近几年来国內很多科学研究单位和企业正在进行同位素測厚仪的試驗研究工作。現将收集到的一些有关四輥可逆带材冶軋机的同位素測厚仪的国外資料整理出来供有关人員参考。在本文中只是对苏、英、美、西德和日本等国生产这类测厚仪的情况作一概要的介紹。虽然在带材軋制过程中采用厚度測量仪来实現連續自动測量在国外已有20多年的历史。但采用放射性同位索測厚仪还只是最近十几年以前的事。 In recent years, many domestic scientific research units and enterprises are carrying out experimental research of isotope thickness gauge. Now collected some of the four-roller reversible strip mills isotope thickness gauge of foreign information sorted out for reference. In this article, we only give an overview of the production of such gages in countries such as the Soviet Union, the United Kingdom, the United States, West Germany and Japan. Although in the strip rolling process using thickness gauge to achieve continuous automatic measurement in foreign countries for more than 20 years of history. However, using radio isotope gages is only a matter of the last decade or so.