Title :
A novel calibration model for reducing the effect of fluctuations in density and temperature on grain moisture measurement using microwave techniques
Author :
Cho, K.J. ; Jeong, S.H. ; Jeon, B.K. ; Bae, H.K. ; Kim, J.H. ; Lee, J. ; Kim, K.B. ; Noh, S.W.
Author_Institution :
Dept. of Radio Sci. & Eng., Kwangwoon Univ., Seoul, South Korea
fDate :
11/1/1999 12:00:00 AM
Abstract :
A new calibration model for the measurement of grain moisture content is proposed to reduce the effects of fluctuations in density and temperature which give serious errors for the measurements. For the experiments, a microwave transceiver using a free-space transmission method is designed and implemented. From the results of regression analysis using the statistical analysis method, the moisture content of grain samples is expressed in terms of the output voltage, temperature, and bulk density of samples. The measured values of moisture content are compared with predicted values of those using this model
Keywords :
agriculture; calibration; density; measurement errors; microwave measurement; moisture measurement; statistical analysis; temperature distribution; transceivers; 10.5 GHz; bulk density; calibration model; density fluctuations; errors; free-space transmission method; grain moisture content; grain moisture measurement; microwave techniques; microwave transceiver; output voltage; regression analysis; statistical analysis method; temperature fluctuations; Calibration; Density measurement; Design methodology; Fluctuations; Microwave theory and techniques; Moisture measurement; Regression analysis; Statistical analysis; Temperature; Transceivers;
Conference_Titel :
Microwave Conference, 1999 Asia Pacific
Print_ISBN :
0-7803-5761-2
DOI :
10.1109/APMC.1999.829916
