Eddy current array detection apparatus based on compressed sensing and detection method thereof, and eddy current array probe
A technology of array probes and detection devices, which is applied in the direction of measuring devices, instruments, and material analysis through electromagnetic means, can solve the problems of high hardware circuit load and large data transmission volume, so as to prolong the service life, prolong working time, and save The effect of sampling energy consumption and computing energy consumption
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[0028] Embodiment 1: as Figure 1-8 As shown, an eddy current array detection device based on compressive sensing includes an excitation signal generator, a power amplifier, an eddy current array probe, a signal acquisition module, an FPGA controller and a PC upper computer;
[0029] Described FPGA controller is connected with excitation signal generator, signal acquisition module and PC upper computer respectively by GPIB bus, IO port, RS232 bus; PC upper computer sends instruction to FPGA controller by RS232 bus, and FPGA controller receives according to Instructions, the excitation signal generator is controlled by the GPIB bus to generate pulse excitation signals; the FPGA controller sends random m pseudo-sequences to the signal acquisition module through the IO port; the output of the excitation signal generator is connected to the input of the power amplifier, and the output of the power amplifier The end is connected with the excitation coil 5 of each eddy current probe...
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