Signal sampling system suitable for multi-unit gas sensor array

The invention discloses a signal sampling system suitable for a multi-unit gas sensor array, and belongs to the field of gas sensor signal sampling, the signal sampling system comprises a control circuit subsystem, a test loop subsystem and a power supply subsystem, the control circuit subsystem comprises a control terminal, a central control chip and a multiplexing chip, the control terminal is connected with the central control chip through a data line, the multiplexing chip is connected with the central control chip, the test loop subsystem comprises a secondary control circuit, a multi-unit gas sensor array test chamber and a data acquisition module, the secondary control circuit is connected with the multiplexing chip and the multi-unit gas sensor array test chamber, the data acquisition module is connected with the control terminal and the multi-unit gas sensor array, and the power supply subsystem is communicated with the control circuit subsystem. The complex signal sampling system is reasonable in de