Path: utzoo!utgpu!news-server.csri.toronto.edu!bonnie.concordia.ca!uunet!cs.utexas.edu!asuvax!ncar!gatech!prism!gt0297a From: gt0297a@prism.gatech.EDU (Tim Drury) Newsgroups: sci.electronics Subject: Re: measuring vehicle speed Summary: measuring vehicle speed followup Keywords: car speed Message-ID: <31529@hydra.gatech.EDU> Date: 18 Jun 91 12:37:59 GMT References: <31487@hydra.gatech.EDU> <1991Jun18.003032.18571@mulga.cs.mu.OZ.AU> Organization: Georgia Institute of Technology Lines: 13 after reviewing all the responses (thanx folks) i believe a doppler measuring system to be to costly and complex for a $6000 car budget. it seems that i will invest in 4 magnetic proximity sensors on all four wheels. if the speed of either rear wheel exceeds some average of the front two then i will reduce the power of the engine. i could spend a few hours determining vehicle speed from both front wheels (and angle probably) but it would probably be better if i built the system with some flexibility and simply tweaked the system on the test track until i get satisfactory results. i'm still listening for alternatives... -tim drury email: gt0297a@hydra.gatech.edu