Anna Andres’s Work Log

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  • Post last modified:February 23, 2024
  • Reading time:7 mins read
  • Post category:Work Logs

Electric Violin

2/24/2024

Work Complete:

  • I did a bit of preparation for CDR and I helped out with Enterprise Day setup.
  • Presented the piezo configuration and placement (shown in the images below) in CDR and no major flaws were brought up, which finalizes our design until testing with the actual electric viola.

To-Do List:

  • Work with Georgia to make the more permanent piezo connections on the electric viola if she needs assistance.
  • Compile a list of ideas to do for the metronome in a more organized fashion.
  • Research ways we can power the module(s).
  • Discuss with the group what ideas I come up with for the metronome.

2/17/2024

Work Complete:

  • I wired/soldered two different types of connections with the pickups to the audio jack. One was with three piezos in series and the other one was three piezos in parallel.
  • I met with Georgia to test the above configurations to see which one worked better and where we will want to place the piezos on the actual electric viola. The test conducted was trying out the piezos on her non-electric viola and hooking it up to an amplifier. The test was successful and we determined that will want a total of four piezos in series, two on each side of the bridge.

To-Do List:

  • Work with Georgia to make the more permanent piezo connections on the electric viola.
  • Get ready for Critical Design Review.
  • Research more ideas and possible connections for the metronome.

2/10/2024

Work Complete:

  • I researched some options we could do for the metronome.

To-Do List:

  • Everything we ordered showed up so I will wire the pickups and solder connections from the pickups to the standard mono audio jack.
  • Research more ideas and possible connections for the metronome.

2/3/2024

Work Complete:

  • I researched pickup options and decided with the group what we want to try first. The current plan is to wire the pickups straight to the audio jack and test it with three pickups located on and in front of the bridge.
  • I helped make the shopping list with the group.

To-Do List:

  • Wire the pickups when they arrive.
  • Solder connections from the pickups to the standard mono audio jack.
  • Research ideas for the metronome while we wait for parts to arrive.

Concerns:

  • We might need to create and install a preamp circuit in between the pickups and the audio jack depending on the sound quality.

1/27/2024

To-Do List:

  • Get more comfortable with modeling in freeCAD
  • Research options for pick-ups
  • Research connection options from pick-ups to standard audio output
  • Compile a shopping list with the team