PIEZOELECTRIC ACTUATOR

摘要

There is provided a high-reliability piezoelectric actuator including an external conductor formed of a thick-film conductor, wherein faulty conduction of the external conductor is not easily caused. A piezoelectric actuator 1 includes external conductors 5 and 6 formed on an outer surface of a piezoelectric component 2, wherein the external conductors 5 and 6 each include a thick-film conductor and a conductive reinforcer 9, the thick-film conductor, the thick-film conductor is provided with a first thick-film conductor 7 formed on the outer surface of the piezoelectric component 2, second thick-film conductors 8a and 8b which are formed on part of an outer surface of the first thick-film conductor 7 and which are in surface-contact with the outer surface of the first thick-film conductor 7, and the conductive reinforcer 9 attached to outer surfaces of the second thick-film conductors 8a and 8b.