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1. 发明授权

US08022691B2 Microminiature gauging displacement sensor 有权
标题翻译：微型测量位移传感器
公开(公告)号：US08022691B2
公开(公告)日：2011-09-20
申请号：US10677578
申请日：2003-10-02
申请人： David L. Churchill , Steven Ward Mundell
发明人： David L. Churchill , Steven Ward Mundell
IPC分类号： G01B7/14 , H01F5/00
CPC分类号： G01D5/2013
摘要： A device for providing displacement information includes a housing holding a displacement sensor. The displacement sensor includes a coil and a captive core. An electrical measurement of the coil provides information about displacement of the core. The coil has an axis extending in a first direction, wherein the housing has a minimum outside dimension that is less than 3.00 mm when measured perpendicular to that first direction. The housing has an inner surface having a housing inside dimension. The housing is for holding a displacement sensor and a guidance mechanism. The displacement sensor includes a coil and a captive core having a core outside dimension. The guidance mechanism includes a first part and a second part for guiding the core. The first part includes a bearing connected to the housing. The bearing has an axial hole having a hole dimension about equal to the core outside dimension. The core slidably extends through this axial hole. The second part has a second part outside dimension about equal to the housing inside dimension. The guidance mechanism is for resisting lateral movement and lateral rotation of the core while allowing axial movement of the core into and out of the coil.
摘要翻译：用于提供位移信息的装置包括容纳位移传感器的壳体。位移传感器包括线圈和捕获芯。线圈的电测量提供关于芯的位移的信息。线圈具有沿第一方向延伸的轴线，其中当垂直于该第一方向测量时，壳体具有小于3.00mm的最小外部尺寸。壳体具有具有壳体内部尺寸的内表面。壳体用于保持位移传感器和引导机构。位移传感器包括具有芯外部尺寸的线圈和固定芯。引导机构包括用于引导芯的第一部分和第二部分。第一部分包括连接到壳体的轴承。该轴承具有孔尺寸大约等于芯外尺寸的轴孔。芯可滑动地延伸穿过该轴向孔。第二部分具有大约等于外壳尺寸的外部尺寸的第二部分。引导机构用于抵抗芯的横向运动和横向旋转，同时允许芯进出线圈的轴向移动。

2. 发明授权

US06499368B2 Miniaturized pressure equalized displacement sensor assembly 失效
标题翻译：小型压力均衡位移传感器组件
公开(公告)号：US06499368B2
公开(公告)日：2002-12-31
申请号：US09067710
申请日：1998-04-28
申请人： Steven Willard Arms , Christopher Pruyn Townsend , Steven Ward Mundell
发明人： Steven Willard Arms , Christopher Pruyn Townsend , Steven Ward Mundell
IPC分类号： G01D2100
CPC分类号： G01D11/245
摘要： The novel sensor assembly is comprised of a threaded housing with pressure relief tracks through the threads that terminate at a hole through the housing and a displacement sensor. In the preferred embodiment, we have included an integral connector, a super-elastic core carrier and a Differential Variable Reluctance Transducer. Other sensor types could be used to construct a pressure equalized displacement sensor as described herein, these may include: capacitive, resistive, Hall effect, eddy current, and differential variable transformer. The sensor is attached to a keyed connector and the entire assembly is potted into the housing. A temperature probe can also be potted with this assembly to allow for multiple tasks t1o be performed by this one housing. The housing is threaded on one end to allow for easy mounting. A hole is drilled through the housing just in back of the sensor and two tracks run perpendicular to and slightly deeper than the threads. The tracks connect to the through hole. This configuration allows fluid to freely flow from the front to the back of the sensor and putting it in equilibrium without escaping from the pressurized environment. This embodiment is hermetically sealed, extremely robust and easily mounted.
摘要翻译：新颖的传感器组件包括螺纹壳体，带有通过螺纹的压力释放轨道，其终止于穿过壳体的孔和位移传感器。在优选实施例中，我们包括一体式连接器，超弹性芯架和差动可变磁阻传感器。可以使用其他传感器类型来构造如本文所述的均压位移传感器，这些可以包括：电容，电阻，霍尔效应，涡流和差分可变变压器。传感器连接到带键的连接器，并且整个组件被封装进入住房。温度探头也可以使用该组件进行封装，以允许由该一个外壳执行多个任务。外壳在一端螺纹连接，便于安装。在传感器后面穿过壳体钻一个孔，两个轨道垂直于螺纹并稍微深一些。轨道连接到通孔。该配置允许流体从传感器的前部到后部自由流动并将其平衡，而不会从加压环境中逸出。该实施例是密封的，非常坚固的并且易于安装。

3. 发明授权

US06901654B2 Method of fabricating a coil and clamp for variable reluctance transducer 有权
标题翻译：制造用于可变磁阻传感器的线圈和夹具的方法
公开(公告)号：US06901654B2
公开(公告)日：2005-06-07
申请号：US09757909
申请日：2001-01-10
申请人： Steven W. Arms , Michael J Hamel , Steven Ward Mundell , Christophor Pruyn Townsend
发明人： Steven W. Arms , Michael J Hamel , Steven Ward Mundell , Christophor Pruyn Townsend
IPC分类号： G01B7/24 , H01F21/06 , H01F41/04 , H01F5/02 , H01F3/06
CPC分类号： G01B7/24 , H01F21/06 , H01F41/04 , Y10T29/4902 , Y10T29/49073 , Y10T29/49128 , Y10T29/4913 , Y10T29/49144 , Y10T29/49789 , Y10T29/49798
摘要： Improved coils and clamps for variable reluctance sensors are disclosed. A method of fabricating a discrete coil involves providing a conductor wound in a coil on a tube. The coil has a coil outer surface that has insulation. A window is opened in the insulation on the coil outer surface to expose conductor of the coil for a contact. A movable core is provided within the tube for adjusting inductance of the coil. In one embodiment, the coil and tube are diced into small coils after the windows for each coil are opened. Another aspect the invention is a clamp comprising an elastic material, a shape memory alloy, and an apparatus for activating the shape memory alloy. The clamp holds the moveable core in its peak position. When the alloy is activated it changes shape and provides a force on the elastic material to change clamping state for resetting the transducer. The coils and clamps can be used for a variety of purposes in addition to the variable reluctance sensors.
摘要翻译：公开了用于可变磁阻传感器的改进的线圈和夹具。制造分立线圈的方法包括提供缠绕在管中的线圈中的导体。线圈具有绝缘的线圈外表面。在线圈外表面上的绝缘体中打开一个窗口以露出线圈的导体用于接触。在该管内设有一可动芯，用于调节线圈的电感。在一个实施例中，在每个线圈的窗口打开之后，线圈和管被切成小的线圈。本发明的另一方面是包括弹性材料，形状记忆合金和用于激活形状记忆合金的装置的夹具。夹具将可动芯保持在其峰值位置。当合金被激活时，它改变形状并且在弹性材料上提供力以改变用于复位换能器的夹紧状态。除了可变磁阻传感器之外，线圈和夹具可用于各种目的。

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