Wheat moisture determination by 1- to 110-MHz swept-frequency admittance measurements

Transactions of the American Society of Agricultural Engineers

Volumn 41, Issue 1, 1998, Pages 135-142

  Lawrence, K C ^a   Windham, W R ^a   Nelson, S O ^a  

^a RUSSELL RESEARCH CENTER   (United States)

Author keywords

Admittance; Dielectric measurement; Grain; Moisture content; Radio frequency measurements; Spectral analysis

Indexed keywords

DIELECTRIC PROPERTIES OF SOLIDS; ELECTRIC FREQUENCY MEASUREMENT; ELECTRIC IMPEDANCE MEASUREMENT; FUNCTIONS; LEAST SQUARES APPROXIMATIONS; MOISTURE DETERMINATION; REGRESSION ANALYSIS;

DENSITY INDEPENDENT FUNCTION (DIF); MULTIVARIATE ANALYSIS; PRINCIPAL COMPONENTS ANALYSIS;

GRAIN (AGRICULTURAL PRODUCT);

TRITICUM AESTIVUM;

EID: 0031967701     PISSN: 00012351     EISSN: None     Source Type: Journal    
DOI: None     Document Type: Article

References (26)

1. ASAE Standards, 40 Ed. 1993. S352.2. Moisture measurement - Unground grain and seeds, 449. St. Joseph, Mich.: ASAE.
2. Cowe, I. A., J. W. McNicol, and D. C. Cuthbertson. 1985. A designed experiment for the examination of techniques used in the analysis of near infrared spectra. Part 1. Analysis of spectral structure. Analyst 110:1227-1232.
3. Jacobsen, R., W. Meyer, and B. Schrage. 1980. Density independent moisture meter at X-band. In Proc. 10 European Microwave Conf., 216-220, Warsaw, Poland.
4. Johnson, R. A., and D. W. Wichern. 1988. Applied Multivariate Statistical Analysis. Englewood Cliffs, N.J.: Prentice Hall.
5. Kraszewski, A., and S. Kulinski. 1976. An improved microwave method of moisture content measurement and control. IEEE Trans. Industr. Electronics Control Instrum. IECI-23(4):364-270.
6. Kraszewski, A. W., and S. O. Nelson. 1991. Density-independent moisture determination in wheat by microwave measurement. Transactions of the ASAE 34(4):1776-1783.
7. Kraszewski, A., S. Kulinski, and A. Stosio. 1977. A preliminary study on microwave monitoring of moisture content in wheat. J. Microwave Power 12(3):241-251.
8. Lawrence, K. C., and S. O. Nelson. 1993a. Radio-frequency density-independent moisture determination in wheat. Transactions of the ASAE 36(2):477-483.
9. _. 1993b. Density-independent electrical moisture measurements in bulk wheat samples. ASAE Paper No. 93-3078. St. Joseph, Mich.: ASAE.
10. Mark, H. L., and D. Tunnell. 1985. Quantitative near-infrared reflectance analysis using Mahalanobis distance. Anal. Chem. 57:1449-1456.
11. Martens, H., and T. Naes. 1987. Multivariate calibration by data compression. In Near-Infrared Technology in the Agricultural and Food Industries, eds. P. Williams and K. Norris. St. Paul, Minn.: American Association of Cereal Chemist, Inc.
12. _. 1989. Multivariate Calibration. New York, N.Y.: John Wiley & Co.
13. McLendon, B. D., B. G. Branch, S. A. Thompson, A. Kraszewski, and S. O. Nelson. 1993. Density-independent microwave measurement of moisture content in static and flowing grain. Transactions of the ASAE 36(3):827-835.
14. Meyer, W., and W. Schilz. 1980. A microwave method for density independent determination of the moisture content of solids. J. Phys. D. Appl. Phys. 13:1823-1830.
15. _. 1981. Feasibility study of density-independent moisture measurement with microwaves. IEEE Trans. Microwave Theory Techn. MTT-29(7):732-739.
16. Nelson, S. O. 1965. Dielectric properties of grain and seed in the 1 to 50-MC range. Transactions of the ASAE 8(1):38-47.
17. _. 1976. Microwave dielectric properties of insects and grain kernels. J. Microwave Power 11(4):299-303.
18. _. 1981. Review of factors influencing the dielectric properties of cereal grains. Cereal Chem. 58(6):487-492.
19. _. 1982. Factors affecting the dielectric properties of grain. Transactions of the ASAE 25(4):1045-1049, 1056.
20. _. 1983. Observations on the density dependence of dielectric properties of particulate materials. J. Microwave Power 18(2):143-152.
21. Nelson, S. O., and L. E. Stetson. 1976. Frequency and moisture dependence of the dielectric properties of hard red winter wheat. J. Agric. Eng. Res. 21:181-192.
22. Powell, S. D., B. D. McLendon, S. O. Nelson, A. W. Kraszewski, and J. M. Allison. 1988. Use of a density-independent function and microwave measurement system for grain moisture measurement. Transactions of the ASAE 31(6):1875-1881.
23. Shenk, J. S., and M. O. Westerhaus. 1991. Population definition, sample selection, and calibration procedures for near infrared reflectance spectroscopy. Crop Sci. 31(2):469-474.
24. Shenk, J. S., and M. O. Westerhaus. 1995. NIRS 3 routine operation, calibration, and network system management software for near infrared instruments. Silver Springs, Md.: NIR Systems, Inc.
25. Vainikainen, P. V., E. G. Nyfors, and M. T. Fischer. 1987. Radiowave sensor for measuring the properties of dielectric sheets: Application to veneer moisture content and mass per unit area measurement. IEEE Trans. Instr. Meas. IM-36(4):1036-1039.
26. Zoerb, G. C., G. A. Moore, and R. P. Burrow. 1993. Continuous measurement of grain moisture content during harvest. Transactions of the ASAE 36(1):5-9.