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目前,国内外生产的大多数膜厚控制仪,在表盘的应用上大致分为两类:一类是调零时使表针停在表盘的中间位置,表针每挡的行程为表盘满刻度的一半;另一类是调零时使表针调在零点,表针每挡的行程为表盘的满刻度。测量精度优于1％。我们试制的膜厚控制仪——双晶体膜厚控制仪,表针每挡行程为表盘满刻度的二倍。经电子工业部召开的全国鉴定会议认为,该仪表使用精度高,重复精度好,能满足生产需
At present, most of the thickness control instruments produced at home and abroad can be roughly divided into two types in the application of the dial: one is to stop the dial in the middle of the dial when zeroing, and the travel of each dial is half the dial full scale ; The other is to adjust the zero when the needle is adjusted to zero, the needle table for each stroke of the dial full scale. Measurement accuracy better than 1%. Our trial of the thickness control device - dual-crystal film thickness control device, the needles of each stroke of the dial full scale twice the scale. The Ministry of Electronics Industry held a national appraisal meeting that the high accuracy of the instrument, repeat accuracy, to meet the needs of production