Piezo horn with carbon ink electrodes

Details Piezo horn with carbon ink electrodes Piezo horn with carbon ink electrodes

H - Electricity

04

R

H04R 17/00 (2006.01) G10K 13/00 (2006.01)

Patent

CA 2095667

Abstract of the Disclosure: A piezoelectric horn incorporates a cylindrical or disk-shaped wafer of piezoelectric ceramic material, which has two spaced apart planar surfaces. On one of the planar surfaces, a continuously extending layer of carbon ink is deposited to form an electrode. On the other of the surfaces, at least two separate spaced-apart electrodes are formed of deposited carbon ink. The ink on both surfaces of the disk is hardened. The disk is attached to a metal cylindrical or disk-shaped support member with the dual electrode surface extending away from the metal support member. Electrical energy can be applied to the ceramic disk using one or more of the surface carbon ink electrodes, as well as a region of the metal support. The transducer structure can be supported in a plastic housing or supported on a printed circuity board and retained in position by a surrounding housing.

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