Additive manufacturing apparatus for manufacturing piezoelectric instrumentation devices with 3D structures

    公开(公告)号:US11844279B2

    公开(公告)日:2023-12-12

    申请号:US17846573

    申请日:2022-06-22

    CPC classification number: H10N30/045 H10N30/053 H10N30/302

    Abstract: An apparatus for fabricating a piezoelectric transducer includes a base and a piezoelectric powder depositor to traverse the base and deposit a plurality of layers of piezoelectric powder on the base. The apparatus also includes an electrode disposed at an end of a boom of which is moveable to a selected location with respect to the base and a voltage source to apply a voltage to the electrode to establish an electric field between the electrode and base with sufficient strength to sinter and pole each layer of piezoelectric material and a controller having instructions to deposit the plurality of layers of the piezoelectric powder on the base and to control a position of the electrode and actuate the voltage source to the electrode to sinter and pole the layer of piezoelectric material at defined locations after each layer is deposited to form the piezoelectric transducer in a selected shape.

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