High-speed multichannel current-voltage multiplexing collection unit and data collection method
A technology of current-voltage and acquisition unit, applied in the field of high-speed multi-channel current-voltage multiplexing acquisition unit and data acquisition, can solve the problems of data reading and writing errors, difficulty in ensuring data reading and control speed, slow communication speed of dual-port RAM, etc. , to achieve the effects of ultra-low power consumption, low data acquisition and transmission rate, and improved data transmission speed
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[0036] The present invention will be further described below in conjunction with the accompanying drawings.
[0037] attached figure 1 It is a structural schematic diagram of the present invention, composed of figure 1 It can be seen that the high-speed multi-channel current and voltage multiplexing acquisition unit includes a current / voltage acquisition unit composed of interconnected signal conditioning circuits and ADC sampling circuits, and also includes a backplane, and FPGA, DSP and clock modules installed on the backplane , There are multiple current / voltage acquisition units, all of which are connected to the FPGA, the FPGA is connected to the DSP, and the clock module is connected to the FPGA and the DSP respectively. Carry on data communication through LinkPort between PFGA and DSP.
[0038] attached figure 2 Schematic diagram of the signal conditioning circuit. The signal conditioning circuit includes a first resistor R1, a second resistor R2, a filter capacito...
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