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| Content Provider | IEEE Xplore Digital Library |
|---|---|
| Author | Changzhi Lv Di Fan Bo Shi Wei Wang Zhihai Liu |
| Copyright Year | 2009 |
| Description | Author affiliation: Shandong University of Science and Technology Qingdao, 266510, China (Changzhi Lv; Di Fan; Bo Shi; Wei Wang) || Geophysical Exploration Of Shengli Petroleum Dongying, 257100, China (Zhihai Liu) |
| Abstract | Distortion is an important performance of geophone and it can effect the accuracy of the data obtaining in seismic exploration directly. In this paper, a distortion tester based on FPGA (Field Programmable Gate Array) has been designed. On the base of the dynamic and equivalent circuit models of geophone and the analysis of windows, the measurement is exciting the geophone by a sine current signal, transforming the windowed response sequence by FFT (Fast Fourier Transform) and calculating the distortion of response. The DDS(Direct Digital Synthesis) to generate excitation signal and FFT are realized on the FPGA. Experiments to test the distortion of GP903/4A-10Hz geophone have been done and the results show that the measurement is sample and test precision is high. The application of FPGA also makes the tester low cost, low power, small size and it is easy to be upgraded. |
| Starting Page | 1289 |
| Ending Page | 1292 |
| File Size | 837840 |
| Page Count | 4 |
| File Format | |
| ISBN | 9781424447947 |
| DOI | 10.1109/ICAL.2009.5262773 |
| Language | English |
| Publisher | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
| Publisher Date | 2009-08-05 |
| Publisher Place | China |
| Access Restriction | Subscribed |
| Rights Holder | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
| Subject Keyword | FPGA Circuit testing geophone direct digital synthesis(DDS) Seismic measurements Fast Fourier transforms Current measurement FFT Circuit synthesis Distortion measurement Signal synthesis Signal analysis Field programmable gate arrays Equivalent circuits distortion |
| Content Type | Text |
| Resource Type | Article |
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