Patent ID: 6334092
Filing Date: 2001-12-25
Classification: G01N

Abstract:
A measurement device for measuring an internal quality of a fruit or vegetable, which includes:conveying means for conveying the fruit or vegetable in a predetermined direction;light projecting means for projecting light having a predetermined frequency region toward the fruit or vegetable under conveyance; andlight receiving means for receiving said light having the predetermined frequency region, having been transmitted by the fruit or vegetable;said measurement device comprising:frequency region splitting means for splitting the light having the predetermined frequency region, having been transmitted by the fruit or vegetable continuously conveyed on said conveying means, into a predetermined number of frequency regions to guide the light to said light receiving means; anda signal processing circuit for converting the transmitted light split into said predetermined number of frequency regions to electric signals at intervals of a predetermined time, integrating the electric signals to convert the signals to intensity data, and converting the intensity data obtained at the intervals of the predetermined time to signals for evaluating the internal quality of the fruit or vegetable,wherein said signal processing circuit converts the transmitted light split into the predetermined number of frequency regions to the electric signals substantially simultaneously.