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一种涡流传感器恒流驱动电路设计

更新时间:2020-08-28 01:14:02 大小:349K 上传用户:zhiyao6查看TA发布的资源 标签:涡流传感器驱动电路 下载积分:5分 评价赚积分 (如何评价?) 打赏 收藏 评论(0) 举报

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针对现有涡流传感器采用开环恒压驱动方式驱动,存在驱动电流受电路温漂和负载变化影响的问题,设计了一种应用线性控制理论的涡流传感器恒流驱动电路。详细介绍了该电路的各模块及多输入单输出反馈控制系统应用电路的设计。仿真和电路试验结果表明,相比于传统的涡流传感器开环恒压驱动电路,该电路不仅能提供恒定驱动电流,还具有较小的温漂及较强的负载变化能力。

In view of problems that using open-loop constant voltage to drive eddy current sensor maysuffer from drive current variation with temperature drift and load change,a constant current driving circuit of eddy current sensor using linear control theory was designed.The design procedure for module circuit and application circuit based on multiple-input single-output feedback control system were introduced in details.The simulation and testing results show that the circuit not only can provide constant drive current,but also has characteristics of smaller temperature drift and stronger adaptability of load variation compared with traditional open-loop constant voltage driving circuit of eddy current sensor.

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一种涡流传感器恒流驱动电路设计.pdf 349K

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