四年前美国Accufiber公司研制成功高温光导纤维温度计,可用以测量难于测量的透平气体的温度。Dils测试了温度计的精确度和测量范围。他还提出温度计在其它方面的用途,例如测量汽车发动机燃烧室内的温度,由此可以验证发动机的效率。温度计使用了蓝宝石光导纤维棒,它的端部涂有由铱或铂或铅的氧化物的薄膜,形成一个黑体空腔。当这个黑体空腔被置于高温流体中,就辐 Four years ago, Accufiber Corporation of the United States successfully developed a high temperature optical fiber thermometer, which can be used to measure the temperature of the turbine gas that is difficult to measure. Dils tested the thermometer’s accuracy and measurement range. He also proposed other uses of the thermometer, such as measuring the temperature inside the combustion chamber of an automobile engine, from which the efficiency of the engine can be verified. The thermometer uses a sapphire optical fiber rod whose end is coated with a thin film of an oxide of iridium or platinum or lead to form a blackbody cavity. When this black body cavity is placed in high temperature fluid, it spoke