我国南方夏季持续时间长,气候多变及雨水多,在居室外设置一个电路(如图1所示)的下雨告知器,将会给你的生活带来很大的方便和帮助。图1A、B 两端接入一个电极装置(构造见图2所示),它可用直径约1mm 的漆包线(去掉外层绝缘并镀上一层焊锡)焊接而成。然后固定在环氧树脂板上,两漆包线的间距为1～2 mm,整个电极的具体尺寸可根据使用情况确定。或可用环氧铜箔印制板刻制成图 In the south of our country, the rainy season is long, the climate is changing and there is a lot of rain. To set up a circuit for rain (as shown in Figure 1) outside the home, it will bring great convenience and help to your life. An electrode assembly (shown in Fig. 2) is connected to both ends of Fig. 1A and Fig. B. It can be soldered with an enameled wire of approximately 1 mm in diameter (with insulation removed and plated with a layer of solder). Then fixed on the epoxy board, two enameled wire spacing of 1 ~ 2 mm, the specific size of the entire electrode can be determined according to usage. Or epoxy copper foil can be engraved into a map