The State of Israel, Ministry of Agriculture and Rural Development, Agricultural Research Organization (aro) (volcani Institute)

S.a.e. Afikim Computerized Dairy Management System

Agricultural Research Organization of the State of Israel Ministry of Agriculture

Zeev Schmilovitch

Aharon Hoffman

Haim Egozi

Ilan Halachmi

Gil Katz

Tal Rapaport

Uri Yermiyahu

Ephraim Maltz

Eithan Uner

Martin I Kutscher

Victor Alchanatis

Moran Sarig

A method of measuring element concentration in plant leaves comprises steps of: (a) gathering leaves of plants to be tested; (b) conditioning specimens of said leaves; (c) obtaining raw count-per-second XRF datasets of said specimens; (d) obtaining raw NIR datasets of said specimens; (e) obtaining raw analytical datasets; and (f) assessing concentrations of minerals within said specimens on the basis of said count-per-second XRF, NIR and analytical datasets. The aforesaid method further comprises steps of obtaining white reference radiance datasets and normalizing said raw NIR datasets on the basis thereof and providing NIR reflectance datasets.

Device for measuring element concentrations in plant leaves and method of implementing the same

An NIR spectroscopy fluid analyzing system using a series of LED's, each having its own preselected center wavelength, as illumination sources. These wavelengths have overlapping spectral widths, such that the measurement covers a broad spectrum. The LED's illuminate the fluid sample sequentially, and subsequently the transmission absorbance through the sample and the reflectance or scattering from the sample is measured for the wavelength range of each LED. The measurements are performed using photodetectors. The concentrations of component parts of the fluid are expressed in the form of a polynomial, which is a function of the measured transmitted and/or reflected intensities, and of empirical coefficients, which are extracted by prior statistical analysis on measured intensities obtained from a large number of test samples having known concentrations of the component. A novel sample chamber, capable of performing optical absorption measurements on a flowing sample of fluid, is described.

Spectroscopic fluid analyzer

Growing community of inventors

Yehud, Israel

Zeev Schmilovitch