Elcometer 公司推荐了精确和非破坏地测定表面膜厚的三种仪器,譬如测定铁或非含铁金属基体材料上的涂料、电镀、塑料、橡胶和环氧树脂的厚度。这些仪器就是通称的 Minitector 系列,每种仪器设计为承担特定范围的任务,用字母 F、N 和 FN 来表示。F 型测定磁基体上的非磁性膜,N 型用电学方法测定非含铁基体上的非传导膜,而 FN 型能测定以铁和非含 Elcometer recommends three instruments that accurately and nondestructively determine surface film thickness, such as the thickness of coatings, electroplating, plastics, rubber and epoxy on ferrous or non-ferrous metal substrates. These instruments are the so-called Minienceor series, each designed to take on a specific range of tasks, represented by the letters F, N and FN. F-type determination of non-magnetic film on the magnetic substrate, N-type non-ferrous conductive substrate determination of non-conductive film, and FN type can be measured with iron and non-containing