Frequency Response Analysis (also referred to as Transfer Function Analysis) measures the output spectrum of a system relative to a stimulus, and is used to characterize the dynamics of the system under test. The technique measures the magnitude and phase relationship between output and input waveforms as a function of frequency. The input signals may be from a wide range of sensors including acoustic (microphones/sonar), mechanical (accelerometers/displacement transducers), optical (photodetectors), and electrical (amplifiers).
The model 1260A Impedance/Gain-Phase Analyzer is - without doubt - the most powerful, accurate and flexible Frequency Response Analyzer available today. In daily use by leading researchers wherever measurement integrity and experimental reliability are of paramount importance, the 1260A’s solid reputation is frequently endorsed in published research papers in fields such as:
The 1253A Frequency Response Analyzer (FRA) is an instrument that is capable of meeting today's measurement requirements for dynamic system analysis. Using the Single Sine Correlation technique (SSC), it provides precise data relating to the gain and phase between any points in a dynamic system. This instrument enables engineers to perform searching analysis to assess performance of both simple or complex systems.
The 1250E Frequency Response Analyzer (FRA) delivers accurate measurement of gain and phase. The device under test is stimulated by a sinewave and the response analyzed at various points in the system. These responses are then correlated with the stimulus to determine the amplitude and phase relative to the generator. The ratio of the two measured signals can then be used to provide the system transfer function.