卤钨灯发光原理

所有白炽灯的发光原理都是利用物体受热发光原理和热辐射原理而实现的，最简单的白炽灯就是给灯丝导通足够的电流，灯丝发热至白炽状态，就会发出光亮，但这种白炽灯的寿命会相当相当的短。

目前我们见到的白炽灯之所以采用了以下各种技术，其目的都在于使得白炽灯具有更长的寿命和使用起来更加方便：真空玻璃管(减少灯丝氧化程度)、灯脚(便于你将灯泡插在灯座上)、填充惰性气体(减少灯丝在高温下的氧化程度)等等。

Turbine Flow Meter

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