A filter assembly for use with a static-dynamic piezoresistive pressure transducer that measures low amplitude, dynamic pressure perturbations superimposed on top of a high static pressure through the implementation of a low-pass mechanical filter assembly is disclosed. The knock detection window is defined by at least two overlapping identical duration sub-windows, and the extent of the sub-window overlap is changed to adjust the duration of the knock detection window. Further, the absorbent articles can be pulled on andor off as a pant. The short cavity diode-pumped laser may include a laser diode modulator and a laser coupled to the laser diode modulator having a cavity lifetime of less than about 100 picoseconds. An actuator is energized to reduce the gap between the electrical contacts, causing the two liquid metal droplets to coalesce and form an electrical circuit.