本帖最后由 动静之机 于 2016-3-21 09:48 编辑
该书的特点就是，没有标准答案，得自己悟。。。。
幸运的是网上有很多关于电弧灯的历史可以参考。
http://blog.sina.com.cn/s/blog_7ca9fb800101qp9m.html
亚布洛奇科夫（1847—1894）俄国电工技师。他29岁时获得了电弧灯——第一个电光源的专利权。这种灯被誉为“俄国之光”，几乎照亮了世界各国的首都。
http://www.ck365.cn/baike/1/1723.html
此后，俄国人雅布洛奇科夫(Jablochkoff)发明的“电烛”问世。它的做法是用绝缘的熟石膏将两个炭极隔开。当“电烛”被点燃时，绝缘层就与炭棒同速燃烧发出白炽光。从本质上看，这种“电烛”也是一种电弧灯，只是稍省些电。雅布洛奇科夫“电烛”在 1877 年被用作巴黎的歌剧院门前大道的照明，和伦敦泰晤士河岸的部分照明，但是这种“电烛”不能持久，最长也只能用两个小时。
某某百科的鸟语内容（中文的哪去了。。。http://www.ltaaa.com/bbs/thread-347375-1-1.html）：
https://en.wikipedia.org/wiki/Yablochkov_candle
A Yablochkov candle consists of a sandwich of two long
carbonblocks, approximately 6 by 12 millimetres in cross-section, separated by a block of inert material such as
plaster of parisor
kaolin. There is a small piece of fuse wire or carbon paste linking the two carbon blocks at the top end. The assembly is mounted vertically into a suitable insulated holder.
On application of the electric supply, the fuse wire 'blows' and strikes the arc. The arc then continues to burn, gradually consuming the carbon electrodes (and the intervening plaster) as it does so. The first candles were powered by a
Gramme machine. 开始供电的那一瞬，引燃丝熔断并点燃电弧。电弧持续燃烧，逐渐烧蚀碳棒（和中间的熟石膏），电烛早先时候由gramme直流电机供电。
Electrodes last about two hours or until the power is cut. A classic Yablochkov candle cannot be relit, since the fuse wire between the electrodes has been consumed. Later versions of the candle, however, included powdered metal in the inert separator. This would act as a new fuse wire, allowing a half-burnt candle to be restarted once extinguished.电极的寿命大约2小时，或者因断电提前挂掉。早期的雅布洛奇科夫电烛不能重新点燃， 因为顶端的引燃丝已经（在上一次点燃时）用掉了。后续的版本在中间的绝缘体中掺杂了金属粉末，充当了新的引燃丝，可以让中途熄火的电烛重新启用。
The advantage of the design over other carbon arc designs is that it removes the need for a mechanical regulator to maintain the appropriate distance between the carbon blocks to sustain the arc.与其他碳棒电弧（灯）设计相比，该设计的先进之处是取消了用于调节碳棒间距以维持电弧的机械调节机构。
http://www.edisontechcenter.org/ArcLamps.html这里比较详细地介绍了一些照明灯具的历史，能看到各种恐龙级调节机构。
关于亚布洛奇科夫的部分：
Left: the Yablochkov (Jablochkoff) candle was the first product, it had two carbon rods side by side (see illustration) separated by a laster, it burned down from the top with the arc begin kept at the idea gap width. This was a way to get around the problem of feeding two carbon rods together in the regular lamp model. It was a simple operation to replace the rods when finished. The device produced an unsteady light that would range from dark purple to bright white. Sometimes it went out, which would lead to the entire series of lamps (up to six) going out. But it was a important step and the first commercially successful electric light.
毛熊的民族性格可能是将各种复杂的解决方案认为是“技术恐龙”，总希望寻找一种“一击命中”的解决之道， 很多时候确实高效。
比如太空笔的故事， 西方公司投巨资研发，又是充气，又是密封，千百次试验，终于成功。 毛熊说，俺用铅笔（原意）中不中？
然而谁能走的更远， 大家都看到了。
有点遗憾的是国内的多为“描述”，国外的就详细得多。
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楼主:
哎呦喂蛋蛋
楼主
发表于 2016-3-21 09:16:28
