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High-pass filter - HP/04, LP/04
This device provides brick wall type minimization of spurious minimal frequency phenomena. This tool possibly invalidate data from piezo-electric sources. It has a vibration acceleration signals that supposedly include thermal and strain induced noise elements. The 1/fo two relationship of acceleration versus displacement, and thermal mass constrained these signals to the minimal frequency end of the spectrum appropriately. Also, the filter serves as the boundary fo.