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Showing posts from March, 2020

New Coil Model

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After sitting down with someone who has a bit more CAD experience, we were able to come up with a better model for the detector coil. It features concave surfaces to ensure that the coils don't move around too much after coiling. It also has holes for the wires to go through to enhance the stability of the coil. The new model can be seen in figure 1.   Figure 1: New Coil Model

Pre-Finals Update

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Now that our capstone projects have finished up, we have found some more time to work on the metal detector. The prototype coil isn't going to be sufficient for testing the circuits on because it has a different inductance than the final coil, so our current priority is building the final coil.  We modeled the coil housing in SolidWorks and will be 3D printing the final design. Figure 1 shows a model of what the coil housing will look like. Figure 1: Model of Coil Housing The receiver coil will be wound around the inner cylinder and the transmitter coil will be wound around the outer surface. The inner cylinder and outer cylinder have a 4 cm and 8 cm diameter, respectively. We do have to keep in mind that this housing will be mounted on some sort of detector shaft. To speed things up, we will be working on building the oscillator while the coil housing is being printed. The oscillator works independently of the coils so we have the option of building and testing it...