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stability of 6221 in high speed measurement

6220, 6221 Current Sources
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lyytek
Posts: 3
Joined: January 27th, 2016, 4:07 am
Country: Germany

stability of 6221 in high speed measurement

Post by lyytek » January 27th, 2016, 4:58 am

I need a stable current source for high speed resistance measurement.

A general description of the usage is: a piece of metal vibrates on the surface of another metal plate, the vibration frequency is ~60 kHz and the contact region is very small (1200 µm X 500 µm). During the vibration period (~50 ms), the electrical resistance of the contact region will change. One of our goal is to measure the resistance changes.

So my question is: will the model 6221 be fast enough to provide a constant current during the 50 ms regarding that the vibration frequency is so high? If not, do you have other product options?

Thanks!

Dale C
Keithley Applications
Keithley Applications
Posts: 2845
Joined: June 10th, 2010, 6:22 am
Country: United States
Contact:

Re: stability of 6221 in high speed measurement

Post by Dale C » January 28th, 2016, 6:42 am

This is a good question.
I think the only way to get the definitive answer is with a demo unit and you try it yourself to see if it can handle this application.
I would connect the local demo pool or local sales engineer in Europe to obtain a demo and give it a try.
Germany
Phone: +49 221 9477 400

lyytek
Posts: 3
Joined: January 27th, 2016, 4:07 am
Country: Germany

Re: stability of 6221 in high speed measurement

Post by lyytek » February 2nd, 2016, 2:24 am

A try would be great! If it is possible, please ask your colleague to contact me @

Institut für Dynamik und Schwingungen
Leibniz Universität Hannover
Appelstr. 11
D-30167 Hannover
Tel.: +49 - (0)511 / 762 - 17558
E - Mail: [email protected]

Or you might send me the contact information of your colleague with whom you've talked about this.

Thanks!

Dale C
Keithley Applications
Keithley Applications
Posts: 2845
Joined: June 10th, 2010, 6:22 am
Country: United States
Contact:

Re: stability of 6221 in high speed measurement

Post by Dale C » February 2nd, 2016, 5:25 am

Norbert Willnecker
498984930777
[email protected]

Norbert is the European application engineer
He should be able to help.
Dale

lyytek
Posts: 3
Joined: January 27th, 2016, 4:07 am
Country: Germany

Re: stability of 6221 in high speed measurement

Post by lyytek » February 2nd, 2016, 7:52 am

Thanks a lot!

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