Detection system and detection method for output of gas sensor array based on single chip microcomputer
A gas sensor, output detection technology, applied in general control systems, control/regulation systems, instruments, etc., can solve the problems of large noise interference, large measurement errors, low precision, etc., to improve detection resolution, suppress high-frequency signals Effects of Interference and Common Mode Interference
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[0036] The technical solution of the present disclosure will be described in detail below with reference to the drawings and embodiments.
[0037] see figure 1 , the disclosure provides a single-chip microcomputer-based gas sensor array output detection system, including: an analog circuit part and a digital circuit part; wherein,
[0038] The analog circuit part includes:
[0039] A power module, configured to supply power to the detection system;
[0040] Standard resistive voltage divider module, used to convert sensor array output signal into easy-to-measure single-ended analog voltage signal;
[0041] A signal filtering module, configured to filter out high-frequency interference signals in the single-ended analog voltage signal;
[0042] A single-ended to differential module, configured to convert the single-ended analog voltage signal into a differential analog voltage signal;
[0043] an analog-to-digital conversion module, configured to convert the differential an...
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Abstract
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