precision photoemission assessment.

[chaosdrone]

who would hate a test for free anyway 

 

[Alex Tsekenis]

I hate this about academic environments. Anyway, you could claim that a preliminary goo must be produced to verify the feasibility of a method to measure the conductivity of the goo.

 

[chaosdrone]

:-[ yeah but even the low accuracy synthesis of a preliminary goo would require a specialized polymers lab, you know .. goo can't be prepared anywhere but in goo-labs 

 

[Alex Tsekenis]

Your toilet fits the description

On a different note, I don't think anyone here can readily help you with the theory behind your goo without pre-reading/research. If you can synth some goo, we can help you develop a conductivity meter.

 

[chaosdrone]

;D lol

well, someone advised me with measuring the shot-noise phenomenon, by the use of a current integrator.

and this idea is so appealing to me, sounds like it takes down the measurement process to the edge.
have found much circuit schematics for this though, yet i wonder which particular design should i adopt, for a simple precision current integrator?  :

 

[Alex Tsekenis]

You will have free electrons but you will not have current. You will need to accelerate them in an electrostatic field. The current integrator will integrate the tiny
current over time, thus measuring charge. If you know the time, you can work out the number of electrons freed.

The current integrator will probably take the form of an op-amp with a capacitor in the negative feedback path and a grounded non-inverting input. Your output will be -(1/C) x integral of (Iin) dt [Volts].

But you need to get those electrons moving.

 

[chaosdrone]

yeah five volts from a switching PS would do, across a highly resistive assembly  , i need to choose some accurate op-amp model though  :-\

 

[Alex Tsekenis]

Here is a hard question:

What magnitude of current is expected under 5 Volts across your goo?

 

[chaosdrone]

I answer this  :

well the pristine PANI should exhibit a conductivity in the magnitude around 10^8 .. well but that's not all .. i'll further need to optimize the suspended phase volume fraction and the physical dimensions of the composite block in order to optimize the current magnitude.. .. I am intending to start calculating that briefly.  :-X

 

[Alex Tsekenis]

physical dimensions of the composite block

We need to know that to calculate the current flow since you have an estimation of conductivity. Good luck!