Double serrated piezoelectric transducer
    1.
    发明授权
    Double serrated piezoelectric transducer 失效
    双锯齿状压电换能器

    公开(公告)号:US4156158A

    公开(公告)日:1979-05-22

    申请号:US825514

    申请日:1977-08-17

    摘要: A disc of piezoelectric ceramic with a plurality of parallel slots cut into a top surface. Another plurality of slots is cut into the bottom surface of the disc with the parallel slots on the top being perpendicular to the parallel slots on the bottom. For one application a shallow keyway slot is cut into the top and/or bottom surface, traversing the already cut slots, to serve as a receptacle for an electrode ribbon.

    摘要翻译: 一种具有切割成顶表面的多个平行狭缝的压电陶瓷盘。 另外多个槽被切入盘的底表面,顶部上的平行槽垂直于底部上的平行槽。 对于一个应用,浅键槽插入顶部和/或底部表面,穿过已经切割的槽,以用作电极带的容器。

    Core drill apparatus
    2.
    发明授权
    Core drill apparatus 失效
    钻芯钻机

    公开(公告)号:US4625707A

    公开(公告)日:1986-12-02

    申请号:US790697

    申请日:1985-10-23

    摘要: Drilling apparatus for trepanning a difficult to work material. A drill member includes a very thin wall cylindrical cutting head integral with a shank portion, with the assembly being machined from the same piece of stock to insure concentricity. A fluid supply collar includes lower and upper Teflon washer inserts which surround the shank portions and which are held in place respectively by a shoulder of the cutting head and a chuck or other holder of a machine which rotates the drill member. Fluid supplied to the collar is directed through radial and axial passageways in the drill member to the lower margin thereof, and which lower margin includes a continuous abrading surface on the inside, outside and edge thereof. The length of shank extending from the holder is extremely short due to the dimension of the collar thereby resulting in high stiffness to insure for concentricity during drilling operations. A power down feed arrangement is provided so that the drill member is advanced into the workpiece at a predetermined constant rate.

    摘要翻译: 钻孔设备,用于切割难以处理的材料。 钻头构件包括与柄部一体的非常薄壁的圆柱形切割头,其中组件由相同的坯料加工以确保同心度。 流体供应套管包括下部和上部特氟隆垫圈插入件,其围绕柄部分并且分别由切割头的肩部和旋转钻子构件的机器的卡盘或其它保持器保持在适当位置。 供应到轴环的流体被引导穿过钻头构件的径向和轴向通道到其下边缘,并且该下边缘在内侧,外侧和边缘处包括连续的研磨表面。 从支架延伸的杆的长度由于轴环的尺寸而非常短,从而导致高刚度以确保在钻井操作期间的同心度。 提供断电进给装置,使得钻具以预定的恒定速率进入工件。

    High powered piezoelectric cylindrical transducer with threads cut into
the wall
    3.
    发明授权
    High powered piezoelectric cylindrical transducer with threads cut into the wall 失效
    大功率压电圆柱换能器,螺纹切入墙壁

    公开(公告)号:US4135109A

    公开(公告)日:1979-01-16

    申请号:US831720

    申请日:1977-09-09

    IPC分类号: B06B1/06 H04R17/00 H01L41/04

    CPC分类号: B06B1/0655 H04R17/00

    摘要: A cylindrical transducer for providing an omnidirectional beam pattern in one plane and a line radiation pattern in planes normal to the omnidirectional pattern. The cylindrical transducer active element is a radially poled piezoceramic having a surface into which a square thread is spirally cut so that only a pair of electrical leads are needed to excite the whole assembly. In one embodiment the thread is cut entirely through the thickness of the cylinder and in another embodiment it is cut partially through.

    摘要翻译: 用于在一个平面中提供全向光束图案的圆柱形换能器和垂直于全向图案的平面中的线辐射图案。 圆柱形换能器有源元件是径向极化的压电陶瓷,具有一个表面,方螺纹被螺旋地切割到该表面中,从而仅需要一对电引线来激发整个组件。 在一个实施例中,螺纹完全切割通过圆柱体的厚度,并且在另一个实施例中,其被部分地切过。

    Electrode configuration for tubular piezoelectric high-strain driver
    4.
    发明授权
    Electrode configuration for tubular piezoelectric high-strain driver 失效
    用于管状压电高应变驱动器的电极配置

    公开(公告)号:US3564304A

    公开(公告)日:1971-02-16

    申请号:US3564304D

    申请日:1969-09-22

    IPC分类号: B06B1/06 H01V7/00

    CPC分类号: B06B1/0655

    摘要: A cylindrical piezoelectric high-strain ultrasonic driver made up of a plurality of ceramic rings is imbedded in the interior of a steel roller which is used in a rolling mill. Long service life is obtained from the ultrasonic piezoelectric transducer because of a close-fitting, thin-walled, brass tube epoxied into position inside the ceramic rings that make up the ultrasonic transducer. A spider facilitates connection between the brass tube and the power source.