TEF Measurements The Time-Energy-Frequency (TEF) measurements and analysis is a technology that uses a swept sinewave test signal. The TEF device is controlled by a personal computer. The available domains in TEF measurements include energy-frequency, energy-time,...
Frequency and Wavelength Frequency (f) is the time rate of a periodic signal. The unit is Hz (Hertz). Pure tone or sine wave has a single frequency. Sound and noise usually are not pure tones. Fourier Transform shows that the complex signal can be synthesized from...
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