利用VB开发的基于PC机的列车空调压缩机测试系统，采用串口通讯技术进行数据采集与分析。
With the application of serial communication technology in data acquisition and data analysis, the compressor testing system based on PC for the train air conditioning was developed with VB.
本课题基于无位置传感器技术，对应用于空调压缩机的无刷直流电动机系统做了一定的理论分析并进行了设计与实验测试。
Based on sensorless technology, the thesis has done some analysis theoretically and designed and tested the system of BLDCM used on air-conditioning compressor.
以制冷压缩机的性能测试为线索，本人对压缩机行业的现况进行了介绍，封闭压缩机的技术特点进行了说明。
With the main line of compressors performance test, I give an introduction for air-conditioning compressors factories, hermetic compressors technology's analysis.
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