06-30-2018 04:05 PM
Hello guys, I need a little help!
I work with a National Instruments Data Acquisition Device and I use the digital multi meter (DMM) part of the device with two capacitive sensor ( I use this part of the device because i work with industrial voltage). They are come into the same input.
I use Mydaq Assist to visualize when the sensors get sign and I put a Waveform Chart and a Led to see it works.
I would like to measure the passing time in seconds between two rising edge and i need some help to solve this problem.
Solved! Go to Solution.
07-02-2018 04:30 AM
Hi Greg,
store the current timestamp with each rising edge of your pulse.
Subtract previously stored timestamp from current time to get the delay between the pulses…
Hint:
- setup the DAQmx task to use a known sample rate and read more than just one sample per DAQmxRead call
- there are functions to determine peaks and their distance in the signal processing function palette…