Subject:
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Re: motors
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Newsgroups:
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lugnet.robotics.handyboard
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Date:
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Mon, 21 Apr 1997 09:15:54 GMT
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Original-From:
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Prabal Dutta <{prabal@}StopSpammers{dmsc.com}>
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Reply-To:
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prabal@dmsc.STOPSPAMMERScom
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Viewed:
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4083 times
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Mar,
You might want to try attaching a small (0.1uF) capacitor to the motor
leads as close as possible to the motor. Use a ceramic or monolithic
ceramic capacitor. That might reduce the motor noise your sonar board
sees. Also remember that even though you are using different power
supplies, they probably share the same ground. Inexpensive toy motors
ofter generate the worst noise, and are the cause of all kinds of weird
behavior.
- Prabal
MAR ERICSON wrote:
>
> Hi,
>
> I have some motor trouble. I have two motors. I have a polaroid sonar.
> When I run one of the motors, the sonar works. When I run the other motor,
> the sonar's detected distance jumps arround randomly. The randomness seems
> to be more at higher speeds. I tried using different motor ports but the
> result is the same. One motor causes this erratic behavior, and the other
> doesn't.
> It's funny, cause the sonar and the motors and the HB are powered
> seperately.
> Has anyone experienced something like this?
> Thanks for any input. :)
>
> -----------
> ericson mar
> Master of Engineering Candidate
> Project: Mobile Robotics
> mar@cooper.edu
> (212)353-4356
>
> Department of Mechanical Engineering
> The Cooper Union for the Advancement of Science and Art
> -------------------------------------------------------
--
Prabal Dutta Tel: (614) 299-2566
Digital Micro Systems, Corp. FAX: (614) 299-2939
PO Box 3579 e-mail: prabal@dmsc.com
Columbus OH 43210-0579 WWW: http://www.dmsc.com
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Message has 1 Reply:
 | | Re: motors
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| Here's the motor I used so you all know not to buy it. Barber-Coleman FYQF 63310-9 12V DC If anyone has had any experience with this one or its siblings, please share your thoughts. I would be grateful for any further info. :) ---...--- ericson mar (...) (30 years ago, 23-Apr-97, to lugnet.robotics.handyboard)
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Message is in Reply To:
| | motors
|
| Hi, I have some motor trouble. I have two motors. I have a polaroid sonar. When I run one of the motors, the sonar works. When I run the other motor, the sonar's detected distance jumps arround randomly. The randomness seems to be more at higher (...) (30 years ago, 19-Apr-97, to lugnet.robotics.handyboard)
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