A multi-channel ad acquisition device that does not interfere with each other between multiple machines
A collection equipment, non-interference technology, applied in the field of multi-channel AD collection equipment, can solve problems such as sampling error, achieve the effect of improving function expansion, improving equipment reliability, and maintaining equipment inheritance
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[0032] In order to make the objectives, technical solutions and advantages of the present invention clearer, each embodiment of the present invention will be described in detail below with reference to the accompanying drawings.
[0033] Please refer to the following full text figure 1 , a multi-channel AD acquisition device that does not interfere with each other between multiple machines, which can support simultaneous sampling by multiple AD acquisition devices. The figure shows acquisition device 1 (108) and acquisition device K (109). Each AD acquisition device They all include an input terminal matching resistance-capacitance network 101 , a two-stage multiplexer switching circuit, a voltage follower 104 , an AD sampling circuit 105 , a sampling synchronization circuit 106 and an FPGA control circuit 107 .
[0034] The input terminal is matched with a resistance-capacitance network 101, which is used to perform RC filtering on the input analog signal, and realize multi-m...
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