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随着现代科学技术的发展,迫切需要对湿度这一物理量进行自动检测和控制.这就要求研制出将空气中的湿度变化直接转换成电信号的湿度敏感元件,即湿度传感器.将湿度传感器与计算机配合就能组成湿度自动检测及控制系统.表面为多孔结构的半导体陶瓷吸附水分子后,其电导率将增加,根据这一原理可以制成湿度敏感元件.
With the development of modern science and technology, there is an urgent need to automatically detect and control the humidity, which requires the development of a humidity sensor that converts humidity changes in the air directly into electrical signals, Computer with the composition of the humidity can automatically detect and control system.On the surface of the porous structure of the semiconductor ceramic adsorption of water molecules, the conductivity will increase, according to this principle can be made of humidity-sensitive components.