Rosemary Ainslie circuit demonstration on Saturday March 12th 2011

[Rosemary Ainslie]

Groundloop, if you're still reading here - and guys,

We've just finished those tests using capacitors.  Unfortunately it does not work.  The oscillation
holds for less than a minute and then collapses to zero. 

Here are the waveforms

Kindest regards,
Rosemary

[poynt99]

We've just finished those tests using capacitors.  Unfortunately it does not work.  The oscillation holds for less than a minute and then collapses to zero. 

Here are the waveforms

Kindest regards,
Rosemary

Capacitor start voltage = 37.6V @ 17:47:47
Capacitor end voltage = 32.0V @ 17:48:32
Voltage drop over the 45 seconds = 5.6V

Evidently the circuit functioned normally for a short period, and there was no recharge.

The capacitor value was not given, but for interest sake assume 1000uF:

The energy used then is 1/2 x 1000uF x (37.6² - 32²)
= 194.88mJ, and the average power supplied over the 45 seconds = 4.33mW.

.99

[poynt99]

btw,

Power = Energy / Time =>
P = E/t =>
W = J/s => therefore
J = W x s

.99

[Groundloop]

Groundloop, if you're still reading here - and guys,

We've just finished those tests using capacitors.  Unfortunately it does not work.  The oscillation holds for less than a minute and then collapses to zero. 

Here are the waveforms

Kindest regards,
Rosemary

Rosemary,

Thanks for taking time to test capacitor(s) on your new circuit.
May I ask the size and type of the capacitor(s) you tested?

GL.

[Rosemary Ainslie]

Capacitor start voltage = 37.6V @ 17:47:47
Capacitor end voltage = 32.0V @ 17:48:32
Voltage drop over the 45 seconds = 5.6V

Evidently the circuit functioned normally for a short period, and there was no recharge.

The capacitor value was not given, but for interest sake assume 1000uF:

The energy used then is 1/2 x 1000uF x (37.6² - 32²)
= 194.88mJ, and the average power supplied over the 45 seconds = 4.33mW.

I can't comment.  Just don't know anything about capacitors.  I'm not sure that it took 45 seconds
to collapse.  I think it was rather quicker than this.  It takes a while for each screenshot to
download. 

Groundloop - I'll check on that capacitor number.  I forgot to make a note.  I'll tell you during the
course of today.

But guys - before anyone gets too carried away here - in retrospect I think we had open circuit
conditions.  From memory the circuit was still connected to the battery terminals.  Surely that
wouldn't work?  I'll need to check on this as well.  Actually I think I've made a mistake.  Sorry.  I'll
get back here.

Kindest again,
Rosemary