INFLUENCE OF PLYWOOD DEFECT PARAMETERS ON THE HARMONIC DISTORTION COEFFICIENT OF SHOCK SENSOR OUTPUT SIGNAL

Author:

Golovach Valentin, National University of Life and Environmental Sciences of Ukraine, Kyiv. Ukraine

Baranova Olha, National University of Life and Environmental Sciences of Ukraine, Kyiv. Ukraine

Language: ukrainian

Annotation:

In the article given the analysis of influence of plywood defect parameters on the harmonic distirtion coefficient of shock sensors output signal It's revealed that in the control of bundle defect of plywood material the output signal of shock sensor is influenced by the area (S), the depth ( h) and location of occurrence of the defect.

Key words:

plywood, flaw detection, the method of free oscillations, bundle, area, depth, the place of occurrence of the defect

References:

1. Pizhurin, AA.Pizhurin, AA. (2005).  Osnovy nauchnykh issledovanii v derevoobrabotke [Basic research in the wood]. Moscow : Moscow state fiorest Universioty Edition, 304 p. (in Russian).

2. Zashchuk, I. V. (1967). Elektronika i akusticheskie metody ispytaniia stroitelnykh materialov [Electronics and acoustic methods for testing of construction materials]. Moscow:Vysshaia shkola, 248 p. (in Russian).

3. AgranatB. A., Kirillov, O. D., Preobrazhenskii, N. A., Khavskii, N. N. (1967). Ultrazvuk v gidrometallurgii [Ultrasound in hydrometallurgy]. Moscow: Metallurgy, 304 p. (in Russian).

4. Babakov, N. M. (1968). Teoriia kolebanii [Oscillations theory]. Moscow: Science, 560 p. (in Russian).

5. Holovach, V. M., Baranova, O. S. (2015). Analiz reaktsii elementiv fanery na udarni vplyvy [Analysis of plywood elements of response to the shock effects]. Lisove i sadovo-parkove hospodarstvo. – Forestry and Horticulture, # 8. – Retrievedfrom: http://ejournal.studnubip.com/wp-content/uploads/2015/12/%D0%93%D0%BE%D0%BB%D0%BE%D0%B2%D0%B0%D1%87.pdf. (in Russian).

6. Holovach, V. M., Baranova, O. S. (2015). Analiz vplyvu kharakterystyk defektu fanery na kilkist pulsatsii vykhidnoho syhnalu udarnoho datchyka [Analysis of plywood defect characteristics on the number of pulsations shock sensor output signal]. Naukovyi visnyk NLTU Ukrainy. – Scientific bulletin of National Forestry University of Ukraine, # 25.10, p. 280(in Ukrainian).

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