基于FPGA的便携式RLC参数测量仪

Portable RLC Parameter Measurement Instrument Based on FPGA

介绍了一种新型的数字式便携RLC参数测量仪。它采用直接频率合成(DDS)技术,由FPGA直接生成测量所需的正弦波数字信号;选择自由轴伏安法测量原理,配合五端测量法来保证测量电路简洁高效;设计了全新的数字式全波鉴相器,提高了鉴相精度;高速AD采样配合FPGA进行数据采集与处理,使整个系统体积小,运行速度快,测量精度高,满足复杂场景与功能的设计要求。

This paper introduces a newtype of digital portable RLC parameter measurement instrument.It uses direct frequency synthesis （DDS） technology,composed of FPGA direct generation measuring the sine wave digital signal.Freedom of choice shaft voltammetry measurement principle,with five end measurement method to ensure the measurement circuit concise high efficient.Design a new digital full wave phase discriminator and improve the precision of phase.High-speed AD with FPGA for data acquisition and processing.