Control system and operation method of transient electromagnetic signal acquisition instrument of handheld pseudo random
A transient electromagnetic and signal acquisition technology, which is applied in electric/magnetic exploration, radio wave measurement systems, instruments, etc., can solve the problems of large volume, complex operation, and inability to realize data calculation and processing at the same time, achieving small size and low cost. Inexpensive, the effect of improving computing power
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Embodiment 1
[0037] Embodiment 1: the control system of a kind of hand-held pseudo-random transient electromagnetic signal acquisition instrument of the present invention, its structure is as follows figure 1 As shown, it includes a central control and processing module, a signal conversion module, a data storage module, a synchronization module, and a touch LCD module. The central control and processing module is bidirectionally electrically connected to the signal conversion module, the data storage module and the touch liquid crystal display module, and the central control and processing module is also electrically connected to the synchronization module.
[0038] Said central control and processing module contains Field Programmable Gate Array FPGA device and its peripheral configuration chips and program memory. Described Field Programmable Gate Array FPGA device model is chosen as EP3C40Q240 chip, and its internal processor structure sees figure 2 . The interior of field programma...
Embodiment 2
[0051] Embodiment 2: the control system of a kind of hand-held pseudo-random transient electromagnetic signal acquisition instrument of the present invention, its structure is as follows figure 1 As shown, it includes a central control and processing module, a signal conversion module, a data storage module, a synchronization module, and a touch LCD module. The difference is that in the central control and processing module, the field programmable gate array device FPGA device chip model is selected as EP4SGX230, and the embedded soft-core processor adopts ARM Cortex soft-core processor; the internal peripheral control logic unit is written in VHDL language, The embedded digital signal processor DSP adopts a hard-core DSP processor, and the synchronization module adopts the COMPASS module of the Beidou satellite navigation system. The touch liquid crystal display module adopts an industrial resistive touch screen.
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