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美国标准局(NBS)研制成功了由一种单晶兰宝石制成的新式高温光导纤维温度计,科学家与工程师们可用该仪器测量高至2000℃的温度——比现有的热电偶标准的最高使用温度高了500℃。该仪器可望比现有标准高10倍的精度。因为这种新式温度计精度和稳定度都高,最终可能取代美国国家标准协会(ANSI)S 型热电偶(目前作为国际实用温标从630.74
The United States Bureau of Standards (NBS) has developed a new high-temperature fiber optic thermometer made of a single crystal sapphire that scientists and engineers can use to measure temperatures up to 2000 ° C - the highest than existing thermocouple standards High temperature of 500 ℃. The instrument is expected to be 10 times more accurate than existing standards. Because of the high accuracy and stability of this new thermometer, it may eventually replace the American National Standards Institute (ANSI) Type S thermocouple (currently available as an international utility temperature gauge from 630.74