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Perhaps I may be able to shed a bit of light on the situation.
Below I have extracted Tables II and III (Source Power Averages & temperature Baselines respectively) and the Load Resistor temperature logsheet from the paper. In them I've highlighted the pertinent values I believe the Ainslie team may have used to come up with the apparent COP = 4.1.
From Table II we have 1.3W, and from Table III we have 5.33W, giving us the COP of 4.1.
It should be noted that none of these values are either referred to directly, highlighted, or stated anywhere in the paper, and that the reader is tasked to do what I have shown here in order to make a reasonable conclusion regarding the tests results and the claim of improved COP. It is hoped I assume that the reviewers will not only be inclined to perform this task, but that they will also choose the correct values.
IMO it would have been well worth the effort to include basically what I have done here in the paper's conclusion. Surely it could only help in getting one's paper reviewed beyond the conclusion, which is probably where most reviewers go right after reading the abstract anyway.
A few words about Table II. This table consists of a number of measurements or data dumps taken at time base settings of 2us and 40us, every 6 minutes for about an hour's time. From the results, one can see that the values deviate over a range of about 600%, which normally and statistically, would have to be discarded as unusable data. The Ainslie team however feels that several measurements were required in order to capture the existence of a fleeting energy signature (called "the harmonic") that only appears when viewing the scope display at a 40us time base setting, and only when the circuit adjustments are at "optimum". It is this "harmonic" the Ainslie team feels is responsible for the vast deviation in power measurements, and hence the reason for the multiple data dumps and result averaging.
Those who have had experience with a digital Tek scope can tell you that these fleeting wave patterns as observed by the Ainslie team appear all the time, no matter what wave form you are measuring. If the time base is set long enough in comparison to the period of oscillation, they will most likely appear. The resulting pattern character is dependent on the wave form shape and frequency, and the scope sampling frequency.
Also of note is the record length capability of the scope. For the TDDS3054C, the maximum record length is 10k samples. This essentially establishes the sample rate you will get with any given time base setting. As such, lengthening the time base reduces the sample rate, and eventually the scope can not capture and display the measured wave form with any reasonable fidelity. Higher-end scopes have record lengths up to 1MEG, which facilitates more accurate data dumps (and bigger files), and a more accurate real-time display of the wave form (i.e. less "patterning").
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Topic: The Rosemary Ainslie Circuit (Read 459560 times)
