fly by wire throttle pedals

[jamie101]

hi there,
im new to the forum, and i gotta say i think its amazing and
very very interesting, i have to log on everyday and have a good read, its all what im interested in, chemestry and gold!
although i have no experiance with chemicals or stuff i am willing to read and learn and have a go, im on page 46 of hokes book so far and again i think its a very interesting read,

anyways back to what i wanted to show you guys what i found,
its a 'fly by wire' throttle pedal from a vauxhall corsa 'C', i took it to bits the otherday at my scrap yard to find it has some shiney bits inside! lol
not sure what the silver coulored peices are though??

im just saving bits at the moment before i lern a few processes to have a go at processing somthing, somthing easy to start with,
i have my own car scrap yard so i come into contact with intersting bits and bobs all the time,

just wanted to shere this with you guys, and if i find anything else ill give you all a shout! cheers guys

 

[solar_plasma]

I got this link from one of our friends here:

http://pro.tanaka.co.jp/en/products/group_b/b_6.html

...as you can see in the table, there is a contact layer of some silver and gold and/or platinum and/or palladium attached to the spring material. Since it is sliding on the graphite (?) traces and has to be durable, I would guess it is a very thick layer. In the link they mention Plate thickness (mm) 0.05~0.20

Now you can calculate the estimated yield. Let us know!

Btw nice introduction! Welcome!

 

[bswartzwelder]

In the first picture, the silver parts have a sharp bend at the end. The underside of the "V" rubs on the carbon looking pieces on the second picture. As the contacts move on the carbon-like arcs, the resistance of the circuit changes. It is most likely connected to a circuit whereby a change in resistance causes something in the circuit to respond much like turning up a volume control causes the volume to get louder or softer. The only difference here is that most likely it changes a throttle setting making your vehicle go faster or in the opposite direction, it backs off the gas.