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1. 发明授权

US4854156A Pneumatic surface-following control system 失效
标题翻译：气动表面跟踪控制系统
公开(公告)号：US4854156A
公开(公告)日：1989-08-08
申请号：US292789
申请日：1989-01-03
申请人： James D. Hoeffel , Richard E. Elliott , Wally C. Hoppe , James S. Nevitt
发明人： James D. Hoeffel , Richard E. Elliott , Wally C. Hoppe , James S. Nevitt
IPC分类号： G01B7/02 , G01B13/00
CPC分类号： G01B7/023 , G01B13/00 , Y10S33/02
摘要： An apparatus for maintaining the end of a probe carrying a sensor, such as an eddy current probe, a predetermined distance from a workpiece includes a housing in which a piston is permitted to move. Air under pressure, introduced into a first chamber formed within the housing, acts on a first surface of the piston to urge it toward the workpiece. An air bearing is used to permit the almost friction free axial movement of the piston within the housing. Some of the air passes from the first chamber through a restricted opening in the piston into a second chamber and is vented toward the workpiece. The pressure in the second chamber will vary as a function of the distance of the end of the probe to the workpiece surface. The piston is provided with a second, larger, surface area exposed to the variable pressure in the second chamber, and as a result, the piston is urged away from the workpiece. The pressures acting in the two surfaces work together to maintain the piston, and the sensor, a constant distance from the workpiece.
摘要翻译：用于保持携带距离工件预定距离的传感器（例如涡流探针）的探头的端部的装置包括允许活塞允许移动的壳体。被引入形成在壳体内的第一腔室中的空气作用在活塞的第一表面上以将其推向工件。空气轴承用于允许活塞在壳体内几乎无摩擦的轴向运动。一些空气从第一室通过活塞中的限制开口进入第二室，并朝向工件排气。第二腔室中的压力将随着探针端部到工件表面的距离而变化。活塞设置有暴露于第二室中的可变压力的第二较大的表面区域，结果，活塞被迫远离工件。作用在两个表面上的压力一起工作，以保持活塞和传感器与工件的距离恒定。

2. 发明授权

US5111142A Eddy current proble with adjustable position rotating head 失效
标题翻译： EDDY电流问题与可调节位置旋转头
公开(公告)号：US5111142A
公开(公告)日：1992-05-05
申请号：US564272
申请日：1990-08-08
申请人： Daniel P. Mazzone , James D. Hoeffel , James S. Nevitt , Richard E. Elliott
发明人： Daniel P. Mazzone , James D. Hoeffel , James S. Nevitt , Richard E. Elliott
IPC分类号： G01N27/90
CPC分类号： G01N27/902
摘要： A detachable, articulated rotating eddy current inspection tool includes a body member having a connector at one end for mechanically and electrically attaching the body member to a rotating drive member while at the other an eddy current probe is supported for radial movement with respect to the axis of rotation of the body member. A motor located within the body moves a slide on which the probe is mounted while at the same time a counterbalancing slide is moved radially in the opposite direction to maintain said tool in dynamic balance. An encoder housed within said body member senses the location of said eddy current probe with respect to the axis of rotation of said body member. A rotary transformer is used to transfer signals which control the position of the probe and to receive information from the eddy current probe and the encoder. The encoder output signals are modulated by the eddy current probe exciter signal to enable probe positions information to be sent through a rotary transformer.
摘要翻译：可拆卸的铰接旋转涡流检查工具包括主体构件，其在一端具有连接器，用于将主体构件机械地和电气地附接到旋转的驱动构件，而在另一端，涡流探针被支撑用于相对于轴线径向移动的身体构件的旋转。位于主体内部的马达移动其上安装探针的滑块，同时平衡滑块沿相反方向径向移动，以保持所述工具处于动态平衡。容纳在所述主体构件内的编码器感测所述涡流探针相对于所述主体构件的旋转轴线的位置。旋转变压器用于传送控制探头位置并从涡流探头和编码器接收信息的信号。编码器输出信号由涡流探针激励器信号调制，以使探针位置信息通过旋转变压器发送。

3. 发明授权

US4187715A Method and apparatus for dimensional gaging with fluid pressure 失效
标题翻译：用流体压力进行尺寸测量的方法和装置
公开(公告)号：US4187715A
公开(公告)日：1980-02-12
申请号：US922705
申请日：1978-07-07
申请人： James S. Nevitt
发明人： James S. Nevitt
IPC分类号： G01B13/00 , G01B13/10
CPC分类号： G01B13/10 , G01B13/00
摘要： A back pressure fluid gaging circuit for measuring dimensions of a workpiece. The gaging circuit (100) includes gage tooling (190) including at least one fluid jet (192) disposed to be directed at a surface (210) of the workpiece (200), with variations in the distance between the surface (210) and the tooling (190) providing a varying back pressure of the fluid which is measured by a gage (150) located intermediate the length of a conduit (170) connecting a source (110) of fluid under pressure with the tooling (190). First and second adjustable (variable) fluid passage restrictions (130, 140) in the conduit (170, are adjusted to provide an output within a range that can be displayed by the gage (150) for the particular tooling selected. One of the adjustable restrictions (130) is located along the conduit between the source (110) of pressurized fluid and the gage (150) and the other restrictions (140) between the gage (150) and the tooling (190). The use of two adjustable passage restrictions allows the use of a constant (non-varying) fluid pressure source, supplied by a fixed fluid pressure regulator (120).
摘要翻译：用于测量工件尺寸的背压流体测量电路。测量电路（100）包括量规工具（190），其包括设置成指向工件（200）的表面（210）的至少一个流体射流（192），其中表面（210）和工具（190）提供流体的变化的背压，其由位于连接压力的流体源（110）与工具（190）的导管（170）的长度之间的量具（150）测量的量具。导管（170）中的第一和第二可调节（可变）流体通道限制（130,140）被调节以提供在可选择的特定工具可由量规（150）显示的范围内的输出。可调节限制（130）位于加压流体源（110）和量规（150）之间的导管和量具（150）和工具（190）之间的其它限制（140）之间。使用两个可调节通道限制允许使用由固定流体压力调节器（120）提供的恒定（不变）流体压力源。

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