Solartron 1255 FRA, msmt speed?

[Rudolf Potucek]

Hi!

I was wondering if anyone had experience with the
Solartron 1255 Frequency response analyzer. I am
trying to do measurements in the MHz range and
I am finding that the time spent per frequency
seems to be about 1/2s even though in the MHz
range that's millions of oscillations. Has anyone
had success at getting better performance in
this frequency range?

Rudolf

[Albert.Geven]

please remember that the 1255 is an old instrument and has a slow setup and readout.

[n2mp]

Hello,

I think you should first check the values of the following options in your
software :
* Number of cycles performed before effective cycling measurement.
* Waiting (stabilizing) time before effective cycling measurement.
These options help you to get more accurate measurements.

But, which kind of electrochemical phenomena do you expect to measure in MHz
range ?

Best regards.


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"Rudolf Potucek" a ecrit dans le message
news: a5jtru$1t1i$1@nserve1.acs.ucalgary.ca...
| Hi!
|
| I was wondering if anyone had experience with the
| Solartron 1255 Frequency response
analyzer. I am
| trying to do measurements in the MHz range and
| I am finding that the time spent per frequency
| seems to be about 1/2s even though in the MHz
| range that's millions of oscillations. Has anyone
| had success at getting better performance in
| this frequency range?
|
| Rudolf
|

[Rudolf Potucek]

In sci.chem.electrochem n2mp wrote:
: Hello,

: I think you should first check the values of the following options in your
: software :
: * Number of cycles performed before effective cycling measurement.
: * Waiting (stabilizing) time before effective cycling measurement.
: These options help you to get more accurate measurements.

Good point ... even though I thought the default was 0.2 cycles it may
not be!

: But, which kind of electrochemical phenomena do you expect to measure in MHz
: range ?

There are two answers to this. The facetious one is that Andrzej Baranski
at Usask is actually doing thin film work at these frequencies although
I have not read up on what he is actually doing. The honest answer is

that I am abusing the system for other things.

Rudolf