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Instrumental Techniques for Measuring Quality of Agricultural Crops

  • Karl H. Norris
Part of the Nato Advanced Study Institutes Series book series (NSSA, volume 46)

Abstract

Many instrumental techniques have been developed for measuring the quality of agricultural products. However, instrumentation specialists often feel frustrated in this effort because quality as related to agricultural products is difficult to define in terms of physical parameters which can be readily quantified. In general, it is the chemical composition of the product which really determines the quality, but most often, we define the quality by our senses of sight, touch, or smell, rather than by the composition. It has been our experience that it is much easier to develop techniques to measure composition than it is to measure quality. Therefore, this paper will concentrate on the measurement of composition as a means of indicating quality. Spectrophotometry by transmission, reflectance, and fluorescence offers the best technology for instrumental measurement of composition, so we will examine the visible and near-infrared region of the spectrum for this purpose.

Keywords

Gallium Arsenide Difference Curve Instrumental Technique Lead Sulfide Corn Kernel 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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References

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Copyright information

© Plenum Press, New York 1983

Authors and Affiliations

  • Karl H. Norris
    • 1
  1. 1.Instrumentation Research LaboratoryBARC, ARS, USDABeltsvilleUSA

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