Cutoff frequency of high-pass filter

Rise time and 3 dB bandwidth are inversely proportional , with a proportionality constant of ~0.35 when the system’s response resembles that of an RC low-pass filter.

Bandwidth, also referred to as Frequency Response, is an indication of a displacement sensor’s ability to respond to changes in the measured displacement . It is measured at the -3dB point and gives indication of: How the output changes relative to the frequency of a vibrating target.

Bandwidth is given as the range between these frequencies. For a high pass filter, the cut off frequency will define the lower value of bandwidth . For a low pass filter, the cutoff frequency will define the higher value of bandwidth.