Diana Omar
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Allow me to reintroduce myself

Hey! I'm Diana, and I'm an ABET Mechanical Engineering Student at Yale.

I am particularly interested in the intersection between robotics and music, using my music platform to advocate for underrepresented students in STEM. I hope to create accessible user-centered technology, bridging the gap between users and inventors. Feel free to take a look at this page to see what I've been working on lately. 

DIY Helmholtz Coil

As part of my research work this past semester, I developed a custom Helmholtz coil to create a region with a uniform magnetic field. This will be used to control droplets encapsulated with ferrofluids, allowing the prevention of coalescence. 

For this project, I was awarded the Yale College Dean's Research Fellowship and will be expanding on these capabilities over the summer. 

​KEY EQUATION FOR METHOD: 
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where μ0 is the permeability of free space
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PRACTICAL GUIDELINES FOR HELMHOLTZ COIL:
  • Two identical circular magnetic coils placed symmetrically along a common axis
    • One on each side of the experimental area, separated by distance h equal to radius R of the coil. This will minimize the non-uniformity of the field at the center of the coils.
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The setup on the left directly comes from this Helmholtz cage configuration: https://notblackmagic.com/projects/helmholtz-cage/
  • Parameters
    • Axis: 1-Axis
    • Coil Dimension: Inner: 10x10 cm, Outer: 12x12 cm
    • Coils Spacing: 5.5 cm
    • Coil Turns: 30
    • Field Strength: 489  (4.9 Oe) with 1 A (from tool)
      μT
Enameled Copper Wire: Approx. 2*12m = 24m of AWG24 (0.5mm)
The setup on the right is a custom 3D printed version using the same parameters (Dimensions, coil spacing, coil turns, field strength). Instead of using the PCB recommended by the website, we connected the copper coils directly to AC power.
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Based on the current setup, we were able to calculate 4.9G for the theoretical magnetic field.
  • As I increased the current, the strength of the magnetic field increased. This was tested qualitatively using small magnets.
  • In order to get to 50 gauss as used in an experiment we would like to replicate, one option is to wind the coils 300 times instead of 30. However, this would cause some concern given the limited surface area provided by the cage. One idea to minimize this is by using thinner coils.
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We were able to get some tests using a gaussmeter and different currents.

​Based on the results, we were able to conclude that the constructed Helmholtz coil matched theoretical calculations pretty well, meaning that there is a uniform magnetic field in the center of the coil.

Soft Robotic Gripper 

For my soft robotics final project, my group decided to replicate a paper that created a soft robotic gripper with variable finger lengths. We designed and 3D printed molds using Onshape, scaling to various lengths using a Bambu slicer. The gripping ability was tested using pass/fail criteria and common objects at various pressures. 
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Fingers were fabricated out of Dragon Skin 30 silicone rubber. 
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Brackets were custom 3D printed and the gripper grasped with air pressure and extended outward with vaccum. 
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The gripper was able to grasp many objects, with higher pressure resulting in a greater pass rate. 

Yale Exploration Rover

Yale Exploration Rover comprises thirty undergraduate students from various disciplines focused on designing a Mars Rover. During the 2024-2025 academic year, I was the robotics subteam lead, overseeing the development of a 5 DoF robotic arm. I am currently the project lead, overseeing the development of the entire rover. 

This year, we created a functional Onshape assembly using a combination of COTS, CNC, and 3D printed parts staying within budget of $3000
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© 2025 Diana Omar
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