A method and system for introducing supplemental material to an exhaust aftertreatment device, including: a delivery system, an air pump operable to input pressurized air to the delivery system, and a turbosupercharger of an internal combustion engine operable to deliver pressurized air to an inlet of the air pump. High voltage switches 3-1 to 3-32 for determining an aperture by selecting eight pieces from among transducer elements 2-1 to 2-32 to which transmission pulse is applied, and low voltage switches 11-1 to 11-16 for selecting 16 pieces from among the transducer elements 2-1 to 2-32 to receive ultrasonic echo are provided individually. The circle is divided into n blocks, each of the blocks is divided into m frames, and ID information is recorded in each of the frames with k channel bits. The sphere includes a designated zone on the sphere interior surface.