Subject:
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Re: Ultrasonic sensors - comparison & performance?
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Newsgroups:
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lugnet.robotics
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Date:
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Thu, 18 Mar 2004 08:20:30 GMT
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Viewed:
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1071 times
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In lugnet.robotics, Brian Davis wrote:
> I've been looking at ultrasonic sensors for the RCX - two seem currently
> availible, the 24 kHz one from Mindsensors, and the 40 kHz one from HiTechnic.
> What experience do people have with these, specificly? I suspect they wouldn't
> interfere with each other, but I'm unsure of how well they will detect different
> size targets. Anybody have personal stories? What is the refresh rate on either
> sensors (3 ms? 30 ms? more?). What is the minimum size (I'm assuming angular
> here) detectable (ie - does the frequency make a difference? Is it something
> else)? How stable are the readings (variation with a fixed target at fixed
> distance? What happens when you tilt/rotate the target)?
> Anybody have advice here? Testimonials?
I have no personla experiance of any ultrasonic range sensors (still waiting for
my sensor from HiTechnic). But I found this extensive test of the HiTechic
sensor.
http://www.cs.brown.edu/people/tld/courses/cs148/02/sonar.html
/Henrik
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Message has 1 Reply:
 | | Re: Ultrasonic sensors - comparison & performance?
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| Hi, I own the 24Khz from Mindsensors. I have not played with it a lot, mainly because I cannot get useful behavoiur. The device works nearly as a binary detector, object present in xxx meter or no object. Minimum distance is around 30 and max about (...) (21 years ago, 18-Mar-04, to lugnet.robotics)
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Message is in Reply To:
| | Ultrasonic sensors - comparison & performance?
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| I've been looking at ultrasonic sensors for the RCX - two seem currently availible, the 24 kHz one from Mindsensors, and the 40 kHz one from HiTechnic. What experience do people have with these, specificly? I suspect they wouldn't interfere with (...) (21 years ago, 18-Mar-04, to lugnet.robotics)
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