Prosthetic Arm

S17 Prosthetic Arm: Sleep ISR Test with Analog Sensor

The Sleep ISR Test is done to make sure that once it sees a fluctuation in an analog signal, not unlike a temperature sensing heat breaching 50 degrees celcius, it will power down the MCU and the reduced current draw will cool down the PCB and all of her components.

S17 Prosthetic Arm: Finite State Machine Servo Test

The purpose of this test is to make sure our code can rotate the servo in the wrist of the prosthetic arm only when the EMG sensor detects muscle contraction.

S17 Prosthetic Arm: Buck Converter LTSPICE Simulation

To test if the buck converter we have designed is able to be used to step-down the voltage of the battery at 11.1V to the voltage needed to power the servos, at 5V, safely.

S17 Prosthetic Arm: Kill Switch Test

This test if performed to try to confirm that a switch on the V- path back to battery is able to turn off the prosthetic arm and hand system without damaging other electronic components.

S17 Prosthetic Arm: Servo Load Test

This test is done to make sure the servo in the prosthetic arm can handle the weight of the prosthetic hand and any object that it’s holding while still being about to rotate vertically, with the orientation in the direction of the ground.

S17 Prosthetic Arm: Battery Discharge Test

This test is done in order to choose the proper battery to use for the prosthetic arm and hand, and then to figure out how much capacity the battery has, and what the voltage rating of the battery is.

S17 Preliminary Project Plan: Prosthetic Arm

Preliminary Project Plan, with initial work breakdown structure information, system and subsystem level tasks, and system resource reports and cost reports.

S17 Preliminary Design Document: Prosthetic Arm

Preliminary Design Document includes everything from the Project Objectives and Mission Profile to the Design and Unique Tasks Descriptions of the Project

Battery Blog Post

Conducted by:  Luis J. Martinez (Mission, Systems, and Test Engineer) Battery (Duration, Powertrain) As selected from our previous trade-off studies, the battery of choice for powering our Prosthetic Arm, in conjunction with the Prosthetic Hand, recognized as the Upper-Limb Prosthetic System was the 14.8V (4S), 1600–mAh Zippy Compact Lithium-Ion Polymer (LiPo) battery. Incorporated into our […]

Final Blog Post – Prosthetic Arm (Fall 2016)

Executive Summary Program Objective By Carolina Barrera   The objective of the Prosthetic Arm is to engineer and design an arm that will help position the hand in three-dimensional space. The arm should allow the hand to reach the mouth as well as the dinner table (tray) to allow the user to pick up food […]