一種電火花震源的控制監(jiān)護系統(tǒng)設計
[Abstract]:The application of EDM source in offshore oil and engineering geophysical exploration is more and more extensive, its status can not be ignored. Because of the high frequency characteristic of EDM source, its resolution is very high, although its energy is not as high as explosive. But the consistency of explosive is not as good as that of electric spark source, so the result of repeated measurement can be satisfactory under the condition of guaranteeing certain energy. After repeated measurement, satisfactory results can be obtained. The implementation of pseudorandom coding can greatly improve its resolution, its characteristic is that the energy is not very large, but through the pseudorandom algorithm, its resolution has changed qualitatively. The design of this paper comes from the project of seismic monitoring in the Xining River fault zone by the State Seismological Bureau. This project requires the EDM source to send out elastic waves in the well and place a large number of geophone on the other side of the fault zone to measure geological conditions. Because the waveforms of different geology are different, it is possible to judge the situation of the fault zone according to multiple waveforms. But in the past, the manual mechanical buttons were used to control the operation of the instrument, and in the process of working and surveying, it is often inconvenient. Moreover, it can not view the parameters and data of the instrument in real time, so a better control method is needed to improve the working efficiency.
【學位授予單位】:長江大學
【學位級別】:碩士
【學位授予年份】:2015
【分類號】:P631.4
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