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(a) Nominal displacement amplitude of the LVDT as a function of frequency, with target amplitudes of 0.05 and 0.1 mm. (b) Measured displacement amplitude of the LVDT as estimated by the accelerometer as a function of frequency. (c) Ratio of the nominal displacement amplitude to the measured amplitude of the LVDT. This ratio indicates the frequency response of the LVDT, which is seen to be flat between around 75 and 275 Hz.
