Version 1
: Received: 29 May 2023 / Approved: 30 May 2023 / Online: 30 May 2023 (09:35:40 CEST)
How to cite:
Yao, J.; Wu, Z.; Zheng, Y.; Rao, B.; Li, Z.; Hu, Y.; Nie, B. A Design of Tree Micro Drill Instrument to Improve the Accuracy of Wood Density Measurement. Preprints2023, 2023052098. https://doi.org/10.20944/preprints202305.2098.v1
Yao, J.; Wu, Z.; Zheng, Y.; Rao, B.; Li, Z.; Hu, Y.; Nie, B. A Design of Tree Micro Drill Instrument to Improve the Accuracy of Wood Density Measurement. Preprints 2023, 2023052098. https://doi.org/10.20944/preprints202305.2098.v1
Yao, J.; Wu, Z.; Zheng, Y.; Rao, B.; Li, Z.; Hu, Y.; Nie, B. A Design of Tree Micro Drill Instrument to Improve the Accuracy of Wood Density Measurement. Preprints2023, 2023052098. https://doi.org/10.20944/preprints202305.2098.v1
APA Style
Yao, J., Wu, Z., Zheng, Y., Rao, B., Li, Z., Hu, Y., & Nie, B. (2023). A Design of Tree Micro Drill Instrument to Improve the Accuracy of Wood Density Measurement. Preprints. https://doi.org/10.20944/preprints202305.2098.v1
Chicago/Turabian Style
Yao, J., Yunchao Hu and Bolin Nie. 2023 "A Design of Tree Micro Drill Instrument to Improve the Accuracy of Wood Density Measurement" Preprints. https://doi.org/10.20944/preprints202305.2098.v1
Abstract
To improve the measurement accuracy of wood density and study the linear correlation between the drill feed resistance and wood density, a new micro drill instrument that can can simultaneously measure the rotation resistance and feed resistance of the drill needle was designed. The test wood samples included hardwood, softwood and conifer. The absolute dry density of each wood sample was measured. The drill resistance data was tested by using self-developed micro drill instrument and Resistogaph 650-SC. 4 linear models between drill resistance and the absolute dry density of wood . The results showed that: the statistical indicators of each model of the self-made micro drill resistance in-strument were better than the corresponding indicators of Resistogaph 650-SC; the coefficient of determination of the linear regression model between the feed resistance of the self-made micro drill resistance instrument and the absolute dry density of wood was 0.946; the statistical indicators of model including rotation resistance and feed resistance, were better than those of the model only including rotation resistance. Therefor, the design proposed in the article is reasonable, and increasing the feed resistance can improve the measurement accuracy of the micro drill resistance instrument for measuring wood density.
Copyright:
This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
