Sample Rate & Nyquist Frequency for Data Acquisition & Telemetry Systems

Welcome to our educational video! In this video, you will learn the key concepts of *Sample Rate* and *Nyquist Frequency* in data acquisition and telemetry systems. This unit, sponsored by the *NASA Engineering and Safety Center (NESC) Academy* and **Dynamic Concepts Incorporated**, is designed to provide you with practical knowledge and hands-on experience through MATLAB exercises. *What You'll Learn:* *Importance of Sample Rate:* Understand why selecting the right sample rate is crucial for accurate data acquisition in various applications, including aerospace, automotive, and structural monitoring. *Aliasing and Anti-Aliasing Filters:* Discover how aliasing can distort your data and why analog low-pass filters are essential to prevent this error. *Nyquist Frequency:* Learn how to determine the minimum sample rate required to accurately capture and analyze signals in both frequency and time domains. *Amplitude Resolution:* Explore how bit resolution impacts the precision of your measurements, especially in telemetry systems with limited bandwidth. *Practical MATLAB Exercises:* Follow along with step-by-step MATLAB scripts to process real-world accelerometer data, convert bit values to physical units, and perform spectral analysis. *Key Topics Covered:* Setting up a data acquisition system for vibration and shock measurements. Guidelines for selecting sample rates based on maximum analysis frequency and source energy. Understanding the role of analog anti-aliasing filters in preventing aliasing errors. Converting telemetry data from bits to physical units (e.g., acceleration in Gs). Analyzing flight data using Fourier transforms and shock response spectra (SRS). *Who Is This For?* This video is perfect for *engineers**, **researchers**, and **students* working in fields such as aerospace, mechanical engineering, structural dynamics, and data acquisition. Whether you're analyzing flight data, conducting modal testing, or monitoring machinery, this unit will equip you with the tools and knowledge to optimize your data collection and analysis processes. *MATLAB Exercises Included:* Convert raw telemetry data from bits to acceleration values. Perform spectral analysis to identify dominant frequencies in vibration data. Apply cubic spline interpolation to smooth coarse data sets. *Sponsored By:* *NASA Engineering and Safety Center (NESC) Academy* *Dynamic Concepts Incorporated, Huntsville, Alabama* *Instructor:* *Tom Irvine* Feel free to reach out with any questions or comments via email or phone. Your feedback is invaluable! --- *Don't forget to like, share, and subscribe for more in-depth tutorials and engineering insights!* *#DataAcquisition #Telemetry #SampleRate #NyquistFrequency #MATLAB #Engineering #NASA #VibrationAnalysis #ShockResponseSpectrum*