Time vs. Frequency September 21, 1999 Ron Denton. Time Domain vs. Frequency Domain. What is the Time Domain ? How is the Time Domain Measured ? What is the Frequency Domain ? How is the Frequency Domain Measured ? What does this have to do with Vibration ? How are the two domains related ?.
If the amplifier range of the measuring system is not set correctly, it will “clip” the signal and “chop off” the highest and lowest parts of the signal.
This is not good !
It means you are trying to turn a sine wave into a square wave.
Just as clipping is illegal in football -in data acquisition, clipping the time data will cost you by causing invalid data (spurious signals) in the frequency spectrum.
Spurious Signals Added