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The sensor is composed of pyroelectric refrigerator and semiconductor detector, and controlled by a operator without model, In this way the air dew-point can be measured on line. 使用金硅勢(shì)壘探測(cè)器及熱電式致冷器構(gòu)成傳感器，并利用無(wú)模型控制器進(jìn)行控制，實(shí)現(xiàn)氣體露點(diǎn)的在線檢測(cè)。