Title :
Quantitative moisture content detection in food wafers
Author :
Parasoglou, P. ; Parrott, E.P.J. ; Zeitler, J.A. ; Rasburn, J. ; Powell, H. ; Gladden, L.F. ; Johns, M.L.
Author_Institution :
Dept. of Chem. Eng. & Biotechnol., Univ. of Cambridge, Cambridge, UK
Abstract :
A quantitative, non-invasive measurement of the moisture content of intact food wafers using terahertz (THz) radiation is presented. A linear relationship between the moisture content of the samples and the absorption of terahertz radiation was observed, particularly in the range of 0.2 to 0.6 THz. The method is robust with direct interpretation of the time domain signal requiring simple calibration against a gravimetric method.
Keywords :
calibration; electromagnetic wave absorption; food products; food technology; moisture measurement; terahertz waves; time-domain analysis; calibration; food wafer; frequency 0.2 THz to 0.6 THz; gravimetric method; quantitative moisture content detection; terahertz radiation absorption; time domain signal; Calibration; Electromagnetic measurements; Fluctuations; Food industry; Moisture measurement; Nitrogen; Robustness; Spectroscopy; Submillimeter wave measurements; Water;
Conference_Titel :
Infrared, Millimeter, and Terahertz Waves, 2009. IRMMW-THz 2009. 34th International Conference on
Conference_Location :
Busan
Print_ISBN :
978-1-4244-5416-7
Electronic_ISBN :
978-1-4244-5417-4
DOI :
10.1109/ICIMW.2009.5324623
