LabVIEW
pll lockin starter kit problem
Hello,
Sorry my english isn't good because i'm french 
I use a PLL starter kit to recup a signal composed by a signal at the frequency f and an other signal at the frequency 3f. I want to recup the amplitude 3f signal in phase and with phase of 90°.
To do this, i recup the imaginary part and the reel part of my signal because my imaginary part of the signal have a phase of 90° and the reel part is in phase.
I use an analyseur harmonics to check my results and i have the same value but my reel and imaginary part is not good because the value of the reel and imaginary part always change when i test my VI
I think there are a problem with my sampling frequency or my number of sample but i don't have find my problem.
This is my 2 VI :
Hello clemMP,
I didn't really understand what you want to do but I think you should start from scratch with a continuous acquisition. Look at the attached picture in order to see how continuous acquisition works. Once you understood the functionnality, add your functions step by step and test your VI every time you add something.
Best regards
Sorry but there is no function " edit " for my message.
Si vous parlez français, ça serait plus simple à expliquer ce que je souhaite 
The Read VI is not in the while loop, that's why I show you this example. This is an english topic so if you want to speak french you should ask here 
: http://forums.ni.com/t5/Discussions-au-sujet-de-NI/bd-p/4171
