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研究设计了基于USB实时数据采集系统,,围绕设计目标,从整体方案、控制芯片及传输类型方面进行了优化、开发了USB设备驱动程序和PC机Windows应用程序。为验证所设计的采集系统是否达到实际要求,采用实测的方式进行测试研究。测试结果表明,本采集系统实现了对规定瞬态信号的实时数据采集,采样精度12bit,工作稳定可靠,达到了研发一套性价比高、功能强、功耗低、方便易用等特点的瞬时数据采集系统的目的。
The USB-based real-time data acquisition system was researched and designed. The design goals were optimized from the aspects of overall scheme, control chip and transmission type. USB device drivers and PC Windows applications were developed. In order to verify whether the designed acquisition system meets the actual requirements, the test is conducted by means of actual measurement. The test results show that the acquisition system realizes the real-time data acquisition of the specified transient signal, the sampling precision is 12bit, the work is stable and reliable, and a set of instantaneous data such as high cost performance, low power consumption, The purpose of the acquisition system.