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i dont know of one actually. the mcw6002 that is. when i review the block i will create one though.
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Thank´s. It was only to compare my calibrations. I´m testing four wb´s.
Here I posted some graphs.
For example the following graph I did it for accident, but I liked the result after seeing, very symmetrical
Yellow is the flow in l/h, dark blue is a pump-out pressure en mH2O. The line brown is the restriction in watts between the pump-out, flow sensor and exit of the block, and the rose line is a pressure drop in the wb.
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Maybe I'm not understanding how you have the sensors connected, but why is there a 100Hz sin wave in there?
Also, you have a lowpass wired up before the ADC right? Lowering the cuttoff might help those spikes you're getting. That or you could do it in software.
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I don´t have any filter. In this case, I prefer that the sign goes direct to the ADC.
I am using this piezometric tube and a small diameter pipe of silicon to connect it with the sensor.
Since Roscal has explained, they are the possibilities that exist but very possibly a mixture exists of both though the type of engine prevails with his number of couples of poles.
In this type of engines, the frequency of nourishment and the number of couples of poles they determine the speed of the impeller of the pump. All those more couples of poles it has, minor will be the number of revolutions.
For example for 1,2 and 4 couples and 50Hz, the revolutions would be of 3000,1500 and 750rpm. rpm´s = 60 x frec / pairs poles
It is possible that this engine has only a one couple and that every 10msec, the rotor turns half a return coinciding with the 3000 rpm's, but I am not sure of it, is only a conjecture and I did´t do any more checkings after doing the graph
In this graph you can see the functioning of a dc pump, with a wired rotor. The waves are not so clear. This wave might be owed only to the spades of the rotor.
Another curious graph would be this. It is taken across a pipe of silicona of 10mm of inside diameter with a length of 2.55m. I measured when I power on and power off the pump every 1msec.
A delay exists is 50 msec aprox, brought between the sensors. In these conditions, the front of pressure would move to an approximate speed of 51m/seg.
In the left corner, can be see the value in msec
