CHAPTER 11
Electromechanical Systems
The special music of physics lies in harmony between beautiful ideas and reality.—Frank Wilczek, Nobel Prize-winning physicist
In 1986, Coemar, an Italian theatrical lighting manufacturer, started producing a 350 W moving mirror fixture called the Robot. It had exactly five control channels: pan, tilt, color, gobo, and shutter. At about $2500 each, they were popular sellers in nightclubs with a moderate-to-large budget. They sold well in Europe and North America but after several months some of them started failing. After the initial batch of installations, it was learned that the plastic Airtronics servo motors driving all the motorized functions were only reliable to a point, and that point was usually ...
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