Here is the image of the sum of two equal amplitude sinusoidal waves whose frequencies differ by 10%.ermmm.. the picture didn't show up
Sorry!ermmm.. the picture didn't show up
And it's still not thereSorry!
George has posted an equally good picture. But just to prove to everybody that I'm not a completely stark raving lunatic , here is the image I meant to include:
http://www.picotech.com/experiments/sound_interference/graphics/frequency_image.gif
Feed a sinusoidal signal with period T1 into channel 1 of the scope and a sinusoidal signal with period T2 into channel 2 of the scope. If you use function generators that have digital frequency readout, then the periods can be calculated from the frequecies. If your generators don't have digital readouts, then maybe you should use the scope to determine periods T1 and T2.Ok I just realized that T_bar is just the average of T1 and T2, is there a specific way to know this in an osciloscope? Or do I just simply measure T1 and T2 and do the math on paper?
Read the last two paragraphs of my previous post.no way to see it on the scope?