| 一种地面电场仪的自检电路 |
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| 引用本文： | 王 敏,周树道,陈加清.一种地面电场仪的自检电路[J].机械与电子,2014(1):29-31. |
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| 作者姓名： | 王 敏 周树道 陈加清 |
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| 作者单位： | 解放军理工大学气象海洋学院,江苏南京211101 |
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| 基金项目： | ：国家自然科学基金资助项目（41301370） |
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| 摘 要： | 设计了一种地面电场仪的自检电路,对电场仪测量的电场值精度进行自动监测,保证其探测稳定性。电路由顺序连接的电场仪控制器、D/A转换器、模拟开关、放大器和标定电极板等组成,将标定电极板生成的电场值与电场仪实测电场值进行比较,检测二者误差是否在精度范围内,从而实现自检功能。
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| 关 键 词： | 地面电场 自检 D/A转换 标定电极板 |
A Self - Test Circuit of Ground Electric Field Instrument |
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| Affiliation: | WANG Min, ZHOU Shu - dao, CHEN Jia - qing (Institute of Meteorology and Oceanography,PLA University of Science and Technology, Nanjing 211101 ,China) |
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| Abstract: | A self- test circuit of ground electri- cal field instrument is designed, which can auto- matic monitoring the accuracy of the measured e- lectric field value of the electric field instrument to ensure the detection stability. The circuit formed connecting by the electric field instrument control- ler, D/A converter, analog switch, the amplifier, and the calibration electrode plate, the value of the electric field generated by the calibration electrode plate is compared with the measured values, to dis- cover the error is whether within the range of accu- racy,in order to achieve the self- test function. |
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| Keywords: | ground electrical field self - test D/A converter calibration electrode plate |
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