Feasibility study of hand-held, light-emitting diode-based, short-wave near infrared transmittance whole grain analyser

Markku Känsäkoski, Jouko Malinen, Jussi Tenhunen, Heinrich Prûfer

    Research output: Chapter in Book/Report/Conference proceedingConference article in proceedingsScientificpeer-review

    Abstract

    Rapid and accurate determination of the oil, moisture and protein content in grains and oilseeds on the field and at receiving stations has been dream for many years.The requirements for field analysers are very stringent. Light emitting diodes are promising radiation sources for spectroscopic analysers.Based on LEDs, VTT Electronics has developed a handheld 32 channel SWNIR (830-1050nm) transmittance grain analyser prototype.For whole grain wheat moisture measurement, we received an SEP of 0.14 and for protein the values SEC 0.23 and SEP 0.32.After the development of the handheld analyser prototype, VTT Electronics has improved the LED spectrometer module, through which the signal-to-noise ratio of the module has been improved by almost an order of magnitude overall, while even more than two orders of magnitude at the long wavelength end.This is likely to bring about a remarkable improvement in the accuracy of protein measurement.
    Original languageEnglish
    Title of host publicationProceedings of the 9th International Conference on Near Infrared Spectroscopy
    EditorsA.M.C. Davies, R. Giangiacomo
    Pages191 - 196
    Publication statusPublished - 2000
    MoE publication typeA4 Article in a conference publication

    Keywords

    • NIR
    • handheld analyser
    • near infrared transmittance spectroscopy
    • whole grain
    • wheat

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