National Instruments has announced four new C Series modules for datalogging applications including vibration/ acoustical data-logging and in-vehicle, structural, temperature and pressure testing. The NI USB-9219, USB-9229 and USB-9239 provide USB bus-powered connectivity to the C Series while the NI 9234 AC/DC-coupled dynamic signal acquisition module offers selectable IEPE signal conditioning for engineers measuring high-accuracy audio frequency.
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机译：美国国家仪器公司宣布了四个新的用于数据记录应用的C系列模块，包括振动/声学数据记录以及车载，结构，温度和压力测试。 NI USB-9219，USB-9229和USB-9239提供与C系列的USB总线供电连接，而NI 9234 AC / DC耦合的动态信号采集模块为工程师提供了可选的IEPE信号调理，以测量高精度音频。
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