Currently the team is trying multiple solutions in parallel including trying out the flex sensor, slide potentiometer, knob potentiometer, and a pulley potentiometer. Chris and Galen are thinking about using Allen wrenches for each of the joints to measure angle potentially. Chris and Galen went to Gateway Electronics to check out available parts and come up with ideas. After going there, we were able to collect a few slide potentiometers of small size than Professor Widders, and some spring systems. In addition, we were able to find the size of the Allen wrench (5/64”) that fits Professor Widder’s potentiometer. Chris has also been working on the Matlab GUI to use for the device. In its current state, the GUI can set a threshold angle, calibrate to the resting angle, measure the angle of the potentiometer, and deliver visual and auditory feedback. The visual feedback is now changing the color of an RGB LED as opposed to the brightness which should be easier for the patient to distinguish between levels. The audio feedback is a beep that decreases in pause interval until it becomes almost continuous at the threshold angle. Olivia talked with Kristina to hear her thoughts on our Validation and Verification paper, and bought some sensors and LEDs.
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AuthorJust your average engineering students -- solving problems yet to be solved Archives
April 2018
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