Please help? Use Google Chrome if you cannot see the question. I am doing a spik
ID: 3536595 • Letter: P
Question
Please help? Use Google Chrome if you cannot see the question.
I am doing a spike check automation program in Labview for an internship. I am trying to detect the peaks and valleys from a probe test on a wafer. I am new to LV so any help is appreciated. The probes are attached to the wafer and connect to an oscilloscope. Right now finding the peaks and valleys are done manually but take a let of time from one pin. My program has to optimally run for 30 seconds and, at every interval, of let's say 20microseconds, has to take the worst case scenario for the peaks and take the screenshot from the oscilloscope and save it until the worst case scenario in the next block on 20 microseconds until the 30 seconds are up. I am using LV2010. I don't have experience with LV before. I have researched and found a VI called waveform peak detector which seems helpful but I am not sure how to save a screenshot at each interval. I am also unsure on what to put in a loop so my program can run continuously for 30 seconds with stopping. I also have the instrument drivers for my particular oscilloscope so I can control the scope from my computer and LV program. Any help is appreciated and thanks in advance for your assistance.Explanation / Answer
this we are using LabVIEW 8.5.1. I am relatively new to labview and have had no experience of using to before. We are trying to integrate four voltage signals produced by an electromagnet, straingauge, optical sensor and a proximity sensor. We have already developed signal conditioning for these tests and now wish to put them into labview.
Our plan is to use peak detection on each of the tests so that labview can detect peaks which correspond to different coin types, provided they meet set criteria for each coin. Then to combine these either using logic or mathscript to produce a Boolean output for each coin.