摘要
测试了周围生活环境中的空气负离子浓度,并通过实验测试了衰减距离、摩擦、风速、温度、湿度等影响因素对材料产生负离子的影响.实验结果表明,周围生活环境中空气负离子浓度小于500个/cm3,外界空气负离子浓度大于1 500个/cm3,空气负离子在环境中的衰减距离为20cm左右.当临界风速处于3m/s^10m/s之间,风速的摩擦可以产生负离子;相对于摩擦,温度、湿度的变化对材料产生负离子的影响较小.
The concentration of negative air ions in the surrounding environment is tested. A series of experiment on influence to the anion emission measure of material by the decay distance, friction, wind velocity, temperature and relative humidity are carried on. The result indicates that the negative air ions amount in the surrounding environment is less than 500/cm3and the external environment is more than 1 500/cm^3. The decay distance of anion in the air is about 20 cm. When the critical wind velocity is between 3m/s and 10m/s, the friction of wind can produce anion. The effects on the anion emission measure by temperature and relative humidity are smaller than that by friction.
出处
《西安工程科技学院学报》
2007年第6期803-806,共4页
Journal of Xi an University of Engineering Science and Technology
关键词
空气负离子
影响因素
激发
相对湿度
negative air ions
influencing factor
excitation
relative humidity
