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High precision electronic automatic self leveling systerm for working platform based on CDC technology
Author(s): 
Pages: 145-147
Year: Issue:  12
Journal: ELECTRONIC MEASUREMENT TECHNOLOGY

Keyword:  自动安平CDC高精度低成本;
Abstract: 为了设计一种低成本、高精度的工作平台电子自动安平系统,本文选用高灵敏度电容式倾角传感器对工作平台倾斜度进行实时监测,利用高集成度电容数字转换器(CDC)芯片AD7746直接将传感器的电容信号转换成数字量,通过I2C总线交由高性能单片机ADuC841处理.单片机通过自带的双路PWM输出对直流电机进行PID调速,调节扫平台倾斜度,使其保持水平,实现仪器自动安平功能.本文的电子自动安平系统具有实现简单、灵敏度高的优点,可应用在许多仪器及设备中.
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