In this article,based on the construction of Dongguan Yulan Opern,authors state the space coordinates pinpoint technology with computer and modern measure instrument. The technology is a true-three-dimensional,high-efficiency,high-precision and wieldy measure method,which alters the tradition method of 2+1 dimensional measure method.
along with development of surveying instruments and technologies, especially extensive application of space technologies, a great deal of surveying data can be gained in the short time, moreover, data is seriously influenced by outside environment, and factors impacting observation results is too much , and its function relation is complicated and unknown.
In this paper, the structure and principle of the Ni-Cd battery , llsed in modern surveying instruments,ave analysed in detail,anf the favourable factors of In the tnd the methods of invalid detevting and the e-liminating of remembering effeet of the Ni-Cd battery ave disvussed.
A systematic report of content, scheme and data analysis of modern large cable stayed bridge deformation monitoring is given on the basis of the monitoring practice on the Second Bridge on Yangtse River in Wuhan. The author points out that the GPS and Surveying robot can meet the demands of large cable stayed bridge management unit and improve the surveying speed. The surveying results have very high accuracy.
It is especially necessary to emphasize the use of modern measurement instruments: lasers, signal-averaging devices, and digital computers.
In this paper, the structure and principle of the Ni-Cd battery , llsed in modern surveying instruments,ave analysed in detail,anf the favourable factors of In the tnd the methods of invalid detevting and the e-liminating of remembering effeet of the Ni-Cd battery ave disvussed.
In this paper, according to the trait of displacement monitor of NATM and combined with the develop of modern instrument of measure, two new methods of diplacement monitor of tunnel are put forward: “the system of three dimensional displacement monitor” and “the arbitrary point system of peripheral convergence of tunnel”. The former, at one point, can provide the dependable informations of three dimensional deformation for several sections of inspect in a short time. The latter, can provide the accurate informations...
In this paper, according to the trait of displacement monitor of NATM and combined with the develop of modern instrument of measure, two new methods of diplacement monitor of tunnel are put forward: “the system of three dimensional displacement monitor” and “the arbitrary point system of peripheral convergence of tunnel”. The former, at one point, can provide the dependable informations of three dimensional deformation for several sections of inspect in a short time. The latter, can provide the accurate informations of peripheral convergence of tunnel for several sections of inspect, and its working efficency can be improved distinctly than the conventional method.
A systematic report of content, scheme and data analysis of modern large cable stayed bridge deformation monitoring is given on the basis of the monitoring practice on the Second Bridge on Yangtse River in Wuhan.The author points out that the GPS and Surveying robot can meet the demands of large cable stayed bridge management unit and improve the surveying speed. The surveying results have very high accuracy.
现代测量仪器
modern measurement instruments
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