这PXI-4462(零件号:779688-01, 779131-01)PXI声音和振动模块是一个动态信号采集或者目录系统代理(Directory System Agent)设备制造商国家文书。这PXI-4462非常适合各种应用，如环境噪声测试、旋转机械评估、音频评估、振动分析、机器状态监控、声学测量、噪声、振动和粗糙度测量等。这声音和振动模块具有24位分辨率和每秒204.8 kS的采样速率，能够同时采样和同步，并具有高性能的噪声、失真和动态范围。上更多有用的特性PXI-4462包括四通道动态信号采集和六个增益设置来配置输入范围。该器件的高通滤波器截止频率为3.4 Hz。

这PXI国家仪器公司-4462模块可以处理模拟输入的两种端子配置，即差分和伪差分。如果信号源悬空，伪差分配置是最佳选择。然而，如果信号源接地或以地为参考，则可以采用差分或伪差分配置。打开声音和振动模块后，它将自动配置为差分模式。

在……上PXI-4462声音和振动模块0 dB增益范围的模拟过载点约为10.7 Vpk，这是前端电路开始饱和时的电压。还有一个数字过载检测特性，它发生在模块修正增益和失调误差之前。自从PXI-4662在校正增益和失调误差之前发现过载，它还会捕捉ADC滤波器中的溢出设置。
NI-DAQmx驱动软件是主要的软件PXI-4462设备正在运行，并且应该在安装设备之前安装(驱动程序软件)PXI-4462).该器件与LabVIEW、LabWindows/CVI、Microsoft Visual C++、Microsoft Visual Basic、Borland C++和Microsoft .NET等软件包/应用开发环境(ade)兼容，可使用Measurement & Automation Explorer(MAX)工具进行配置。

PXI-4462

This PXI-4462 (part numbers: 779688-01, 779131-01) PXI sound and vibration module is a national document of a manufacturer of dynamic signal acquisition or directory system agents. This PXI-4462 is very suitable for various applications, such as environmental noise testing, rotating machinery evaluation, audio evaluation, vibration analysis, machine condition monitoring, acoustic measurement, noise, vibration, and roughness measurement, etc. This sound and vibration module has a 24 bit resolution and a sampling rate of 204.8 kS per second, enabling simultaneous sampling and synchronization, as well as high-performance noise, distortion, and dynamic range. More useful features on PXI-4462 include four channel dynamic signal acquisition and six gain settings to configure input range. The cut-off frequency of the high pass filter of this device is 3.4 Hz. This PXI National Instrument Company-4462 module can handle two terminal configurations for analog inputs, namely differential and pseudodifferential. If the signal source is suspended, pseudo differential configuration is the best choice. However, if the signal source is grounded or referenced to ground, differential or pseudo differential configurations can be used. After opening the sound and vibration module, it will automatically be configured to differential mode. The simulated overload point for the 0 dB gain range of the PXI-4462 sound and vibration module on… is approximately 10.7 Vpk, which is the voltage at which the front-end circuit begins to saturate. There is also a digital overload detection feature that occurs before the module corrects gain and offset errors. Since PXI-4662 detects overload before correcting gain and offset errors, it also captures overflow settings in the ADC filter. The NI-DAQmx driver software is the main software PXI-4462. The device is running and should be installed (driver software) PXI-4462 before installing the device. This device is compatible with LabVIEW, LabWindows/CVI, Microsoft Visual C++, Microsoft Visual Basic, Borland C++, and Microsoft NET and other software packages/application development environments (ADEs) are compatible and can be configured using Measurement&Automation Explorer (MAX) tools.

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