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中文摘要：
针对无人机综合测试系统的测试要求，设计出一种数字式的电流传感器。文中介绍了数字电流传感器的设计思路与基本组成，通过对被测物理量的分析给出了硬件设计和软件设计。硬件设计主要分析了测量原理并对元器件的选取给与详细的介绍;软件设计主要对A／D转换作了详细的分析。通过对传感器的测试得出试验数据。误差分析表明：文中给出的数字电流传感器设计合理，精度满足系统指标要求，可推广应用于其它领域的数字测量系统。
英文摘要：
A digital current sensor for UAV testing requirements, is designed. This paper introduces the digital current sensor design and basic components, and gives hardware design and software design by the analysis of physical quantities. Hardware design mainly analyses the measurement principle and gives a detailed presentation on the choosing components; software design focused on A / D converter makes detailed analysis. Test data is obtained though the test of the sensor. Error analysis showed that digital current sensor has reasonable design and accuracy to satisfy the requirements of indicators. It also can be applied to other areas of digital measurement system.
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