Author Topic: How servos work - helpful links  (Read 483 times)

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Offline waltr

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Re: How servos work - helpful links
« Reply #1 on: November 14, 2013, 10:38:01 AM »
Nice. These should be very useful.
Maybe the Admin can make this a 'sticky' for east reference.

Offline jwatte

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Re: How servos work - helpful links
« Reply #2 on: November 14, 2013, 04:53:31 PM »
I think it would be better if it was actually accurate.

Quote
A Servo is a small device that incorporates a three wire DC motor, a gear train, a potentiometer, an integrated circuit, and an output shaft bearing.


http://en.wikipedia.org/wiki/Servomechanism
http://en.wikipedia.org/wiki/Servo_(radio_control)

Offline ServoCityTopic starter

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Re: How servos work - helpful links
« Reply #3 on: November 14, 2013, 05:06:08 PM »
I think it would be better if it was actually accurate.

Quote
A Servo is a small device that incorporates a three wire DC motor, a gear train, a potentiometer, an integrated circuit, and an output shaft bearing.


http://en.wikipedia.org/wiki/Servomechanism
http://en.wikipedia.org/wiki/Servo_(radio_control)


We have changed it to read: "A servo is a small device that incorporates a TWO wire DC motor..."
Thank you for pointing this out.
Sincerely,
ServoCity

Offline jwatte

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Re: How servos work - helpful links
« Reply #4 on: November 15, 2013, 10:47:47 AM »
There's nothing that says that a servo has to be a DC motor, or a particular number of wires.
As stated on the Wikipedia articles I linked to...
What you are describing is a hobbyist RC servo. The qualifications are important!
"Servo" means any actuator drive that has a sensor, feedback loop, and controller. There are lots of servos that don't use a potentiometer, instead using higher-quality sensors (optical, magnetic, etc.) There are lots of servos that don't have a three-wire wiring harness. There are lots of servos that don't come with horns. There are lots of servos that use AC motors.

 


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