MEASURING METHOD OF GROWTH AMOUNT FOR CIRCUMFERENCE LENGTH OF TRUNK OF TREE USING OPTICAL FIBER

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专利权人:

CHORYO SEIGYO SYSTEM KK

发明人:

KAI TOKIO,YAMAGUCHI NORIYUKI,MIYAGAWA TAKESHI

申请号：

JP20000322427

公开号：

JP2002131026(A)

申请日:

2000.10.23

申请国别(地区):

日本

年份:

2002

代理人:

摘要：

PROBLEM TO BE SOLVED: To allow measuring the whole or an arbitrary section of circumference length of the trunk of a tree increasing with enlarged growth of the tree with high accuracy, from a distance and without necessity of power source nearby the tree. SOLUTION: An optical fiber 2 forming a curved part 2c having a predetermined curvature is attached in the circumferential direction of outer circumference of a trunk 1 of a tree, the curvature of the curved part 2c of the fiber 2 is changed in proportion to a growth amount of the trunk 1, so that the amount of the trunk 1 is measured with the change of a translucent light amount of the fiber 2.

来源网站：

中国工程科技知识中心

来源网址：

http://www.ckcest.cn/home/