NI-9231

The NI-9231 is a high-density sound and vibration module that can measure signals from integrated electronic piezoelectric (IEPE) and non-IEPE sensors such as accelerometers, tachometers, and proximity probes. It can perform the high dynamic range measurements necessary for modern measurement microphones and accelerometers and features simultaneous sampling. The NI-9231 incorporates both a TEDS input path and 2 mA of IEPE signal excitation source that can be turned on and off, removing the need for external sensor power and reducing the complexity of the data acquisition system.

Applications and Use Cases of NI-9231

The NI-9231 C Series Sound and Vibration Input Module is a C Series module designed for high-accuracy sound and vibration measurement using IEPE sensors. Она включает simultaneous sampling, built-in IEPE excitation, AC/DC coupling, and high dynamic range, что делает его идеальным для приложений, требующих precise dynamic signal acquisition.

1. Vibration Measurement & Analysis
NI-9231 is used to acquire vibration signals from accelerometers for analyzing machine condition, resonance, and dynamic behavior.

2. Acoustic & Sound Measurement
Supports microphones for capturing sound signals, enabling noise analysis and acoustic testing.

3. Machine Condition Monitoring
Widely used to monitor rotating machinery, detect faults, and support predictive maintenance through vibration analysis.

4. Structural Health Monitoring
Applied in monitoring structures such as bridges and buildings by analyzing vibration patterns and detecting anomalies.

5. Modal & Frequency Analysis
Used for modal testing and frequency response analysis to understand system dynamics and resonance characteristics.

6. Системы сбора данных (DAQ)
Integrated into CompactDAQ and CompactRIO systems for synchronized dynamic signal acquisition.

7. Научные и лабораторные применения
Used in laboratories for vibration analysis, acoustic studies, and experimental validation.