Subject:
|
Re: Sonar for longer ranges
|
Newsgroups:
|
lugnet.robotics.handyboard
|
Date:
|
Tue, 3 Jun 1997 22:39:12 GMT
|
Original-From:
|
Sriram Tirunellayi <SRIRAM@DS5500avoidspam.CEMR.WVU.EDU>
|
Viewed:
|
1257 times
|
| |
| |
>
The Polaroid manual talks about acoustic horns to narrow the beam
angle...has anyone tried this?
> Hi everyone,
> I have had the Polaroid sonar sensor working for a while and I just
> noticed some limitations in it. When sensing over about 15 feet it
> becomes very inaccurate, it registers the appropriate distance but
> intermittently gives out much smaller numbers. I think this is because of
> its widening "cone of vision" as you move farther from the ranging unit.
> In order to accurately sense a far object you must be in a very broad (as
> well as long) empty room. Can anyone think of a way to narrow this
> "cone of vision" effect so that the sonar unit will be more discerning.
> Daniel
>
|
|
1 Message in This Thread:
- Entire Thread on One Page:
- Nested:
All | Brief | Compact | Dots
Linear:
All | Brief | Compact
|
|
|
|