Converting data from frequency to mass but nothing shows up on waveform chart

[Sicelo]

I am trying to convert frequency data from labview to mass in ng. I have a conversion formula. I used the conversion formula and wired the output data to a waveform chart.

So, I think I did everything correct when trying to convert frequency values from the QCM to mass values in ng%2Fcm^2. What I did was convert the frequency data into mass data as a function of time by calculating delta frequency and multiplying by the appropriate scalar. I approximated the area of the quartz crystal to be 1 cm^2. I wired the data to a waveform chart (called mass (ng%2Fcm^2) as shown in the block diagram I attached. The problem is that when I run the vi nothing shows up on the mass waveform chart I just created. I played around with changing the scales but absolutely no data is recorded when the vi runs. I don't know why that is the case. 

Thanks.  -Sicelo

[T-REX$]

Hello Sicelo,

It sounds like your frequency chart is behaving properly, is that correct? Have you tried creating a probe on the wires between the frequency and mass charts to see where the data is (possibly) being lost?

[Sicelo]

Hi guys.

Thank you so much for your help. I succeeded in converting the frequency data to mass. I posted a new question about a new problem I am encountering. My vi does not run when I run it even after everything is properly connected. 

My new message is posted under "vi does not sense signal from instrument"

Any help will be highly appreciated.

Thanks.

-Sicelo