trip data filtering
Hello, dear comrades! I am facing a problem like a novice in data acquisition: there is a test bench which consists, apart from all the rest, two displacement sensors, acquiring data from the displacement of the rotor over time. the data that I get is loud, so I had to filter it. I'm using butterworth topology of a filter and a default break break high-frequency and low startup parameters. It's a bandstop filter because I checked the signal in the frequency domain and found the noise bandwidth. a few words on the subject: there is a metallic cyllinder, I use to test the sensors. so, when I don't move the object, the sensor shows a straight line, which means that the signal that I need a frequency 0. This means that any change in the frequency domain would indicate the frequency of the noise. I discovered that it is between 4000 and 4250 apprx. but no matter how, I tried the signal would not be filtered. the fact is when I send no dynamic data (lol-orange line) to the waveform on the filter it shows ok but the signal does not change over real time. so, I built a waveform taking into account features such as t0, dt of a form of initial wave, but after that I got an even more noisy data. It might be ive been trying to solve the problem for too long, I stuck to some obvious point, but I don't have any ideas, any help would be appreciated. Thank you very much!
Here we go...
Tags: NI Hardware
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