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Precision measurement device for tree walk increment

A technology for precise measurement and growth, applied in measuring devices, instruments, etc., can solve problems such as poor comparability and large tree diameter differences, and achieve the effects of light weight, long working life and simple mechanical structure

Active Publication Date: 2014-08-27
CHINA JILIANG UNIV
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Problems solved by technology

If the difference in tree diameter is large, the comparability between measurement results is poor

Method used

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  • Precision measurement device for tree walk increment
  • Precision measurement device for tree walk increment
  • Precision measurement device for tree walk increment

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Embodiment Construction

[0024] DETAILED DESCRIPTION OF THE INVENTION The precision measuring device for plant diameter growth is designed according to the functional relationship between tree diameter variation and its device mechanical structure. The present invention will be further described below in conjunction with the accompanying drawings.

[0025] Such as figure 1 As shown, it is the principle of the plant diameter growth precision measuring device, which can be deduced as formula (1):

[0026] d = 2 r = 2 [ b cos α 2 + ( l 1 - l 0 ) cos ( β - 2 π 3 ) - x co...

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Abstract

The invention discloses a precision measurement device for tree walk increment. The device can measure the diameter of a tree in real time and reduce errors. The measurement device comprises a support, a magnetic railing ruler, a sensor clamp, a micron-level displacement sensor and a signal transmission processing circuit. According to the support, the diameter is measured through a three-point method, and two parts are assembled to form a V-shaped body with an included angle ranging from 90 degrees to 150 degrees. With the combination of micron-level displacement sensor arranged at the coinciding position of diagonals of the V-shaped angle, measurement of the tree walk is achieved. The micron-level displacement sensor and the magnetic railing ruler conduct remote data transmission with an upper computer through the signal transmission processing circuit. By means of the precision measurement device for tree walk increment, the tree walk and the micro-change amount of the tree walk can be stably measured at the same time and in real time, and the measurement errors are reduced. The device applies small pressure on plants, and the device is simple in structure, convenient to use, light in weight, small in size and easy to carry.

Description

technical field [0001] The invention relates to the technical field of test and measurement, in particular to a precision measuring device for plant tree diameter growth. Background technique [0002] Forests are the source of life on earth and a necessary condition for human survival. Forests provide protection for human health and living environment. In order to protect the current status and long-term development of plants, it is necessary to study the influence of various environmental factors on plant growth. Among them, the measurement of plant growth, especially tree diameter growth, is particularly important. The growth of plant tree diameter is closely related to the growth environment. Its vertical and horizontal growth rate and tree diameter curvature directly reflect the growth status of plants. By detecting the vertical and horizontal growth rate of tree diameter and the change of tree diameter curvature, it is not only possible to know the growth rate of plant...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01B21/10
Inventor 李东升姚静远胡佳成郭明明周宇晗
Owner CHINA JILIANG UNIV
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