I just liked the video even before watching it. That’s the quality of the content you deliver man. Keep up the good work always 🥳🥳🥳🥳🥳👍👍👍👍👍

Clear explanation of FFT. Thank you sir

Thank you so much for this video Sir.

Amazing!!!

Thank you this thing saved my lots of time

very nice explanation!!!!!

Thanks very much

thank you sir

Thank you for your value lecture,Dr.How can i determine these frequencies in this code 50Hz (pump speed) 350Hz (blade pass frequency ?as you know Fmax=Fs/2 how can i determine it ?

thx for sharing, but how if i have a signal from accelerometer and i wanna transform with fft to know freq and amp?

Thank you. How can i get amplitude Values of f1 and f2 and f3 and seve theme?

Is it necessary that in FFT transformation all the frequencies peak must be integer harmonic or fundamental harmonic? I mean at 9:06, you said 15Hz is first harmonic and other ones are fundamental harmonics. Can “n” in general formula of Fourier transformation be in decimal? Because every time the frequencies wouldn’t be a multiple of the base frequency.

When you use the vector V, according to Simple Harmonic Motion, I believe it is the displacement history, right?

%% Fourier transform of vibration signal clc; clear all; %% input signal frequency=10 amp=5 dt=1/ (frequency*20); time=0:dt:2000*dt V=amp*sin(2*pi* frequency*time); %% FFT fs=1/dt; 11= length(V); fft V= fft(v,11)*(2/11); abs V=abs(fft_V); %% FR vector freq=0: (1/time(end) ): fs/2-(1/time(end)) %%plotting plot (ytime,V) ylim([-10 10]) figure plot(freq,abs_V(1:length(freq))) ylim([0 10])

%% Fourier transform of vibration signal clc % clear command window clear variables % clear all variables from workspace %% input signal frequency=10; amp=5; dt=1/ (frequency*20); time=0:dt:2000*dt; V=amp*sin(2*pi* frequency*time); %% FFT fs=1/dt; L1 = length(V); fft_V= fft(V,L1)*(2/L1); abs_V=abs(fft_V); %% FR vector freq=0: (1/time(end) ): fs/2-(1/time(end)); %% plotting plot (time,V) ylim([-10 10]) figure plot(freq,abs_V(1:length(freq))) ylim([0 10])

brother you said we use FFT to know the frequency of signal but you give it 10

How to get data from fft analysis tool in powergui block.

Hello Bro can u help Plz solve a problem and send plz

You repeat over and over again that your sampling rate is 2000 when it is 200...

%% Fourier transform of vibration signal clc; clear all; %% input signal frequency=10 amp=5 dt=1/(frequency*20); time=0:dt:2000*dt ; V=amp*sin(2*pi* frequency*time); %% FFT fs=1/dt; L=length(V); fft_V= fft(V,L)*(2/L); abs_V=abs(fft_V); %% FR vector freq=0: (1/time(end)): fs/2-(1/time(end)) %%plotting plot (time,V) ylim([-10 10]) figure plot(freq,abs_V(1:length(freq))) ylim([0 10])