- #31
Padford
- 53
- 0
damn, well, let's cut the problem down, a hellovalot
in regards to the working-out equations, i managed to work out them for the 1st four fixed resistance values. but that last two, which i shall attach again seemed not to work, but i believe i justifed these well:
"This sensor was the one I took man more values for, it seemed, while I was setting the sensors up, to be the most sensitive, though having done the result analysis and gathering, I see I was incorrect, but I think that taking all those results would give a more accurate graph – you can see, however how many anomalies there are, this, shall be due to either unsystematic errors, systematic errors, or the fact, again the fluctuations are caused by the sensitivity of this particular sensor. The sensitivity of this sensor was 25.1Vcm-1, which is good, but the great thing about this sensor is that it worked effectively over a comparatively long range, even after I stopped the voltage had not reached 4.5V (the maximum battery output).
"The formula tells us that, V = 25.1(LOG D) 0.05 – 24.04, this is actually quite incorrect, as you can see. It seems that the idea behind the relationship may only function correctly for those sensors with a relatively low fixed resistance. Though, if a decent relationship was found between the two values, then this sensor would be very effective, and efficient."
This set of results, and indeed all the results and tables are prime example of information displaying an “Empirical Relationship” they describe certain occurrences based on experimental observations, which are not fully understood yet. However, as you can see, these graphs and results can show us the relationship between voltage and distance from the point source quite effectively, though lacking is the understanding of regression techniques ."
is that ok, so i don't have to go into details about rectifying the formula with the polynomial regression techniques. i think i understand wat I'm talking about, so that's useful...
also, that foumula relating light inensity and voltage output together, where'd ou get it from?!
i used a 12V light buld 24W, and fixed resistances at 1kOHM 2,2, 22, 47, 100 and 470 - i think i WAY over-did it on the whole result taking thing, hence my finalk write up being 18 pages...
in regards to the working-out equations, i managed to work out them for the 1st four fixed resistance values. but that last two, which i shall attach again seemed not to work, but i believe i justifed these well:
"This sensor was the one I took man more values for, it seemed, while I was setting the sensors up, to be the most sensitive, though having done the result analysis and gathering, I see I was incorrect, but I think that taking all those results would give a more accurate graph – you can see, however how many anomalies there are, this, shall be due to either unsystematic errors, systematic errors, or the fact, again the fluctuations are caused by the sensitivity of this particular sensor. The sensitivity of this sensor was 25.1Vcm-1, which is good, but the great thing about this sensor is that it worked effectively over a comparatively long range, even after I stopped the voltage had not reached 4.5V (the maximum battery output).
"The formula tells us that, V = 25.1(LOG D) 0.05 – 24.04, this is actually quite incorrect, as you can see. It seems that the idea behind the relationship may only function correctly for those sensors with a relatively low fixed resistance. Though, if a decent relationship was found between the two values, then this sensor would be very effective, and efficient."
This set of results, and indeed all the results and tables are prime example of information displaying an “Empirical Relationship” they describe certain occurrences based on experimental observations, which are not fully understood yet. However, as you can see, these graphs and results can show us the relationship between voltage and distance from the point source quite effectively, though lacking is the understanding of regression techniques ."
is that ok, so i don't have to go into details about rectifying the formula with the polynomial regression techniques. i think i understand wat I'm talking about, so that's useful...
also, that foumula relating light inensity and voltage output together, where'd ou get it from?!
i used a 12V light buld 24W, and fixed resistances at 1kOHM 2,2, 22, 47, 100 and 470 - i think i WAY over-did it on the whole result taking thing, hence my finalk write up being 18 pages...
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