On 16 Apr 2006 at 15:03, Robert Berger wrote about : Subject : Re: CS>making CS - The Work Factor
> > The wattage factor is very real, but about the only way we can measure that > is after the fact by > plotting the data curve using Wplot32.exe and then running the integration > cuvre for the plotted > data. Been there done that. > > "Ole Bob" > Hi Ole Bob, How would you use the Watt reading ? Would knowing the instantaneous Power lead to anything useful? To get the Watts reading; I would measure Volts and Amps and multiply , which will give Watts. W = V*I . And you should be able to do that in real time a few different ways. You should be able to just manually write down the numbers and do the calculation for an almost immediate reading. To get a readout of W a way of doing this is log(volt) + log(amp) = log( volt x amp) . Did multiply two variables and sent to a pen recorder succesfully 30 years ago with op amps. But fiddly to design, build, setup and calibrate. An easier way might be to use an analogue multiplier intergrated circuit. This is not my forte anymore but you could start with an AD534KD. I do not have the spec sheets so I may be way off, but it is a starting place for a search. Another way might be to do that digitally. Wayne, you are into data capture and processing. Any practical advice re Interfacing, chip specs, software ? Tony Moody -- The Silver List is a moderated forum for discussing Colloidal Silver. Instructions for unsubscribing are posted at: http://silverlist.org To post, address your message to: [email protected] Address Off-Topic messages to: [email protected] The Silver List and Off Topic List archives are currently down... List maintainer: Mike Devour <[email protected]>
