soluble content and dry matter. Further, using classification, similar accuracy is achieved in placing the fruits in bins based on their quality parameters. The measurements are rapid (less than 5 seconds), non-destructive and the system costs less than $50. |
