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一、空气负离子的物理性质及其产生机制空气是由无数分子组成的。由于自然界中宇宙线、紫外线、土壤和大气中放射线的影响,有些空气分子就放出电子。被释放出来的电子很快与空气中性分子结合成负离子(注),而剩余的阳电荷也与室气中性分子结合成正离子。因为这样的正、负离子很轻,所以也叫轻离子,其大小为10~(-7)厘米,在电场中运动较怏(1-2厘米/秒)。当遇到空气中的小灰尘、烟与小水滴时,轻离子就附着在这些物质上面而形成大气重离子,其大小为10~(-5)厘米,活动性小(0.0005厘米/秒)。还有一种是中离子,其大小为10~(-6)厘米,活动性介于上述两者之间。轻离子、重离子及中离子都包括正离子和负离
First, the physical properties of air negative ions and their mechanisms of production Air is composed of numerous molecules. Some air molecules emit electrons due to the radiation in cosmic rays, ultraviolet rays, soils and the atmosphere in nature. The released electrons quickly combine with the neutral molecules into negative ions (Note), and the remaining positive charges combine with the neutral molecules into positive ions. Because of this positive and negative ions are very light, it is also called light ions, the size of 10 ~ (-7) cm, in the electric field movement 怏 (1-2 cm / sec). When confronted with small dusts in the air, smoke and small drops of water, light ions attach to these substances to form atmospheric heavy ions, which are 10-5 cm in size and low in mobility (0.0005 cm / sec). Another is the ion, the size of 10 ~ (-6) cm, activity in between the two. Light ions, heavy ions and ions include positive ions and negative ions