a large bladder positioned over the sensor mat of FIG. 3 in a preferred embodiment of the calibration process of the occupant classification system of FIG. 2. [0040]FIG. 11B is a schematic side view of the large bladder of FIG. 11A. [0041]FIG. 12A is a schematic top plan view of a vehicle seat showing a typical deflection pattern of a 5th Percentile Female. [0042]FIG. 12B is a schematic cross-sec