美国燃烧工程公司研制出一种对可见光敏感的火焰扫描器,可应用于工业锅炉。据称其跟踪响应曲线类似于人眼。这种由光纤和固体电路混合而成的Safe Scan Ⅰ型扫描器与普通的紫外线扫描器相比,优点甚多。当在燃煤锅炉中使用这种扫描器时,可省去为防止产生虚假的“无火焰”报警而增添的辅助燃料。该扫描器用于燃油锅炉时,比紫外线扫描器性能要好。在燃气锅炉中, American Burning Engineering Corporation has developed a visible light-sensitive flame scanner that can be used in industrial boilers. The tracking response is said to be similar to the human eye. This Safe Scan Ⅰ scanner, which is a combination of fiber and solid-state circuitry, has many advantages over conventional UV scanners. When using this type of scanner in a coal-fired boiler, additional fuel added to prevent false “flame-free” alarms can be dispensed with. When used in oil-fired boilers, the scanner performs better than UV scanners. In gas boilers,