what about a fuse? or a light bulb(s)? harry
On Sun, May 26, 2013 at 4:20 AM, Andrew <[email protected]> wrote: > ** > Nice idea in principle, but if the power actually supplied lies outside > the frequency range of the measuring equipment, then this won't work. > > Come to think of it, are there any EE's on this list except for Duncan and > myself? > > Andrew > > ----- Original Message ----- > *From:* Harry Veeder <[email protected]> > *To:* [email protected] > *Sent:* Sunday, May 26, 2013 1:10 AM > *Subject:* Re: [Vo]:The inanity of the hidden input power hypothesis > > No knowledge of the waveform would be required if a circuit breaker were > used which trips if more power is getting in than Rossi claims. > Harry > > > On Sun, May 26, 2013 at 3:28 AM, Andrew <[email protected]> wrote: > >> ** >> Probably; in any case, it would be an improvement. The majority of the >> paper is taken up by detailed calculations on the thermal emissions from >> the device - i.e. on the output side. >> >> On re-reading the paper, I'm struck by a detail from the March 116 hour >> test. When the input is on, the power supplied *exactly matches* (up to >> error bars) the output power, namely about 820 W. I for one find this a >> curious data point. It's stated that there's a 35% duty cycle on the input, >> and for that reason alone we get an over-unity COP result. The TRIAC-based >> control box appears to have two modes - auto and manual (the paper makes no >> attempt to help us understand this). In auto mode, there's a switchover to >> pulsed mode but it's unclear what triggers this. I can only assume it's due >> to sensing the resistor temperature indirectly via a resistance estimate. >> In manual mode, the authors describe setting the power level, so presumably >> this is also an externally available control on the box. But who knows, >> really? And what is really happening during the OFF state of the waveform? >> If power is being snuck into the device here, then the COP = 1, and there >> is no magic. Note that, if this be the case, then it doesn't matter if you >> run the device for a day or a year; you will always measure over-unity COP >> even though the real COP is unity. >> >> When they describe the dummy measurements, they mention placing the meter >> in single phase mode directly across the resistor feed wires (it's single >> phase for the March test). They therefore have access to that place >> electronically. So in principle, they could have attached a spectrum >> analyser and a scope. But they didn't, because it wasn't allowed in pulsed >> mode; they were only allowed to do it in manual mode. >> >> >> >
