National Instruments announced the introduction of the new C-Series module NI-9234, a high-precision analog input module designed for sound and vibration measurement. The module has four synchronous sampling channels, which can sample at a rate of 51.2 kS/s per channel, while providing a dynamic range of up to 102 dB for vibration signal measurement in a variety of dynamic ranges.

The main features of the NI-9234 module include:

Ability to measure signals from integrated electronic piezoelectricity (IEPE) and non-IEPE sensors such as accelerometers, tachometers, and proximity probes.

Compatible with smart TEDS sensors to provide smarter sensor support.

Integrated with software-optional AC/DC coupling and IEPE signal conditioning, it can be flexibly processed according to different input signal types and measurement needs.

Each channel has a built-in anti-aliasing filter that automatically adjusts to the sampling rate to avoid signal distortion.

When used with NI software, the module provides processing functions for condition monitoring, such as frequency analysis and order tracking.

In addition, the NI-9234 module has an input range of ±5 V and a 24-bit resolution, ensuring high precision measurement capabilities. The module uses four BNC connectors, each channel with a 50 ohm resistor connected to the chassis floor to minimize ground noise.

The introduction of the NI-9234 module further expands National Instruments’ product line in the field of dynamic signal acquisition, providing engineers and researchers with a powerful tool to meet their stringent sound and vibration measurement requirements. The high performance and versatility of this module make it ideal for applications such as mechanical vibration analysis, acoustic measurement, noise analysis, condition monitoring and fault diagnosis.