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首页> 外文期刊>Chinese science bulletin >Humiditive sensing properties of LiCl/SiO_2 porous thin films
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Humiditive sensing properties of LiCl/SiO_2 porous thin films

机译：LiCl / SiO_2多孔薄膜的湿敏特性

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摘要

The development and investigation of humidity sensing materials is a very imporant branch for research field of sensors and actuators. With respect to materials, the humidity sensors are usually classified into three kinds: electrolytes, polymers andporous ceramics. Lithium chlorite is a typical electrolyte as humiditive sensor and has been used practically since the 1970s. The preparing procedure is as follows: to LiCl solution was proportionally added PVA solution to make a mixed solution. From the solution, a thin film could be formed by means of dip-coating method. By adjusting the proportion of LiCl and PVA, varous films might be fabricated, which were sensitive to humidity in different RH ranges. To make a component which is expected to be sensitive from lower to higher relative humidity, those films must be assembled in series. Then the sensors are very expensive in cost. So they are rarely used in daily life; they are only used by the military.
机译：湿度感测材料的开发和研究是传感器和执行器研究领域的重要分支。关于材料，湿度传感器通常分为三种：电解质，聚合物和多孔陶瓷。亚氯酸锂是一种典型的电解质，用作湿度传感器，自1970年代以来已被实际使用。制备步骤如下：向LiCl溶液中按比例加入PVA溶液制成混合溶液。从溶液中，可以通过浸涂法形成薄膜。通过调整LiCl和PVA的比例，可以制得对不同RH范围的湿度敏感的各种薄膜。为了制造预期在较低至较高的相对湿度下敏感的组件，必须将这些薄膜串联组装。然后，传感器的成本非常昂贵。因此它们很少在日常生活中使用。它们仅由军方使用。

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