随着近代工农业生产的发展和科学技术的进步,特别是冶金、化学工业的飞速发展和原子能、火箭、超导等新技术的发展,对温度计量提出越来越高的要求。各工业发达国家的计量研究机构以及有关企业、公司都把测温技术作为重要的研究项 With the development of modern industrial and agricultural production and the progress of science and technology, especially the rapid development of metallurgy and chemical industry and the development of new technologies such as atomic energy, rocket and superconducting, more and more high demands are placed on temperature measurement. Metrology institutes in all industrialized countries, as well as related enterprises and companies, regard temperature measurement as an important research item