Sealing structure of an electrostrictive element.

摘要

An electrostrictive device having a sealing structure of an electrostrict element has a tubular member for housing the electrostrictive element. A pair of lid members are attached to the top and bottom surfaces of the electrostrictive element. The lid members are flexibly combined to the tubular member by using an elastic sealing means such as silicone resin and O-ring. The side surfaces of the electrostrictive element is spaced apart from the inner wall of the tubular member due to the lid members. The foregoing structure enables a reliable hermetic seal without impairing the mechanical displacement of the electrostrictive element.