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 present disclosure provides a single chip microcomputer-based gas sensor array output detection system, including: an analog circuit part and a digital circuit part; among them,
[0038] The analog circuit part includes:
[0039] The power supply module is used to supply power to the detection system;
[0040] Standard resistance voltage divider module, used to convert the output signal of the sensor array into a single-ended analog voltage signal that is easy to measure;
[0041] A signal filtering module for filtering out high-frequency interference signals in the single-ended analog voltage signal;
[0042] The single-ended to differential module is used to convert the single-ended analog voltage signal into a differential analog voltage signal;
[0043] An analog-to-digital conversion module for converting the differentia...
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