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Improved Feedback Amplifier for Electromagnetic Induction Sensors

机译:改进的电磁感应传感器反馈放大器

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摘要

A method using feedback is presented that reduces several measurement errors inherent in electromagnetic induction sensors. Errors associated with coupling between receive coils and errors associated with operating near magnetic soils will both be reduced. The method uses feedback that is directly injected into the receive coils and does not require secondary coils. A simple circuit is introduced to perform the feedback and is optimized to reduce the errors and make the circuit stable. Experimental results are presented to show the effectiveness of the feedback.
机译:提出了一种使用反馈的方法,该方法可减少电磁感应传感器固有的几种测量误差。与接收线圈之间的耦合相关的误差和与在磁性土壤附近工作相关的误差都将减少。该方法使用直接注入接收线圈的反馈,不需要次级线圈。引入了一个简单的电路来执行反馈,并对其进行了优化以减少误差并使电路稳定。实验结果表明了反馈的有效性。

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