A New Portable, PC Based, USB Powered Dynamic Signal Analyzer

摘要

A new USB-powered portable 4-channel real-time Dynamic Signal Analyzer and its automotive applications are described. The design and architecture lend themselves to real-time NVH measurements and analysis in the field, in-vehicle or on production lines. Built-in signal conditioning provides for direct sensor power while the embedded DSP provides for signal processing on-board. Performance and implementation of FFT, digital filters and order analyses are presented.