在国民经济中广泛地采用保护镀层和装饰镀层,因此需要建立能用非破坏性方法测量镀层厚度的仪器。其中就有电磁式镀层测厚仪。已知用两种方法检定电磁式镀层测厚仪。第一种方法是用鉴定过的量具。但是,要制造这种在整个工作面积上具有均匀的规定 Protective coatings and decorative coatings are widely used in the national economy, and therefore, it is necessary to establish an instrument that can measure the coating thickness in a non-destructive way. Among them there are electromagnetic coating thickness gauge. Two methods are known for verifying electromagnetic coating thickness gauges. The first method is to use a certified gage. However, there is a need to make this uniform throughout the work area