NI PXIe-4468 是一款高性能的 PXI 聲音與振動(dòng)模塊，專為高精度測(cè)量設(shè)計(jì)，適用于麥克風(fēng)、加速度計(jì)和其他具有大動(dòng)態(tài)范圍的傳感器。以下是其主要特點(diǎn)和功能：
高精度測(cè)量：PXIe-4468 專為滿足各種聲音和振動(dòng)應(yīng)用的需求而設(shè)計(jì)，包括音頻測(cè)試、汽車NVH和機(jī)器狀態(tài)監(jiān)測(cè)。
雙通道動(dòng)態(tài)信號(hào)生成和采集：該模塊提供了雙通道動(dòng)態(tài)信號(hào)生成和雙通道采集，能夠滿足各種測(cè)試要求。
多種增益設(shè)置：PXIe-4468 提供六種增益設(shè)置，用戶可以根據(jù)應(yīng)用程序的特定要求定制模塊的輸入范圍。
AC/DC耦合和IEPE調(diào)理：模塊具有軟件可配置的AC/DC耦合、IEPE調(diào)理和純單頻發(fā)生器，確保使用麥克風(fēng)、加速度計(jì)及其他傳感器進(jìn)行精確的測(cè)量。
差分放大器輸出：PXIe-4468 的輸出級(jí)是一個(gè)差分放大器，可以在軟件中配置為偽差分模式，提供最佳性能。
內(nèi)置音調(diào)發(fā)生器：該模塊還具有內(nèi)置音調(diào)發(fā)生器，使其成為聲音和振動(dòng)測(cè)試要求的全面和單一的解決方案。
軟件支持：PXIe-4468 支持 NI-DAQmx 驅(qū)動(dòng)程序和配置實(shí)用程序，簡(jiǎn)化了配置和測(cè)量過程。NI-DAQmx 支持 NI 編程環(huán)境以及 Python、ANSI C、C# 和 MathWorks MATLAB? 軟件。
應(yīng)用領(lǐng)域：PXIe-4468 可用于音頻測(cè)試、汽車噪聲、振動(dòng)和聲振粗糙度(NVH)、機(jī)器狀態(tài)監(jiān)測(cè)等聲音和振動(dòng)應(yīng)用程序。
The NI PXIe-4468 is a high-performance PXI sound and vibration module designed for high-precision measurement and is suitable for microphones, accelerometers and other sensors with a large dynamic range. The following are its main features and functions:
High Precision measurement: The PXIe-4468 is designed to meet the needs of a variety of sound and vibration applications, including audio testing, automotive NVH and machine condition monitoring.
Dual channel dynamic signal generation and acquisition: This module provides dual channel dynamic signal generation and dual channel acquisition, which can meet various test requirements.
Multiple gain Settings: The PXIe-4468 offers six gain Settings that allow users to customize the input range of the module according to the specific requirements of the application.
AC/DC coupling and IEPE conditioning: The module features software-configurable AC/DC coupling, IEPE conditioning, and a pure single-frequency generator to ensure accurate measurements using microphones, accelerometers, and other sensors.
Differential Amplifier output: The output stage of the PXIe-4468 is a differential amplifier that can be configured in the software in pseudo-differential mode to provide the best performance.
Built-in tone generator: The module also has a built-in tone generator, making it a comprehensive and single solution for sound and vibration test requirements.
Software support: The PXIe-4468 supports NI-DAQmx drivers and configuration utilities, simplifying the configuration and measurement process. Ni-daqmx supports the NI programming environment as well as Python, ANSI C, C# and MathWorks MATLAB? software.
Applications: The PXIe-4468 can be used in audio testing, automotive noise, vibration and acoustic roughness (NVH), machine condition monitoring and other sound and vibration applications.
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