光电技术应用, 2009, 24 (6): 51, 网络出版: 2010-05-10
基于线性光耦HCNR201双极性信号隔离电路
Design of Isolated Circuit of Bipolar Signal Based on Linear Optocoupler HCNR201
摘要
在瞬变电磁勘探中，需要在高压强电磁环境下采集电磁信号进行反褶积运算.如果模拟量与数字量之间没有电气隔离，那么高压很容易窜入低压器件并将其烧毁.设计了一个基于高精度线性光耦器件HCNR201双极性信号隔离转换电路，并介绍了高精度线性光耦器件HCNR201的主要特性及工作原理.应用于实际仪器的实验结果表明，该电路具有良好的线性度、准确度和适用性.
Abstract
Data acquisition in transient electromagnetic method(TEM) is in a high voltage and strong electromagnetic field. If there is not electric isolation between analog quantity and digital amount, the high voltage is easy to entry in the low voltage device and destroy it. A bipolarsignal isolation circuit was designed based on the features of the highlinearity optocoupler HCN201, and the working principle and the features of the highlinearity optocoupler HCN201 were introduced. The experimental results show the circuit has the better linearity, high acuracy and practicability in TEM system.
杨居朋, 王军民, 刘迪仁. 基于线性光耦HCNR201双极性信号隔离电路[J]. 光电技术应用, 2009, 24(6): 51. YANG Jupeng, WANG Junmin, LIU Diren. Design of Isolated Circuit of Bipolar Signal Based on Linear Optocoupler HCNR201[J]. Electro-Optic Technology Application, 2009, 24(6): 51.
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