A General Multi-channel Data Acquisition System
A data acquisition system and multi-channel technology, applied in the direction of electrical digital data processing, data processing input/output process, instruments, etc., to reduce power supply noise, ensure phase synchronization, and good real-time performance
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[0013] The present invention will be described in detail below in conjunction with the accompanying drawings and specific embodiments.
[0014] as attached figure 1 As shown, a general-purpose high-precision multi-channel data acquisition system is composed of an acquisition card and a main control card. The acquisition card collects analog signals from sensors and converts the analog signals into digital signals; the main control card is connected with the acquisition card. The data in the digital signal is denoised and filtered for real-time data correction; the host computer is connected to the main control card, and the configuration information is written from the main control card to realize the control of the entire system.
[0015] The block diagram of the acquisition card is attached figure 2 As shown, it includes input interface module 1, analog signal conditioning circuit module 2, analog-to-digital conversion module 3, reference voltage module 4, precision power ...
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