In the paper, the calculating method of signal extraction filter pass-band according to the paper-counting speed and the utility circuit of separating strong interference in pass-band are given.
并针对点钞速度给出了信号提取滤波器通频带的计算方法，以及在带内分离强干扰的实用电路。
The circuit has a characteristic of high accuracy of voltage transfer and current transfer, simple structure, easy realization, low cost, and good utility.
该电路具有电压传输和电流传输的精度高、结构简单、易于实现及成本低廉且实用性好的特点。
In this paper, the utility of PIC Microcomputer in the logging tool is introduced. The frame and the circuit of multiplexed logging are given.
介绍PIC单片机在多参数组合测井仪中的应用，给出多参数组合测井仪的原理框图和电路设计。
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