日本松下精工和日本照相机公司联合研制出一种固体电介质CO_2传感器,其体积比用于测定气体质量的一般红外线吸收型小得多。这种器件在日本一般用在空调系统的通风量指示器中。此传感器没有光学系统,所以可在被污染的环境下使用。外形尺寸20mm(Φ)×30mm,检测精度3000ppm±50ppm。据称,它的寿命是一般产品的5倍。 Japan’s Panasonic Seiko and Japan Camera Co jointly developed a solid-state dielectric CO_2 sensor, the volume is much smaller than the general infrared absorption used to determine the gas quality. This type of device is generally used in Japan as a ventilation indicator for air conditioning systems. This sensor has no optical system so it can be used in a contaminated environment. Dimensions 20mm (Φ) × 30mm, the detection accuracy of 3000ppm ± 50ppm. Allegedly, its life expectancy is 5 times the normal product.