Subscribe Now Subscribe Today
Research Article
 

An Automatic Excitation Device for the Determination of Standing Tree Moisture Content by Lateral Impact Vibration Method



Zhipeng Zhang, Yuanhao Dang and Junguo Zhang
 
Facebook Twitter Digg Reddit Linkedin StumbleUpon E-mail
ABSTRACT

There exists a considerable amount of water in standing trees. The moisture content of standing trees is of great significance to the disciplines of plant physiology, the wood drying, plant irrigation, quality evaluation of trees and prevention of disease and pest. One of the methods for the determination of standing trees is lateral impact vibration. The moisture content can be determined by measuring the resonance frequency of standing trees. The traditional tool used to induce the vibration is the wood hammer. However, it relies on human and can’t induce constant excitation. In view of the above limitations, an automatic excitation device is developed. The device consists of two parts, the mechanical structure and the control system. The mechanical structure includes the stepper motor, the mechanical arm and the base. The control system includes the MCU, the remote controller, the wireless receiver, the LCD and the stepper motor driver. The operation mode of the device can be set by the keys on the MCU or the remote controller. The device strikes the standing tree laterally and induces the vibration. It produces stable force, works automatically and promotes the efficiency remarkably in practical application.

Services
Related Articles in ASCI
Similar Articles in this Journal
Search in Google Scholar
View Citation
Report Citation

 
  How to cite this article:

Zhipeng Zhang, Yuanhao Dang and Junguo Zhang, 2013. An Automatic Excitation Device for the Determination of Standing Tree Moisture Content by Lateral Impact Vibration Method. Information Technology Journal, 12: 5775-5778.

DOI: 10.3923/itj.2013.5775.5778

URL: https://scialert.net/abstract/?doi=itj.2013.5775.5778
 

REFERENCES
1:  Constantz, J. and F. Murphy, 1990. Monitoring moisture storage in trees using time domain reflectometry. J. Hydrol., 119: 31-42.
CrossRef  |  

2:  Kamaguchi, A., N. Tetsuya and K. Yasuyoshi, 2000. Non-Destructive measurement of heartwood moisture content in Sugi (Cryptomeria japonica D. Don) standing tree by lateral impact vibration method. J. Japan wood res. Soc., 1: 13-19.
Direct Link  |  

3:  Loos, W.E., 1965. Determining moisture content and density of wood by nuclear radiation techniques. For. Prod. J., 15: 102-106.

4:  Bergman, R., Z.Y. Cai, C.G. Carll, C.A. Clausen and M.A. Dietenberger et al, 2010. Wood Handbook: Wood as an Engineering Material. 2nd Edn., United States Government Printing, USA.

5:  Menon, R,S., A.L. MacKay and J.R.T. Hailey, 1987. An NMR determination of the physiological water distribution in wood during drying. J. Applied Polymer Sci., 33: 1141-1155.
CrossRef  |  

6:  Namken, L.N. and E.R. Lemon, 1960. Field studies of internal moisture relations of the corn plant. Agron. J., 52: 643-646.
CrossRef  |  

7:  Schulz, A. B. and C.T. Bues, 1987. Moisture-content in spruce branches from healthy and diseased trees. Holzals roh-und Wekstoff, 4: 154-154.

8:  Taniwaki, M., H. Akimoto, T. Hanada, M. Tohrob and N. Sakuraia, 2007. Improved methodology of measuring moisture content of wood by a vibrational technique. Wood Mater. Sci. Eng., 2: 77-82.
CrossRef  |  

©  2020 Science Alert. All Rights Reserved