9250 National Instruments C Series Sound & Vibration Input Module

Description

9250 National Instruments C Series Sound & Vibration Input Module

Product Dimensions：

Product Description

The NI 9250 is a 2-channel C Series sound and vibration input module for the NI CompactDAQ and CompactRIO platforms. This module is specifically designed to measure signals from a variety of sensors, including integrated electronic piezoelectric (IEPE) sensors like accelerometers and microphones, as well as non-IEPE sensors. It’s a high-performance module that provides a wide dynamic range, built-in anti-aliasing filters, and software-selectable signal conditioning.

Product Specifications

• Channels: 2 analog input channels.
• Resolution: 24 bits.
• Maximum Sample Rate: 102.4 kS/s per channel, with simultaneous sampling across both channels.
• Input Range: $\pm$5 V.
• Sensor Support: Compatible with IEPE and non-IEPE sensors.
• Signal Conditioning: Features software-selectable AC/DC coupling and IEPE signal conditioning.
• Anti-Aliasing Filters: Each channel has a built-in anti-aliasing filter that automatically adjusts to the sample rate.
• Connectivity: BNC front-panel connectors.
• Overvoltage Protection: Provides up to $\pm$30 V of overvoltage protection on one channel at a time.

Product Advantages

• High Performance: With a 24-bit resolution and a wide dynamic range, the NI 9250 is capable of making highly accurate sound and vibration measurements.
• Flexibility for Sensors: The ability to handle both IEPE and non-IEPE sensors, along with software-selectable AC/DC coupling, makes the module versatile for a wide range of acoustic and vibration tests.
• Simplified IEPE Setup: The module provides a built-in IEPE excitation current, which means you don’t need an external power source for your IEPE sensors, simplifying your hardware setup.
• Superior Signal Integrity: The simultaneous sampling and automatic anti-aliasing filters on each channel ensure that your data is clean, accurate, and free from aliasing artifacts.

Product Applications

The NI 9250 is ideal for applications requiring high-fidelity dynamic signal acquisition.

• Sound and Vibration Analysis: Perfect for capturing data from microphones and accelerometers to perform frequency analysis, order tracking, and modal analysis.
• Machine Condition Monitoring: Used to monitor the health of rotating machinery, such as motors and turbines, by analyzing vibration signatures to detect potential faults.
• Acoustic Testing: Employed in noise, vibration, and harshness (NVH) testing to measure and analyze sound pressure levels in various environments.
• Structural Health Monitoring: Can be used to measure vibrations in structures like bridges or buildings to assess their structural integrity over time.

Precautions

To ensure safe and reliable operation of the NI 9250, consider the following:

• Electromagnetic Interference (EMI): The input ports of this device are not shielded against EMI. To maintain measurement accuracy, it’s essential to use properly shielded cables and to route them away from sources of strong electromagnetic interference.
• ESD (Electrostatic Discharge) Precautions: The module contains sensitive electronic components. Always handle it in a static-safe environment and follow proper ESD procedures to prevent damage.
• Cable and Connector Quality: For best performance, use high-quality, 75 Ohm BNC cables and ensure all connections are secure.
• Software Compatibility: The full functionality and processing features of the NI 9250 are unlocked when used with NI software, such as LabVIEW, which is necessary for configuring the module and performing data analysis.

Shipping Port: Xiamen, China

Payment: Bank of Chicago, Bank of Singapore

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