Analysis software FRF

frequency response function measurementtestEDM

Frequency Response Function (FRF) is a commonly used measurement type of the Dynamic Signal Analyzer. FRF is defined as the ratio of response i.e. acceleration, velocity, or displacement with respect to the excitation force which is the reference. To measure the FRF, there are three different methods using EDM DSA software: FFT based Swept sine based Multi-resolution spectrum based FFT Analysis Solutions With FFT based FRF measurement, typically broadband excitation, i.e., impact pulse, or white noise signal is used to excite the device under test. This method is commonly used and easy to set up. Swept Sine Based With Sine or Swept Sine based excitation, the energy concentrates in the current frequency and will yield the FRF with high fidelity.