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- Newsgroups: comp.robotics
- Path: sparky!uunet!charon.amdahl.com!pacbell.com!mips!sdd.hp.com!decwrl!csus.edu!netcom.com!nagle
- From: nagle@netcom.com (John Nagle)
- Subject: Re: Electronic Spirit Level
- Message-ID: <89!n!aq.nagle@netcom.com>
- Date: Thu, 20 Aug 92 00:27:26 GMT
- Organization: Netcom - Online Communication Services (408 241-9760 guest)
- Keywords: inclination, balance, mobile robots
- References: <1992Aug19.210513.27247@constellation.ecn.uoknor.edu>
- Lines: 16
-
- rwmurphr@uokmax.ecn.uoknor.edu (Robert W Murphree) writes:
- > The heart of the SMARTLEVEL, produced by Wedge Innovations
- >in San Jose, California, is a device called a liquid-filled
- >inclinometer. A sealed capsule contains two parallel conducting
- >discs with a space, partially filled with iquid between them.
-
- Available at Orchard Supply Hardware.
-
- This is not a new idea; ETAK has built two-axis versions of
- such devices, packaged with a rate gyro, for their vehicle navigation
- system. These were supposed to be cheap (I paid about $125 a few years
- ago) and of modest accuracy, but I doubt they still make them.
- But the technology is cheap, although there are tricks to getting it to
- work well during violent motion.
-
- John Nagle
-