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Advancements in Guitar Vibration Analysis for Enhanced Data Acquisition

Explore the progress in data acquisition methods using the HP 3562A Dynamic Signal Analyzer and white noise setup for Gibson J-45 guitar vibrations. Discover limitations & developments to improve accuracy. Contact Adam Kempton and Eric Moon.

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Advancements in Guitar Vibration Analysis for Enhanced Data Acquisition

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  1. Guitar Vibrations Adam Kempton akempton@jcu.edu Eric Moon moon_eric@hotmail.com under Prof. Steve Errede

  2. Overview • Quick review of previous talk • What we’ve done since, including data • What could be done to develop and improve method

  3. Data Acquisition (DAQ) Setup

  4. White Noise Setup HP 3562A Dynamic Signal Analyzer eBay is great! Random Noise Transmit Op Amp Receive

  5. White Noise

  6. Cross Spectrum ofGibson J-45 w/ Receive below Transmit 145 Hz 90 Hz 368 Hz 208 Hz

  7. DAQ data of Vtotl vs. Freq w/ receive below transmit 140 185 90 211 363 427

  8. Limitations! • Piezo transducers are 3.7 cm in diameter…too big! • Suspending guitar can be tricky…does not hang the same way twice • Time constraints

  9. Developments • Calibration of piezo transducers- correlating voltage with space to develop plots w/ space dimensions as z-axis • Map out using more points with smaller transducers • Understand better the DAQ graphs • Laser Holography?

  10. Acknowledgments Prof. Steve Errede Prof. Lee Holloway Jack Boparai Contact Information Adam Kempton akempton@jcu.edu Eric Moon moon_eric@hotmail.com

  11. Last but not least…. Thank you Nicole Drummer for making this a fun experience!

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