Transcript Guitar Vibrations" (Microsoft Power Point Slide Show

Guitar Vibrations
Adam Kempton [email protected]
Eric Moon [email protected]
under Prof. Steve Errede
Overview
• Quick review of previous talk
• What we’ve done since, including data
• What could be done to develop and
improve method
Data Acquisition (DAQ) Setup
White Noise Setup
HP 3562A Dynamic Signal Analyzer
eBay is great!
Random Noise
Transmit
Op Amp
Receive
White Noise
Cross Spectrum ofGibson J-45 w/ Receive below
Transmit
145 Hz
90 Hz
368 Hz
208 Hz
DAQ data of Vtotl vs. Freq w/ receive below transmit
140
185
90
211
363427
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
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?
Acknowledgments
Prof. Steve Errede
Prof. Lee Holloway
Jack Boparai
Contact Information
Adam Kempton [email protected]
Eric Moon [email protected]
Last but not least….
Thank you Nicole Drummer for
making this a fun experience!