Real time graphic of analog input in sbRIO-9631

[SmErT]

Hi,
Sorry for my English.
If allows I have 2 questions about working with sbrio-9631 Board :

1. sbrio-9631 Boardhow to output the analog signal value in real time on XY GRAPH?

for example, I took the analog input 24 (AI24). a potentiometer is connected to it.
I tried to do something, but it didn't work. show test1.7z

1. I have a piezopolymer sensor with these characteristics:

piezopolymer sensor characteristics

• Capacitance:11.12pF
• Average sensitive 52 pC/N
• Resistivity >20 Mohm

  Is it possible to connect this sensor directly to the analog input of sbRIO-9631 Board?

thanks in advance for the answer.

[nanocyte]

I saw this in the data sheet:

A wheel load of 400 pounds will produce a minimum output signal of
250 mV, at 70°F and 55 mph for a proper installation

Which is promising. It might work fine out of the box. My only concern is that I didn't see an output impedance. There's a small chance you'll need an op amp to buffer the signal.

[SmErT]

Thank you so much nanocyte!!! I used tl071cp low noise JFET input, and high input impedance.

[nanocyte]

I'm not sure that that op amp would have a higher impedance than the 9631 so you might want to try without. But, if it works, it works!

[SmErT]

Nanocyte thank you for your advice, for now I can not test, on monday I'll see what it.