Subject:
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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 01:31:42 GMT
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Viewed:
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1056 times
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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 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?
--
Brian Davis
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Message has 2 Replies:
 | | Re: Ultrasonic sensors - comparison & performance?
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| (...) I cannot provide any comparison information because I think it would be improper of me to do so. I would like to set out a couple of technical details relating to distance measurement using ultrasonic techniques, since I have been involved in (...) (21 years ago, 18-Mar-04, to lugnet.robotics)
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