1. Hardware Design of 3-Axes
Magnetorquers for an
Actuator System
Olga Rivera Dr. Hien B. Vo - Mentor
Hanibal Soliván Dr. Miguel A. Goenaga - Mentor
ELEN 494 – Major Design Experience

2. Problem Definition
Design and build a 3-axes Magnetorquers (coils)
for a 2U CubeSat actuator system
Low power, low volume & low mass
Control currents at X, Y & Z axis to obtain torque
Implement an electronic circuit to control the
currents of the electromagnetic coils.
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3. Coil Fabrication for X & Y Axes
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4. Coil Fabrication for Z axis
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5. Final Prototype Model
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6. Actuator Block Diagram
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7. Step Programming Code
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8. Step Video with Coding
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9. Test Results with Compass
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10. Magnetic Field Results
for rod and air coil
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11. Final Results Obtained
Fabricated three magnetorquer for X, Y & Z axes
Tested coils: No shorts and No opens
Current met parameters in each coil (50mA & 100mA)
Current measured positive and negatives values
Measured random values of magnetic fields
Integrated an Arduino Nano as a Microcontroller
Supplies voltages
Input voltage (4V) and signal voltage (1.8V)
Developed step coding for all H-Bridge 11

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