Abstract: DEVELOPMENT AND APPLICATIONS OF NEWTYPE ISOTOPE LEVELMETERS FOR CEMENT FACTORYSYang Shiqing Min Hainian Zhang Zhaoqing Fu Heping Dang CongjunWang Jingmin Xia Junming(Institute of Isotope, Henan Province Academy of Sciences,Zhengzhou 450052)ABSTRACTAccording to the situation of current domestic switch isotope levelmeters used for the level measurement and control in cement factorys, a new type isotope levelmeter is developed. The levelmeter includes digit display circuit, count detection and control circuit and two ways control export, its response time is less than 1 second. The quenching circuit in the detector lengthens the using lifespan of GM counter. The application in the factorys indicates that the levelmeter has the advantages of sensitive,strong antidisturbance, reliable and adjustment simplicity. The use of the levelmeter can make the better economy benefit and society benefit. Key words isotope levelmeter cement factory development application