| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide a device for controlling the operation of a valve body by outputting an amplified displacement amount of a piezo-electric element in an arbitrary direction. <P>SOLUTION: A pressure chamber 4a in which a predetermined area is pressed with the displacement amount of the piezo-electric element 3 and a conductor 4b extending from the pressure chamber are connected. One side of an expandable tube 4c is connected to the opening end of the conductor, and a cavity formed by fitting a driving piece to the other end is filled with liquid 5 and hermetically sealed, and the piezo-electric driver 2 is formed by generating the displacement amount in which the displacement amount of the piezo-electric element is amplified to the driving piece. The driver is used for a flow control valve of liquid by applying the displacement of the driving piece on the valve body, and used for a pump for causing a liquid current by pressing a solution in the flow control valve as an alternative mode. <P>COPYRIGHT: (C)2005,JPO&NCIPI</p> |
