| The design of Intelligent Height Measuring System on Virtual Instrument is described in detail in the paper. And the paper focuses on the system design requirements and scheme, the working principle of the optical grating ruler, the sense finding and digital subdivision technology for the grating Moire fringe signal, and the hardware and software design of the system. In addition to that, the analysis on the system error and some anti-interference measurements taken by the system are also presented. The system designed basically satisfies the system design requirements and the resolution of the system is lum. And the system can fulfill the data acquisition, display, power-off protection and storage of the height. |
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