NI-9234是一款4通道C系列动态信号采集模块，专门针对配备NI CompactDAQ或NI CompactRIO系统的集成电路压电式(IEPE)与非集成电路压电式(IEPE)传感器进行高精度音频测量。

该模块具有以下特点：

1. 高精度测量：针对IEPE和非IEPE传感器，NI-9234能够进行高精度的音频测量，满足各种应用需求。
2. 4通道采集：模块具有4个输入通道，可以同时采集多个传感器的信号，提高系统的测量效率。
3. 自动调节采样率：内置抗混叠滤波器，并根据输入信号自动调节采样率，确保信号的完整性和准确性。
4. 软件支持：NI声音与振动分析软件提供了信号处理功能，用于声音测量、分数倍频程分析、频率分析、瞬态分析和阶次跟踪。这使得用户能够方便地对采集的数据进行处理和分析。
5. 便携式设计：NI-9234采用便携式设计，方便用户在现场进行测量和数据采集。

总之，NI-9234是一款功能强大、性能稳定的振动采集模块，适用于各种工业自动化和控制系统中的振动测量和分析应用。

NI-9234 is a 4-channel C-series dynamic signal acquisition module specifically designed for high-precision audio measurement of integrated circuit piezoelectric (IEPE) and non integrated circuit piezoelectric (IEPE) sensors equipped with NI CompactDAQ or NI CompactRIO systems.

This module has the following characteristics:

High precision measurement: For both IEPE and non IEPE sensors, NI-9234 can perform high-precision audio measurements to meet various application requirements.

4-channel acquisition: The module has 4 input channels and can simultaneously collect signals from multiple sensors, improving the measurement efficiency of the system.

Automatic adjustment of sampling rate: Equipped with an anti aliasing filter, the sampling rate is automatically adjusted based on the input signal to ensure signal integrity and accuracy.

Software support: The NI sound and vibration analysis software provides signal processing functions for sound measurement, fractional octave analysis, frequency analysis, transient analysis, and order tracking. This enables users to conveniently process and analyze the collected data.

Portable design: The NI-9234 adopts a portable design, making it convenient for users to measure and collect data on site.

In summary, NI-9234 is a powerful and stable vibration acquisition module suitable for vibration measurement and analysis applications in various industrial automation and control systems.