Non-destructive detection method for tree defects
A non-destructive detection and defect technology, applied in the field of detection, can solve problems such as the need to improve the accuracy, and achieve the effects of high defect positioning accuracy, simple detection method, and small damage to trees.
Active Publication Date: 2022-05-06
HUBEI UNIV FOR NATITIES
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Problems solved by technology
At present, many non-destructive flaw detectors for trees on the market mainly install multiple sensors on the wood section to be tested, and at the same time combine stress parameters to detect flaws. However, the accuracy of this flaw detection effect needs to be improved.
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[0034] Embodiments of the present invention are described in detail below, examples of which are shown in the drawings, wherein the same or similar reference numerals designate the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the figures are exemplary only for explaining the present invention and should not be construed as limiting the present invention.
[0035] In the description of the present invention, unless otherwise specified and limited, it should be noted that the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be mechanical connection or electrical connection, or two The internal communication of each element may be directly connected or indirectly connected through an intermediary. Those skilled in the art can understand the specific meanings of the above terms according to specific situations.
[0036] Such as fig...
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The invention provides a method and device for non-destructive detection of tree defects. The method comprises the steps of: selecting trees to be detected, selecting a cross-section of the trees to be tested; selecting at least two groups of ultrasonic transmission paths with different ultrasonic transmission directions on the cross-section, each group of paths is composed of multiple paths, each Each path is equipped with ultrasonic probes; the non-metallic ultrasonic flaw detector collects the ultrasonic transmission speed on each path; the ultrasonic transmission speed on each path is corrected; the abnormal path is judged; according to the ultrasonic transmission speed on each path, the entire The transmission speed grid diagram of the tree section, through computer data processing and the transmission speed grid diagram, determines the location of the defect and makes a schematic diagram of the defect. The method can quickly, accurately and non-destructively detect whether there is a defect inside the tree, and can quickly locate the position of the defect to obtain a schematic diagram of the defect.
Description
technical field [0001] The invention relates to the field of detection, in particular to a method and device for non-destructive detection of tree defects. Background technique [0002] Old and famous trees, precious wood, etc. are expensive, so their value evaluation is very important, and an important point in evaluating their value is whether there is damage to the inside of the tree or wood. At present, many nondestructive flaw detectors for trees on the market mainly install multiple sensors on the wood section to be tested, and combine stress parameters to detect flaws at the same time. However, the accuracy of this flaw detection effect needs to be improved. Contents of the invention [0003] In order to overcome the above-mentioned defects in the prior art, the object of the present invention is to provide a method and device for non-destructive detection of tree defects. [0004] In order to achieve the above-mentioned purpose of the present invention, the presen...
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IPC IPC(8): G01N29/04G01N29/07G01N29/44
CPCG01N29/04G01N29/07G01N29/44G01N29/4445G01N2291/0238G01N2291/0289G01N2291/011
Inventor 周丙涛陈世强艾训儒
Owner HUBEI UNIV FOR NATITIES