Biological product testing using mechanical response

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216305%3A26220%2F03%3APU36716" target="_blank" >RIV/00216305:26220/03:PU36716 - isvavai.cz</a>
Result on the web
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DOI - Digital Object Identifier
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Result language
angličtina
Original language name
Biological product testing using mechanical response
Original language description
Utility value of fruit can be judged by sensual perception or by standard mechanical-analytical scoring methods that are usually destructive and non-reproducible. Better objectivity may be reached by non-destructive methods, which are not familiarly known and used yet, mostly because of their sophistication and expensiveness. This topic is observed since 1968 in foreign literature. By our information, nobody was dealing with these problems in the Czech Republic. Thus, we decided to check these new treends and try to find our own optimal measuring method applicable in the area of investigation as well as processing of agricultural product. Typical example is impulse-response technique. This method uses determination of the resonance frequency of the fruit, which is obtained by excitation of the fruit (e.g. by stroke) and calculation of Fourier transformation of resulting signal. It is possible to determine the so-called stiffness factor S from the resonance frequency as follows, [1]: S=
Czech name
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Czech description
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Publication year
2003
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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