In the non-destructive deformation range, frequency sweeps are typically used to describe the time-dependent behaviour of a sample. Low frequencies are used to imitate sluggish motion on long timescales or at rest, while high frequencies are used to represent fast motion on short durations. Frequency sweeps have been successfully used in practice to obtain data on the behaviour and internal structure of polymers as well as the long-term stability of dispersions.

Many users use the maximum to minimum frequency measurement method because it frequently yields a shorter testing period because the controller may be adjusted more quickly. If, on the one hand, the measurement occurs inside the LVE region and, on the other hand, the sample exhibits no change throughout the test time, the same result is achieved for either approach.

By examining a sample across a wide range of frequencies, the user closely monitors the viscoelastic behaviour and molecular structure (molecular weight and molecular weight distribution). Additionally, a number of viscoelastic characteristics, such as complex modulus, elastic modulus, loss modulus, complex viscosity, phase angle, etc., are determined at each frequency due to the frequency-dependent behaviour of the sample.

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