For increased accuracy and repeatability, the unit can be supplied with an external anti-backlash POM (polymer) pinion gear which optimizes coupling to the wind turbine's large yaw bull gear.
This paper introduced the design, measurement accuracy and operation of the automatic external deformation monitoring system for dam slab and spillway of Lianhua hydropower station.
介绍莲花水电站大坝面板及溢洪道外部变形自动化监测系统设计、测量精度分析及运行情况。
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But, the accuracy of the count is affected by many factors, mainly by the interference of the external electromagnetic waves and the generation of the multi cathode spots.