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一、概述人们习惯于使用湿球和毛发湿度计测量空气的湿度,大多数药厂的粉针车间就用此方法检测湿度,但干湿表测量湿度存在如下缺点:(一)使用工作温度和测量湿度范围有限.(二)要通风、加水经常维护.(三)如果湿球通风不当,会造成相对湿度误差10％以上。(四)响应时间长.(五)生产干湿球表使用水银,有害健康. 目前,新发展起来的湿敏元件,提供了一种崭新的湿度测量方法,它完全能克服干湿球的局限性,我国已生产几种湿敏元件:(1)氯
First, an overview People are accustomed to the use of wet ball and hair hygrometer to measure the air humidity, most pharmaceutical companies use this method to detect the powder workshop humidity, but there are the following disadvantages of wet and dry table measurement of humidity: (a) the use of working temperature and Measurement of humidity range is limited. (B) To ventilation, water maintenance. (C) If the wet bulb is not properly ventilated, it will cause more than 10% relative humidity error. (D) a long response time (E) the production of wet and dry ball table using mercury, harmful to health.At present, the newly developed humidity sensor provides a new humidity measurement method, it can completely overcome the limitations of wet and dry bulb Sexually, our country has produced several kinds of humidity sensitive components: (1) Chlorine