step wave generation

[Carlos96]

Hi all,

I have a Galvo mirror form Thorlabs, and I want it scan along the x axis, (let’s assume -10°-10°，increment by 1°, pausing 1 sec in between). Because the angle is proportional to the voltage applied to it. Which means the voltage should be also like this:

The question is I really don’t know how to generate this step wave in LABVIEW, please help me with your brilliant idea.

Thanks a lot in advance~

Muchas gracias~

[GerdW]

Hi Carlos,

you just change an output voltage at regular time intervals to generate that "step" output signal…

[Carlos96]

Hi GerdW

 Thank you so much! I think you are right, but i need a lot of small steps, like hundreds. Do I have to change the output voltage one by one?