The structures of virtual roundness error measuring instrument, the data acquisition circuit of single chip microcomputer and the PC data processing software were introduced.
介绍了虚拟圆度误差测量仪的构成、单片机数据采集电路及PC机数据处理软件。
Using the CCD star tracker as the ships position measuring instrument is considered much for its high positioning accuracy. no position accumulated error, fast and intelligent work.
CCD星体跟踪器作为舰船位置测量仪器，因其定位精度高、无位置积累误差、快速和智能化工作而受到重视。
In this paper, we introduce the method to set up the measuring coordinate system and the analysis for the influence of the tip circle's error on the measuring accuracy of the portable instrument.
本文阐述了仪器测量时座标系的建立方法以及被测齿轮齿顶圆误差对测量精度影响的分析。
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