[NSRCA-discussion] Servo Signals

[Jay Marshall]

I remember from my days in control systems theory that the analog computers
were faster and more accurate than the IBM big iron computers. Analog pots
are still cheaper, lighter, and higher resolution than digital encoders - as
long as they are clean.

 

Jay Marshall 

-----Original Message-----
From: nsrca-discussion-bounces at lists.nsrca.org
[mailto:nsrca-discussion-bounces at lists.nsrca.org] On Behalf Of Bob Richards
Sent: Saturday, June 20, 2009 10:24 PM
To: General pattern discussion
Subject: Re: [NSRCA-discussion] Servo Signals

 


--- On Sat, 6/20/09, Richard Lewis <humptybump at sbcglobal.net> wrote:

 

And....Interestingly enough.....It does not matter what kind of fancy
whopping digital super latest and greatest TX/RX system you have, the
signals to the servos are still firmly rooted in good old 1970's
technology....:)  And...Your super whopper digital brushless whatever servo
still has an analog pot for position feedback....:)

 

I for one am eager to see a leap in servo technology.....Bidirectional
serial comms to the servos with the servo being able to feed back torque,
amps, position, rate, etc.....and encoder/resolver position feedback in the
servos to really catch up with the world we live in......

 

Amen to that. We have digital servos and digital receivers, yet they talk to
each other via an analog method and use analog feedback.

 

 

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