利用物体在高温状态下的热辐射作用来测量温度的仪器,已在工业方面广泛地应用,如光学高温度和辐射高温计,就都是利用热辐射作用的原理而投计成的。这种仪器可不与高温物体接触,而能测得它们的温度。光学高温计中的灯丝隐减型光学高温计,早已普遍应用於机械工厂的铸工车间,它的准确度高於辐射高温计,测量的温度范圉也广,而且使用简单,携带轻便。 Instruments that measure the temperature using the thermal radiation of an object at a high temperature have been widely used in industry, such as optical high temperature and radiation pyrometers, all of which are based on the principle of thermal radiation. Such instruments do not come into contact with hot objects and can measure their temperature. Optical filament pyrometer optical dimmer type optical pyrometer, has long been widely used in the foundry of the mechanical factory, its accuracy is higher than the radiation pyrometer, the measured temperature range is also wide, and easy to use, easy to carry.