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- Newsgroups: comp.robotics
- Path: sparky!uunet!meaddata!sdw
- From: sdw@meaddata.com (Stephen Williams)
- Subject: Re: Seeking high-resolution ultrasound system
- References: <92315.0022523034871@QUCDN.QueensU.CA>
- Sender: news@meaddata.com (Usenet Administrator)
- Organization: Mead Data Central, Dayton OH
- Date: Tue, 10 Nov 1992 19:21:23 GMT
- Message-ID: <1992Nov10.192123.14608@meaddata.com>
- Lines: 27
-
- First idea to glide past:
-
- Mount 3 or more directional accelerometers and watch their relative
- strengths during apogee (bounce).
-
- 3 pressure transducers on the 'foot' would work also.
-
- 3034871@QUCDN.QueensU.CA (Ralph Siemsen) writes:
- : We're looking for some ultrasonic (or otherwise) detector to measure
- : distances of 5-15 cm to an accuracy of +- 0.5cm or better.
- :
- : The intended application is to measure the angle (by triangulation)
- : of a monopod robot relative to the ground. We have considered
- : accelerometers, but the bouncing action of the robot makes them
- : innefective. Commercial angle sensors are expensive ($1500) and we
- : really only care about a small range of angles (20 degrees), rather
- : than the full 180 degrees that most commercial units offer.
- :
- : So it would be quite easy to measure the distance to the ground from
- : a platform atop the robot. All we need is a nice sensor.
- ...
- sdw
- --
- Stephen D. Williams Local Internet Gateway Co.; SDW Systems 513 496-5223APager
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-