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一、前言 近年来,各种工业产品的大量生产和优质化,对所用原材料的精度和均一性,提出更严格的要求,以便提高成品的均一性和成品率。特别是对金属和非金属(玻璃,塑料等)板厚的精度和均一性提出严格要求,因此在这些生产线上实行某种厚度控制和检验。 测量板厚的装置有各种类型,其中利用放射线穿过物质,同时发生衰减的射线测厚仪,能够无接触、反应快、而且连续地
I. Introduction In recent years, the mass production and quality of various industrial products have come up with more stringent requirements on the accuracy and uniformity of raw materials used in order to improve the uniformity and yield of finished products. In particular, stringent requirements are placed on the accuracy and uniformity of metal and non-metal (glass, plastic, etc.) plate thicknesses, and therefore some thickness control and inspection is performed on these lines. There are various types of devices for measuring plate thickness, in which a radiation thickness gauge that uses radiation to pass through a substance and attenuates at the same time can contactlessly, react quickly, and continuously