1.7–256 plane grating spectrometer  (Carl Zeiss)

Journal: Data in Brief

Article Title: Near-infrared spectra dataset of milk composition in transmittance mode

doi: 10.1016/j.dib.2023.109767

Figure Lengend Snippet:

Article Snippet: These elements included: (1) an NIR spectrometer (1.7-256 Plane Grating Spectrometer, Carl Zeiss, Jena, Germany) equipped with a cooled 256-pixel InGaAs (indium-gallium-arsenide) diode array with a resolution of 2.86 nm per pixel in the 960–1690 nm wavelength range; (2) a 20 Watt integrated halogen light source (998079-14, Welch Allyn, New York, USA); (3) a mechatronic support system, which utilized a peristaltic pump (EZ OEM Pump, Verderflex, the Netherlands) to regulate the flow of milk from the bypass to the cuvette for spectral analysis and consequent evacuation of the milk after the analysis; (4) a computer that executed the spectral acquisition and control software utilizing LabView 2012 (National Instruments, Austin, USA); and (5) an optical measurement unit.

Techniques: Spectroscopy, Cell Counting, Control

Journal: Data in Brief

Article Title: Near-infrared spectra dataset of milk composition in transmittance mode

doi: 10.1016/j.dib.2023.109767

Figure Lengend Snippet:

Article Snippet: How the data were acquired , For all milkings performed by an automatic milking system (AMS), an on-farm long-wave near-infrared (LW-NIR, 960–1690 nm) analyzer measured the transmittance spectra of a representative raw milk sample. These measurements were acquired using a 256-pixel cooled InGaAs diode array NIR spectrometer (1.7-256 Plane Grating Spectrometer, Carl Zeiss, Jena, Germany) with a resolution of 2.86 nm per pixel, fixing an integration time of 100 ms and averaging 100 repeated measures. For the same sample, white and dark reference spectra were also acquired, and laboratory reference values for fat, protein, lactose, urea and somatic cell count (SCC) were obtained following ISO 9622 and ISO 13366-2:2006..

Techniques: Spectroscopy, Cell Counting, Control