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-[* black] So, what has changed this year? First, the dome switch cover material. (Note- I would be happy if we swapped out the 2nd graph image with the picture of the CP instructor working on the device)
-[* black] In the 2018 model, the cover membrane is semi-opaque, tacky, and feels like silicone. The new model uses a clear membrane that is clear and smooth to the touch.
-[* black] To confirm that the materials are different, we analyzed them using Fourier Transform Infrared Spectroscopy (FTIR). Thanks to Cal Poly for letting us use their equipment!
- [* black] FTIR spectroscopy works by shining light at a material and measuring how much light is absorbed and at what wavelengths. This data acts as a fingerprint for the material, allowing for identification
- [* black] The spectrographs (is this the right word??) for the two membranes show that they ''are'' different to each other!
- [* black] By comparing the spectrographs to known materials, we are guessing that the 2018 model uses _______ while the 2019 model uses ________
+[* black] So, what has changed this year? First, the dome switch cover material.
+ [* icon_note] The cover membrane in the 2018 model is semi-opaque, tacky, and feels like silicone. The new model uses a clear membrane that is smooth to the touch.
+[* black] But we didn't want to rely on solely on our own observation. To confirm that the materials are different, we analyzed them using Fourier Transform Infrared Spectroscopy (FTIR). Thanks to Cal Poly for letting us use their equipment!
+ [* black] [https://www.innovatechlabs.com/newsroom/672/stuff-works-ftir-analysis/|FTIR spectroscopy|new_window=true] works by shining light at a material and measuring how much light is absorbed and at what wavelengths. This data acts as a fingerprint that can be used to identify the material.
+ [* black] The differing peaks and valleys on the [https://www.innovatechlabs.com/newsroom/1882/interpreting-analyzing-ftir-results/|FTIR spectra|new_window=true] for the two membranes show us that they ''are'' different materials!
+ [* black] By comparing the FTIR spectra to that of known materials, we can guess that the 2018 model uses polyacetylene, while the 2019 model uses polyamide.
[* black] What does that mean? Insert analysis here.