ON-LINE NIR SPECTROANALYSER  On-Line measurement of FAT, PROTEIN, WATER, MOISTURE AND TOTAL SOLIDS

Measurement Principle:

In the NIR-measurement technology the surface of the product is illuminated by white halogen light. An optical fiber sensor transfers the data, measured after the transmissive or reflective principle, to the diode array. A significant higher resolution can define all molecules with an absorption line in the spectrum of measurement. The evaluation with diode arrays realize the measurement of every organic component in the detected spectrum. Mainly this are CH-, NH- and OH-molecules.

Evaluation Unit

The simultaneous measurement of up to 5 organic components is realized with an accuracy of 2 nanometers through a high resolution diode array. The spectral detection in the spectrometer is defined in the wavelength range between 600 and 2500 nanometers. Modular structure of evaluation-unit and NIR-sensor, are connected by an optical fiber with a max. length of up to 100 meters. The optical fiber is protected through a coating of stainless steel and contains no organic components, which could have any influence to the result of the measurement. The simultaneous measurement of up to 5 organic components is realized with an accuracy of 2 nanometers through a high resolution diode array. The spectral detection in the spectrometer is defined in the wavelength range between 600 and 2500 nanometers.

NIR Sensor in Pipe Line

At the transmission principle the white Halogen light streams through the product. This only works, if the product is made of transparent material. The halogen light is received by the NIR-sensor (at the opposite side of the lamp) and is transferred to the diode array via an optical fiber. The measurements are performed normally at tanks, silos, mixers and pipes. Different flow cells and flanges with special glass windows are available also for the requirements in the food industry. The measurement cannot be influenced by environmental light or colour. The NIR-reflection measurement at conveyer belts only should be realized, if the product provides a homogeneous and plain structure of the surface.

On-Line TS, FAT & PROTEIN Measurement in Dairy Plants

NIR Reflection        

NIR Transmission

NIR Sensor 0n Tank