Thermal gas flowmeter with component compensation function and system thereof

The utility model discloses a thermal type gas flowmeter with a component compensation function and a system thereof. The thermal type gas flowmeter comprises a measuring probe rod, and a first sensor, a second sensor and a pneumatic piston which are sequentially arranged on the measuring probe rod side by side, the first sensor is arranged at the end part of the measuring probe rod; a first through hole is formed in the side wall of the measuring probe rod between the second sensor and the first sensor; the second sensor is embedded in the measuring probe rod, a first air cavity and a second air cavity are formed in the position where the second sensor is located, one side of the first air cavity is communicated with the pneumatic piston through a second through hole, the second sensor is arranged on the other side of the first air cavity, and the other side of the second sensor is communicated to the first through hole through the second air cavity. The constant flow velocity of the flow field in the second