![]() ![]() Way for people to create cleaner energy for charging their small devices. Shoe insole is not the solution to our energy generation problems, but it is a Without harming the earth, there will need to be either some major cutbacks inĮlectricity use or better ways for electricity production. In order to continue living this lifestyle Currently, most of global electricity is produced byīurning some type of fossil fuel (International Energy Agency, 2018) whichĬontributes to global warming. We use electricity for everything in our day-to-day lives, startingįrom our electric toothbrushes to our cell phones all the way through to ourĮntertainment systems. They can, but one of our biggest problems is our electrical energy consumption Looking for ways to be more sustainable and to create as little pollution as Of electricity with only 3 piezo elements per insole, the concept of producingĬlean energy with piezo elements is very possible. This shows that despite not being able to generate large amounts Pack of three AA batteries by 0.001 mV after 5 minutes of mechanical pressure This efficient insole is able to increase the voltage of each battery in the Prolonged periods of time and need a convenient way to charge their devices. This device could be of use to those who are far from chargers for The insoles use the alternating current made by the piezo elements andĬonvert it into direct current, which can be collected inside of a battery Is focused on generating electricity by incorporating piezo elements into shoe Major role in everyone’s lives, and more recently scientists have been lookingįor more environmentally friendly ways to produce it. Don't pull a harbor freight and sell a ultra sonic cleaner which has the horn fall off and melt the chassis and try to light tables on fire.Gulgun (Julie) Ibrahimova, Year 2 Engineering. I assume you will have to test a glue bond to the device being stimulated anyway. You need to test products before sale typically, especially if they do a process (you can't just plug it into a card, you need to make sure the transducer works and is in spec), so having the test technician trim something is not outlandish. Plenty of good profitable things get adjusted. Not sure if you want to say tuning/adjustment is bad for production, its best avoided. I only worked with one piezo device and I never finished the project. You should be able to produce a graph of output power vs tuning some how I do see values of nF for capacitor, but I don't know about series L. parallel/series components) How are you measuring performance of the device during match tuning? I suspect your IA will have a difficult time (not sure how well it can mimic a real Keysight IA). Well you use the variable parts to see what matching actually does, then if you like it you figure out how to match it cheaply (i.e. How are you measuring the piezo device, experimentally or via the data sheet ( assuming it exists) Also, do you have a VNA or impedance analyzer that could help measure and characterize the device? And could you explain how you drive the device now and the issues you expect to have without a proper or optimized match Bob Perhaps the best way to match is by selecting the frequecies of interest and do your best with L’s an C’s to get the most stable operating point and match to that. Understandably, in your case, matching is a lot more difficult. In both cases the impedance match was really poor since The manufacturer of these devices had such poor control of the impedance over frequency, they often didn’t spec it or provided a typical, non-guaranteed performance number just for reference. I have somewhat similar experiece driving electro acoustic modulators and piezo fiber stretchers (fiber optic device used in interferometors) in those cases I was driving them with a fast sub nano-second pulse or slewing a very high voltage into a very capacitive load. ![]()
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