Pico Technical Support and Discussion Forum

chrisruss · User Joined: 17 May 2007 Posts: 2 Location: aUSTRALIA

Gents, we have a Picoscope 3424 and plan to do some work with an accelerometer - the aim is to measure frequency and displacement of a vibrating table (for concrete compaction). Can the standard software do this kind of analysis? Frequencies range from 20 to 60 Hz and displacements around 1mm

Regards

Chris Russ
Austrak

ziko · Posted: Thu May 17, 2007 9:50 am Post subject:

Hi and thank you for your post.

I would need to find out more about your experiment but this dose looks like something that can be easily achievable with the 3424. If you can provide the following information:

1) What your inputs are?
2) How quick do you want to sample?
3) How long you want to sample for?

The more information you can provide, the more I will be able to help you.

Kind regards.

Ziko

chrisruss · User Joined: 17 May 2007 Posts: 2 Location: aUSTRALIA

Ziko,

1 input from a single accelerometer (vertical acceleration)
Sample rate - I think between 2 to 5K would be enough
Sample duration - a fews sconds would be ample

Regards

Chris

email is cruss@austrak.com

ziko · Posted: Fri May 18, 2007 11:30 am Post subject:

Hi from the information you provide I would say that yes you can do this,

I would recommend using PicoLog and using fast block mode, you can also trigger on it.

Try for example a timebase of 410us and 50000 samples, this will give you 20 seconds of results, depending on the voltage you might get out of the accelerometer I would choose you the closest range to the maximum amplitude to give a good accuracy.

Have a play around with it and let me know if you have further questions.

Kind regards

Pico Technology

Pico Technical Support and Discussion Forum