1354Re: [rsa] commutator questions
- Aug 31, 2003douglas,
I don't know your application, but if I needed to get video from one
place to another, I would consider an RF or optical link.
A photo transmitter might shoot down the axle and be received at the
other end. An RF link could radiate into the room and be received
anywhere on the other half. It is non-contact, so friction and contact
noise won't be a problem.
Price, weight, size, power consumption, and acceptable complexity will
probably be your major trade-offs. It seems to me that an optical link
could probably be done for the smallest weight and size, but that may
not be the trade-off you are looking for.
Peter A. Bonucci
douglas irving repetto wrote:
> david said:
>>Most guys build their own...
> That's what my friend has been doing (machining his own), but he's
> having real trouble with wear and noise in his signals. These are art
> installations that are on for very long periods of time. He has been
> experimenting with various materials and designs, but can't come up
> with anything that's consistently quiet and durable. Any advice or
> pointers to info?
>>At 17:34 30-08-03 -0400, you wrote:
>>>a friend of mine is working on a bunch of projects that involve
>>>rotating cameras. he's been having trouble finding a reliable
>>>commutator design. can anyone point me to some online or book-based
>>>info on commutator design?
>>>(by "commutator" i mean a device that allows you to feed
>>>power/signals to a rotating part, as opposed to a device that turns a
>>>motor's output from AC to DC. is "commutator" the correct word for
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