Dinamica Generale AgriNIR, Operator'S Manual

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General Information AgriNIR™ Analyzer Rev. A11
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INTRODUCTION
Some images included in this manual may differ from the real ones due a recent product updates. The
methods of use described are equally correct.
AgriNIR™ by is a portable
optical analyzer for fresh forages based on NIR
technology in order to measure humidity (dry
matter), crude protein, starch, ash, ADF and NDF of
the analyzed materials. Thanks to AgriNIR™ the
analysis of most relevant and variable ingredients
(forages!) used in your ratios can be performed just
in a few seconds on site, allowing to know in real
time its actual nutritional values.
AgriNIR™ is based on NIR (Near Infra-Red) techno-
logy: it scans the sample with light and reads the
spectra absorbed by the sample in the NIR region.
Thanks to
chemometrics techniques and
mathematical algorithms based on multivariate
analysis, the AgriNIR™ is able to provide
predictions on actual nutrients of the sample in a
real time.
This instrument structure is composed by :
•
a microcomputer that manages the data, carries out mathematical operations applying complex
algorithms, providing the final results and the user interface devices: screen, keyboard and printer;
•
an optical group: the sample scanner and the NIR sensor, a transducer able to transform the optical
signal in an electrical one.
During the process of analysis there are the following main steps:
1. the light source emits light investing the sample inserted into the sample cup;
2. the sample absorb part of the light accordingly to its actual nutritional values;
3. the thermo-controlled NIR sensor collects spectra and measures the absorbance transforming the
optical in an electrical signal, then in numerical data;
4. the data are transferred to the microcomputer able to apply all mathematical algorithms in order
to predict the actual nutritional values for the sample.