An exhaust system for use with a diesel engine includes a diesel particulate filter configured to capture particulate matter exhausted from the diesel engine, a first sensor operable to detect a particulate matter accumulation level within the diesel particulate filter, and a second sensor operable to detect an ambient temperature of an environment surrounding the diesel particulate filter. The distance of the head of the occupant from the instrument panel is divided into an inflation suppression area, an inflation area without timing delay and an inflation area with timing delay. On this MEMSIC processed die, a first three dimensional structural component is formed using standard lithographic processes and electrodeposition of a structural layer. Preferred caps and bases can be formed in the same shape or substantially so, and are racetrack-shaped. Some embodiments simultaneously generate the first and second sets of span points by alternatively determining the points of the sets based on propagation of input wavefronts and associated output wavefronts relative to previously determined points. Penetration of the cutter plasma into the coupons is measured directly.