After our final presentation of Senior Design II.

To further analyze for variance of the joint angle movement, a mean curve for yaw (dark blue curve) is shown in the figure below. The shaded region depicts one standard deviation of variance in the joint angle movement. This is a set of twenty trials for one of the subjects. The plot of standard variance […]

Our next set of trials, 3 subjects performed these trials. This test we changed the frequency of stimulation by modifying the period parameter of the stimulator. Since, frequency = 1/period.   We started from a period of 27 ms (a frequency of 37.04 Hz) and decremented by 3 ms until we reached a period of 3 ms (a […]

We also observed stroke patients to look into analyzing for additional parameters as well as looking into limitations of our design. The picture of the left is the stroke patient attempting to voluntarily move their arm without stimulation and some support, their arm isn’t moving too much. The picture of the right shows them attempting […]

Since, our last update, we have decided on a new design. Our design is now using two laptops rather than one. Our attempt at parallel processing has been unsuccessful, since Simulink doesn’t allow for any parallel processing even using Python. The two laptops are used as follows: 1) to work with Simulink, handling stimulation connected […]

Our initial prototype consisted of a breadboard, a arduino mega, an IMU MPU 6050, and our stimulation device, the PurePulse Duo. Here’s a picture of our initial prototype on the hinge connected to the computer and our stimulation electrodes on the triceps of the upper arm:

For this semester, since we’re focusing only on collecting data on the horizontal plane and stimulating the triceps to move the forearm, we needed to create a device that would stabilize the arm in the position. We tried to create a frictionless hinge that could move across the XY plane that wasn’t too heavy and […]