Multifunction DAQ

cancel
Showing results for 
Search instead for 
Did you mean: 

Converting Analog Outputs to Position Values Using a Piezo Controller

Hello,

 

I am working with the Piezo Stack Amplifier (from Newman), 3 Channel, Open-loop Position Control (Model NPC3) to translate the controller's analog output to position values in microns such that an external nanopositioner can be controlled. I am using an external DAQ from National Instru,ents and the National Instruments LabVIEW software to convert/transmit the analog signals to the nanopositioner, but I am getting issues with the error in these values. The value that the Piezo reads for all 3 axes are roughly 0.2microns different from the value read by the analog input that has been converted to a position value. Would you have any idea how to use the Piezo to convert the analog output to position values?

 

Please let me know if you have any insight!

0 Kudos
Message 1 of 2
(329 Views)

Have you considered the Analog Input and Output accuracy specifications and your position controller?

 

Have you attempted to calibrate the position control system, including your DAQ as a System?

Santhosh
Soliton Technologies

New to the forum? Please read community guidelines and how to ask smart questions

Only two ways to appreciate someone who spent their free time to reply/answer your question - give them Kudos or mark their reply as the answer/solution.

Finding it hard to source NI hardware? Try NI Trading Post
Message 2 of 2
(276 Views)