A method for quantitatively measuring the surface weathering speed of sandstone cultural relics
A quantitative measurement and sandstone quality technology, applied in the direction of measuring devices, instruments, scientific instruments, etc., can solve the problems of uncertainty in weathering time, difficulty in accurate weathering speed, and difficulty in realizing cultural relics, so as to achieve accurate research on weathering speed and change uncertainties performance and accuracy
Active Publication Date: 2017-10-31
山西云冈数字科技有限公司 +1
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Problems solved by technology
There are many problems and defects in the weathering speed of sandstone cultural relics measured by the above method: First, there are technical difficulties in the measurement of the weathered layer depth. Drilling holes is feasible for general weathered rocks, but it is obviously difficult for cultural relics that are non-renewable resources; secondly, there are uncertainties in determining the weathering time. However, the specific production time of a large part of sandstone cultural relics is difficult to determine
The final result is that the weathering depth is difficult to measure accurately, and the weathering time also has great uncertainty, and the accuracy of the weathering speed calculated from this is also questionable
Therefore, it is difficult to accurately measure the weathering rate of sandstone cultural relics in the traditional sense, and quantitative measurement is impossible.
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[0035] The weathering of sandstone cultural relics can be characterized by weathering speed (surface deformation speed), weathering breadth (weathering range), weathering depth, and weathering degree. The present invention mainly discusses the surface weathering speed. First of all, the weathering speed of the original sandstone cultural relics is given a new definition and connotation, that is, the surface volume change or single-point deformation of the sandstone cultural relics within the measurement time is defined as the weathering speed, and the weathering depth in the traditional definition is solved from a new perspective. Difficult to measure problem. Secondly, the interval time between volume changes or single-point changes based on three-dimensional laser scanning technology is defined as the weathering time, and the weathering time can be accurately determined according to the time interval between two detections, and the traditional way of inferring weathering from...
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The invention relates to a method for quantitatively measuring the surface weathering speed of sandstone cultural relics. The three-dimensional laser scanning technology used in the present invention is a non-contact measurement method, which has the characteristics of fast speed and high precision, and will not cause any damage to the cultural relics, making it possible to measure the weathering speed of the cultural relics, and solves the problem of traditional measurement methods. The technical problem of effective measurement of cultural relics has great promotion and practical significance for the protection and research of sandstone cultural relics. In addition, this method can accurately measure the volume change and single-point change of the measured cultural relics, and at the same time, the weathering time can also be accurately calculated, which ensures the accuracy of the final measured weathering speed and changes the uncertainty of the results obtained by previous measurement methods It is possible to accurately study the weathering speed.
Description
technical field [0001] The invention relates to a measuring method, in particular to a method for quantitatively measuring the surface weathering speed of sandstone cultural relics. Background technique [0002] In most cases, the expression of the weathering speed of sandstone cultural relics is only expressed by qualitative words such as "serious" and "fast". For scientific work such as cultural relic protection, there is neither data support nor the basic requirements of scientific rigor. The measurement of the weathering rate of sandstone cultural relics has always been a difficult problem in the industry. So far, it is difficult to have an effective and practical measurement method. However, the method of quantitatively measuring the surface weathering rate of sandstone cultural relics is a technical blank, and no one has been involved before. Previously, some scholars conducted relevant research on the weathering depth of sandstone cultural relics. The researchers defi...
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IPC IPC(8): G01N17/00G01B11/24
Inventor 宁波吴志群左霞张润平卿照何勇周宇超谷立鹏张洁何柳潘鹏兰静
Owner 山西云冈数字科技有限公司