Hi Martin, On your page, you say that the AC22 can measure power at the wheels. How can it do that by just measuring acceleration? I could see how it could get initial power, but once you are going at any non-negligible speed, won't some of the wheel torque will go into counteracting drag and fail to contribute to the acceleration? Sean At 02:39 PM 10/19/00 +0100, you wrote: >I have used them to measure vehicle performance, have a look at >the performance meter at www.ac22.com What sort of resolution >are you looking for? If you set the filter capacitors to give a slow >enough response you should be able to resolve to 5mg. > >Martin -- http://www.piclist.com hint: PICList Posts must start with ONE topic: "[PIC]:","[SX]:","[AVR]:" =uP ONLY! "[EE]:","[OT]:" =Other "[BUY]:","[AD]:" =Ads