Final Construction
After testing the parts individually, we moved onto creating the actual final electro-mechanical accelerometer. The final design is shown in Fig. \ref{613341}, and includes only the physical schematics for the mechanical part of the device. The circuit we used can be found in Fig. \ref{227296}, with noticeable adjustments from the circuit in Fig. \ref{739549}. Tristan used the Demerrit Hall machine shop to mill our known mass out of brass, which at the time of writing has not been properly massed. By fixing it with a 1/4 28 hole, we were able to fix a loose wire to brass in with a screw and nut, allowing for the piece to be charged. In addition to the mass, Tristan also milled a 152 mm PVC pipe the same diameter as the brass mass, to allow for a sliding rail for the wire to come out of. While the machining was underway, I cut out eight pieces of our oscillating medium, non-static foam, of equal thickness and diameter, to be used in the accelerometer. Each piece measured 10.75 mm in radius, the same radius as the brass mass. Using an epoxy-based super glue, I glued two sets of the foam, each containing four pieces, to each other to create both sides of the oscillating medium. Once compressed to ~50% of their total size, the foam blocks acted a good oscillating medium for the brass mass and restored back to their original size when left alone for a moment.