You're correct that this is just a concept. The power requirements are probably the main hangup, because we needed around 10 amps to get a good response.
The iron particles are 325 mesh (44 microns) and are at least theoretically coated in a surfectant that acts as a lubricant. Current commercial applications of MR fluid appear to have pretty much overcome any abrasive qualities.
This is a way cool gadget. It's a lot more sophisticated than any of my projects. I'm sure this is just a prototype to demonstrate the concept, instead of a finished product. Otherwise, the control panel would be in a much more convenient place.
Another thing: Will the iron particles in the shock oil not eventyally grind down the metal parts? I've heard of this technique before in a clutch used in an automobile AC system. Also, how much power does this thing use? A big battery or generator would slow you down a bit, wouldn't it?
Jason, You guys did a great job on the bike project. I do understand about being over your head when developing products. I tell me students not to get caught up in the tech glitz -glamour of the project but focus on the team's capabilities to accomplish the individual tasks required to complete the final product. Very nice work!!!
Rob, I'm still working on the sales pitch of the benefits that come with submitting projects to the magazine. Some of the students are interested but trying to put this project into their busy schedule.
Thanks for the comments. We wanted to control this with a cell phone, but decided it might be beyond our abilities. This was pretty much our first experience with control systems and we wanted to make sure we didn't get in over our heads.
Yes, biking is big in Colorado, especially in this age group. And yes, we are seeing a string of projects from Colorado State. That goes back six or seven years. What I'd like to see is a string of your students, MrDon.
Rob I'm noticing a stream of Colorado State University engineering students developing some really cool and innovative gadgets. This is the second bike gadget I've seen from the university where the first one was a Smart Bike Shifter (Gadget Freak Case #205). I assume biking must be big in Colorado, based on the bike submission projects, along with skiing. Cool Gadget!!
Festo's BionicKangaroo combines pneumatic and electrical drive technology, plus very precise controls and condition monitoring. Like a real kangaroo, the BionicKangaroo robot harvests the kinetic energy of each takeoff and immediately uses it to power the next jump.
Design News and Digi-Key presents: Creating & Testing Your First RTOS Application Using MQX, a crash course that will look at defining a project, selecting a target processor, blocking code, defining tasks, completing code, and debugging.
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