Title :
Temperature Dependence of Photoluminescence from Rice for Non-Destructive Quality Control
Author :
Katsumata, Tooru ; Aizawa, Hiroaki ; Saito, Mariko ; Komuro, Shuji ; Morikawa, Takitaro
Author_Institution :
Sensor Photonics Res. Center, Toyo Univ., Kawagoe
Abstract :
Non-destructive evaluation technique of rice developed based on photoluminescence is examined with various temperatures. The visible PL with broad peak at wavelength of lambda=462 nm are observed from various foods including starches under illumination of ultra-violet (UV) light at lambda=365 nm. Peak intensity is found to b extremely sensitive to the temperature of specimens. Peak intensity of PL decreases exponentially with temperature. Starches is suggested to be used as a sensor material in fluorescence thermometer. Temperature must be controlled in non-destructive quality control of starches using photoluminescence
Keywords :
agricultural products; biological techniques; food products; photoluminescence; quality control; 365 nm; 462 nm; fluorescence thermometer; food; nondestructive evaluation technique; photoluminescence; quality control; rice; sensor material; starch; temperature dependence; ultra-violet light; Image processing; Lighting; Optoelectronic and photonic sensors; Photoluminescence; Quality control; Sensor phenomena and characterization; Temperature dependence; Temperature sensors; Thermal sensors; Two dimensional displays; Temperature dependence; food; non-destructive evaluation; photoluminescence; rice;
Conference_Titel :
SICE-ICASE, 2006. International Joint Conference
Conference_Location :
Busan
Print_ISBN :
89-950038-4-7
Electronic_ISBN :
89-950038-5-5
DOI :
10.1109/SICE.2006.315450
