CN102636148B - Nondestructive measurement method for tree deformation - Google Patents

Nondestructive measurement method for tree deformation Download PDF

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Publication number
CN102636148B
CN102636148B CN201210109551.2A CN201210109551A CN102636148B CN 102636148 B CN102636148 B CN 102636148B CN 201210109551 A CN201210109551 A CN 201210109551A CN 102636148 B CN102636148 B CN 102636148B
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CN
China
Prior art keywords
steel wire
cushion block
deformation
spring
tree
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Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
CN201210109551.2A
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Chinese (zh)
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CN102636148A (en
Inventor
邵卓平
吴贻军
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Anhui Agricultural University AHAU
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Anhui Agricultural University AHAU
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Priority to CN201210109551.2A priority Critical patent/CN102636148B/en
Publication of CN102636148A publication Critical patent/CN102636148A/en
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Publication of CN102636148B publication Critical patent/CN102636148B/en
Expired - Fee Related legal-status Critical Current
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  • Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
  • Measurement Of Length, Angles, Or The Like Using Electric Or Magnetic Means (AREA)

Abstract

The invention discloses a nondestructive measurement method for tree deformation. The measurement method utilizes a spring steel wire hoop sleeve method, namely a fixed cushion block which is provided with a deformation sensor is threaded on a steel wire; one end of the steel wire is coupled with a spring and the other end of the steel wire is provided with a hook; the spring steel wire surrounds a trunk for one circle and the hook is hung on the spring; the spring steel wire surrounds the truck for two circles up and down respectively; and the deformation sensor is mounted on the fixed cushion block which is threaded on the steel wire. The nondestructive measurement method for the tree deformation solves the problem of the prior art that normal cell tissues of trees are easily damaged by the measurement of the tree deformation and has the advantages of simple design and reasonable structure; and the nondestructive measurement method for the tree deformation can ensure that the stress deformation of the trees is conveniently and accurately measured under the precondition that the trees are not damaged.

Description

Nondestructive measurement method for tree deformation
Technical field
The present invention relates to protection of trees technical field, specifically belong to nondestructive measurement method for tree deformation.
Background technology
How realizing the convenience to trees stress deformation, effective non-destructive measuring method, is the gordian technique of the anti-drifting snow hazard ability of research trees.But up to now; the two ends of sensor are followed closely in trees with nail by various countries; this mode easily damages the cell tissue of formation layer in trunk and xylem, therefore, should not adopt for needing the above-mentioned measuring method that damages of the ancient and well-known trees of special protection.
Content of the present invention
The object of the invention is to propose a kind of nondestructive measurement method for tree deformation, solve prior art measures easily damage trees normal cell tissue problem to tree deformation, simplicity of design, rational in infrastructure, can guarantee under the prerequisite not damaging trees the convenience of trees stress deformation amount, Measurement accuracy.
The technical solution used in the present invention is as follows:
Nondestructive measurement method for tree deformation, this described measuring method, adopt spring steel wire cuff method, be about to be through steel wire for the fixing cushion block installing deformation-sensor, steel wire one end has spring, and the other end has hook, steel wire encloses around trunk one, be hung on spring, steel wire is upper and lower two circles around trunk, and deformation-sensor is installed on the fixing cushion block that is through on steel wire.
Described fixing cushion block is nylon cushion block, and nylon cushion block lower end is provided with rubber blanket.
Described fixing cushion block corner is provided with fine steel needle, and fine steel needle length is optional, makes it only to thrust the outer dead cell part of bark, play the effect stoping cushion block to slide.
Described fixing cushion block is provided with deformation-sensor mounting hole.
Compared with the prior art, beneficial effect of the present invention is as follows:
The present invention designs and adopts elastic wire cuff method, and be upper and lower two circles by spring steel wire around trunk, displacement transducer is installed on fixing cushion block.This mode can not produce damage to trees, measures accurately tree deformation.Simultaneously easy to use for irregular tree dry measure.
Accompanying drawing explanation
Fig. 1 is spring steel wire cuff apparatus structure schematic diagram of the present invention;
Fig. 2 is that spring steel wire cuff device of the present invention and deformation-sensor are installed on tree structure schematic diagram.
Embodiment
See accompanying drawing, nondestructive measurement method for tree deformation, this measuring method, adopt elastic wire cuff method, nylon cushion block 1 is through on steel wire 2, steel wire 2 one end has spring 3, steel wire 2 encloses around tree body 4 one, the steel wire of steel wire 2 other end additional length is cut off during in-site installation, be crafted into again and hook-shapedly connect with other end spring 3, upper and lower two two ends of measured tree body 4 are equipped with spring steel wire coil, and nylon cushion block is provided with deformation-sensor 5 and installs inner bolt hole 8, are arranged on by deformation-sensor 5 on nylon cushion block 1 and just can carry out harmless or micro-loss measurement to trees.Nylon cushion block 1 lower end is provided with rubber blanket 6, and rubber blanket 6 is between nylon cushion block 1 and tree body 4.Nylon cushion block 4 four jiaos there is fine steel needle 7, its length is optional can be needed to select according to actual conditions, short fine steel needle can be selected for rare ancient tree, make it only to thrust the outer dead cell part of bark, play the effect stoping nylon cushion block 1 to slide, cuff spring steel wire coil can prevent nylon cushion block from coming off.Usually, the bark of ancient tree is thicker, and the method can realize the effect of nondestructive measurement, not only convenient but also reliable.

Claims (1)

1. nondestructive measurement method for tree deformation, it is characterized in that: this described measuring method, adopt spring steel wire cuff method, be about to be through steel wire for the fixing cushion block installing deformation-sensor, steel wire one end has spring, and the other end has hook, steel wire encloses around trunk one, be hung on spring, steel wire is upper and lower two circles around trunk, and deformation-sensor two ends are installed on the fixing cushion block that is through on upper and lower steel wire; Described fixing cushion block is nylon cushion block, and nylon cushion block lower end is provided with rubber blanket; Described fixing cushion block corner is provided with fine steel needle, and fine steel needle length can be selected according to dead bark thickness showed, makes fine steel needle only hammer into bark dead cell part, plays the effect stoping cushion block to slide; Described fixing cushion block is provided with deformation-sensor mounting hole.
CN201210109551.2A 2012-04-16 2012-04-16 Nondestructive measurement method for tree deformation Expired - Fee Related CN102636148B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201210109551.2A CN102636148B (en) 2012-04-16 2012-04-16 Nondestructive measurement method for tree deformation

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201210109551.2A CN102636148B (en) 2012-04-16 2012-04-16 Nondestructive measurement method for tree deformation

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CN102636148A CN102636148A (en) 2012-08-15
CN102636148B true CN102636148B (en) 2015-03-04

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Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103018092B (en) * 2012-11-28 2015-10-28 安徽农业大学 The full dose method of testing of trees mechanical quantity
CN107092747A (en) * 2017-04-21 2017-08-25 安徽农业大学 Trees wind load assay method

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4283629A (en) * 1978-10-26 1981-08-11 Adolf Habermehl Method and apparatus for testing materials such as disease in living trees
CN101655430A (en) * 2009-09-22 2010-02-24 东北林业大学 Non-destructive testing experimental device of wood materials
JP4669928B2 (en) * 2007-07-10 2011-04-13 島根県 Intra-tree diagnostic method and apparatus
CN201848042U (en) * 2010-10-27 2011-06-01 长沙中联消防机械有限公司 Apparatus fixing device for fire engines

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102240131A (en) * 2010-11-23 2011-11-16 上海市格致初级中学 Cup with facial tissues
CN102249058A (en) * 2011-04-14 2011-11-23 孙逸宸 Energy-saving insulation system for storage tank or tower

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4283629A (en) * 1978-10-26 1981-08-11 Adolf Habermehl Method and apparatus for testing materials such as disease in living trees
JP4669928B2 (en) * 2007-07-10 2011-04-13 島根県 Intra-tree diagnostic method and apparatus
CN101655430A (en) * 2009-09-22 2010-02-24 东北林业大学 Non-destructive testing experimental device of wood materials
CN201848042U (en) * 2010-10-27 2011-06-01 长沙中联消防机械有限公司 Apparatus fixing device for fire engines

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
吴福社等.应力波仪和阻力仪用于雪松立木内部材性检测的研究.《安徽农业大学学报》.2011,第38卷(第1期),127-130. *

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