Path: utzoo!utgpu!watmath!clyde!att!osu-cis!tut.cis.ohio-state.edu!mailrus!cornell!batcomputer!itsgw!imagine!turing.cs.rpi.edu!mcintyre From: mcintyre@turing.cs.rpi.edu (David McIntyre) Newsgroups: sci.electronics Subject: Re: Airspeed indicators Message-ID: <1944@imagine.PAWL.RPI.EDU> Date: 5 Dec 88 06:49:26 GMT Sender: news@imagine.PAWL.RPI.EDU Reply-To: mcintyre@turing.cs.rpi.edu (David McIntyre) Organization: Rensselaer Instipoly Technitute Lines: 17 When I was little, I built a little speedometer for my mom's car using a tiny dc motor and a voltmeter. All you have to do it hook up some kind of pinwheel to the shaft of the motor and measure the voltage coming from the motor. You have to get your mom to drive at calibrated speeds first, of course. You could make a little version of this, hook it to a voltage to frequency converter, and send the signal home. This would be really cheap. -dave Dave "mr question" McIntyre | "....say you're thinking about a plate mcintyre@turing.cs.rpi.edu | of shrimp.....and someone says to office : 518-276-8633 | you `plate,' or `shrimp'......" home : 518-271-6664 |