Copy of 5BL Lab 5 Assignment Submission - W24v2

.pptx

School

University of California, Los Angeles *

*We aren’t endorsed by this school

Course

5A

Subject

Mechanical Engineering

Date

Apr 3, 2024

Type

pptx

Pages

5

Uploaded by MajorLapwingMaster1210

Report
1 1.Describe your experimental setup for the guitar measurement, with a brief statement of how you are measuring your frequency and wavelength for the two string lengths. Need: Guitar and Visual Analyzer software, microphone. Have microphone connected to computer with software. Hold right above guitar to pick up sound waves. frequency: period T = 1/f. Find time needed to complete 10 wavelengths and divide by 10 to use for T. Solve for f. wavelength: measure length of strength. wavelength = 2L/n. Show snapshots of the frequency data (using capture scope for 10-20 periods and capture spectrum; 2 plots ), labeling the parameters of the measurement and give a clear description of how they were obtained. found time over 10 wavelengths to calculate frequency 1/(deltat/10) wavelength: 2L/n. measured effective guitar string to obtain L. n=1 found time over 10 wavelengths to calculate frequency 1(deltat/10) wavelength: 2L/n. measured effective guitar string to obtain L
2 2.Enter the data analysis from your guitar measurements in the table below Discuss possible sources of error (and which error(s) you think is/are most likely and why). Physical System Length (m) Standing-Wave Wavelength Measured Frequency String wave speed Guitar String 0.77 1.54m  176.37 Hz 271.60 m/s Guitar String  0.39  0.78m 308.64Hz 240.74 m/s  Some possible sources of error could be that the microphone picked up sounds of other frequency and wavelength from around the room. The surrounding environment of the room could also disrupt the length and the elasticity of the strings because of the temperature. Another error may be introduced by us while conducting the measurement like an inaccuracy in measuring length of the guitar string. Lastly, there could be an inaccuracy in the technical equipment that we are using to measure the waveform and speed.
3 3.Describe your experimental setup for the singing rod, including how you determined the wavelength and frequency for two of the modes Hold rod at its midpoint with thumb and index fingers. With other hand, dust thumb and index finger with resin and pull rod along its length. Now change where you are holding the rod and repeat. Use microphone held above guitar to pick up sound. Use visual analyzer software to find the frequency. Measure length of rod and use this to find wavelength (2L/n). To determine frequency: calculate average time for 10 wavelengths. frequency = 1/T To determine wavelength: wavelength = 2L/n. Use length from holding point to end of rod Show snapshots of the frequency data (using capture scope for 10-20 periods and capture spectrum; 2 plots ), labeling the parameters of the measurement and give a clear description of how they were obtained. found time over 10 wavelengths to calculate frequency 1/(deltat/10) wavelength: 2L/n. measured rod length to obtain L. n=1 wavelength: 2L/n. measured rod length to obtain L. n=1 found time over 10 wavelengths to calculate frequency 1/(deltat/10)
Your preview ends here
Eager to read complete document? Join bartleby learn and gain access to the full version
  • Access to all documents
  • Unlimited textbook solutions
  • 24/7 expert homework help