Phase angle measurement method for two high frequency sinusoidal signals, with applications in measurements of physical values, wherein a beat signal is generated by interference between the two digitized signals

摘要

Method for measuring the phase angle between two high frequency sinusoidal or digital signals in which the signals are digitized and used to generate a digital beat signal, by use of a further VHF, UHF or super high frequency (SHF), signal as a mixing signal. The phase angle between the two signals can then be used as a measurement value.