Noise & Vibration Measurement

[Parthiban_SM]

It's been one year since I started learning about instrumentation, and I am now keen to understand noise and vibration measurement more deeply. I have been involved in some real-time experiments, but due to a gap in my expertise, the results have not been satisfactory. I would like to know the optimal learning path—where should I start? For example, should I begin with sensor working principles, measurement devices, wiring practices, signal acquisition, processing, etc.? I would appreciate a recommended study flow, starting from the fundamentals and moving towards advanced concepts, along with suggested study materials that can help me gain expertise in this domain

[dsb@NI]

I would start by identifying an experienced mentor that can work with you to develop expertise in this area.

If you are committed to self-paced learning, start with concepts to get a high-level view of sound and vibration phenomenon and the relevant physics. Online references, webinars, and courses provided by Bruel and Kjaer (now HBK) are very helpful: hbkworld/knowledge. Hopefully, this material provides the background to understand the sound and vibration characteristics of your machine.

Then, move to the sensors needed to measure the sounds and vibrations of your device. For information relating to sensors, refer to your preferred sensor vendor. For example, the following sensor vendors provide great online content:

• PCB
• Kistler
• GRAS Acoustics

For measurement system and signal processing information, use the resources provided by the measurement system vendor. Since you are posting here on the NI forums, review the learning resources for LabVIEW, DAQmx, and Sound and Vibration Toolkit. If you already have NI DSA modules and some sound and vibration sensors, try the (free) DSA Soft Front Panels.

Good luck in your learning journey!

[Parthiban_SM]

You've answered some of my questions. The answers are really deep, and I appreciate your dedication in providing them. Your guidance has given me a clearer vision, and in that way, you feel like a mentor to me. Thank you for the detailed responses