Data processing device and gas conversion system

A gas conversion system, comprising:

• a gas converter configured to convert at least a part of an input gas into a first output gas, and output the first output gas;
• a first concentration sensor configured to detect a first concentration of a first target substance included in the first output gas and output a first concentration signal;
• a first flow rate sensor configured to detect a first flow rate of the first output gas and output a first flow rate signal;
• a data processing device;
• and
• a gas converter controller,
• the first concentration sensor including a first detection part including a first detection element, a second detection part including a second detection element, a third detection part including a third detection element, and a base,
• the base including a first base region, a second base region, and a third base region,
• a first gap being provided between the first base region and the first detection element,
• a second gap being provided between the second base region and the second detection element, and
• a third gap being provided between the third base region and the third detection element,
• wherein the data processing device comprises a processor configured to:
• acquire the first concentration signal from the first concentration sensor and the first flow rate signal from the first flow rate sensor;
• derive a first concentration value corresponding to the first concentration based on the first concentration signal;
• derive a first corrected conversion coefficient obtained by correcting a first conversion coefficient relating to a relationship between the first flow rate signal and the first flow rate based on the first concentration value;
• and
• derive a first flow rate value corresponding to the first flow rate based on the first flow rate signal using the first corrected conversion coefficient, and
• wherein the gas converter controller is configured to control the gas converter based on at least one of the first concentration value or the first flow rate value derived from the processor.