Analog Input Between Encoder Pulses

[ruben_fermi]

Our application requires reading an analog input channel between encoder pulses and perform an inline integration of the analog data acquired between pulses. We would like to have a constant sample rate (say, 100 KHz). The time between pulses is not constant. We need to keep integrating the analog data between pulses for several revolutions, and we don't want to miss any data points. Is there an easy way to accomplish this using NI hardware and software?
Thanks!

-- Ruben

[JoshuaP]

NI hardware and software is capable of performing this. I would suggest purchasing an E-Series DAQ device and LabVIEW 7.0 (at least the professional version). The DAQ hardware is capable of performing an analog input and counter measurement at the same time using the same digital trigger. This would allow you to acquire the analog data and continuously measure the period of your encoder pulses. After you are finished or during the acquisition you can analyze the data. You can use the period data to segment you analog input and then use the math tools in LV integrate the waveforms.

I hope this helps out.

Joshua