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1. 发明授权

US4715214A Leak tester 失效
标题翻译：泄漏测试仪
公开(公告)号：US4715214A
公开(公告)日：1987-12-29
申请号：US914925
申请日：1986-10-03
申请人： Richard S. Tveter , Wayne A. Miller
发明人： Richard S. Tveter , Wayne A. Miller
IPC分类号： G01M3/32 , G01M3/26
CPC分类号： G01M3/3236
摘要： A method and apparatus for quickly determining leakage in pressurized fluid receptors. Pressure determinations are made substantially immediately following the completion of the filling of the item to be tested with the pressurized fluid without the need for a stabilization period. The complete decay curve is calculated from the pressure determinations. A time constant is determined from the curves defined when no leakage is present and is utilized in determining the leakage rate whenever the two curves defined by the pressure points provide different end pressure values. The determinations may be made by conventional microprocessor-based instrumentation to provide a substantial increase in the rate of conducting fluid leakage tests.
摘要翻译：一种用于快速确定加压流体受体中泄漏的方法和装置。在用加压流体填充要测试的物品完成之后，基本上立即进行压力测定，而不需要稳定期。从压力测定中计算完整的衰减曲线。当不存在泄漏时确定的曲线确定时间常数，并且每当由压力点限定的两条曲线提供不同的最终压力值时，用于确定泄漏率。可以通过常规的基于微处理器的仪器进行确定，以提供导电流体泄漏测试的速率的显着增加。

2. 发明授权

US4616512A Torquemeter 失效
公开(公告)号：US4616512A
公开(公告)日：1986-10-14
申请号：US674165
申请日：1984-11-23
申请人： Sydney Himmelstein , Richard S. Tveter , James P. Beck
发明人： Sydney Himmelstein , Richard S. Tveter , James P. Beck
IPC分类号： G01L3/10
CPC分类号： G01L3/102 , G01L3/105 , Y10S73/02
摘要： A nonintrusive, or noncontact, shaft torquemeter for use in measuring torque transmission through a rotatable shaft. The torquemeter includes an annular torque-sensing coil structure having an annular excitation coil and a pickup coil magnetically coupled to the excitation coil through an improved magnetostrictive coupling structure carried by the shaft. In the illustrated embodiment, the magnetostrictive coupling portion is provided on a tube coaxially fixed at its ends to the shaft. The invention comprehends the provision of structure for preventing a continuous annular conductive path through the coupling portion or tube. Other structure for improving torque measuring accuracy may be provided, including the use of an outer magnetic stator core, and the provision of annular corrugations in the tube for preventing transmission of nontorque forces, such as bending forces, to the coupling portion. In one embodiment, the coupling portion is defined by a portion of the mounting tube, and in another embodiment, the coupling portion is defined by a layer of magnetostrictive material on the tube.
摘要翻译：用于测量通过可旋转轴的扭矩传递的非侵入式或非接触式轴扭矩计。扭矩计包括环形扭矩感测线圈结构，其具有环形激励线圈和通过由轴承载的改进的磁致伸缩耦合结构与励磁线圈磁耦合的拾取线圈。在所示实施例中，磁致伸缩耦合部分设置在同轴固定在其端部上的管上。本发明包括提供用于防止通过联接部分或管的连续环形导电路径的结构。可以提供用于提高扭矩测量精度的其它结构，包括使用外部磁性定子芯，以及在管中提供环形波纹，以防止诸如弯曲力的非扭矩力传递到联接部分。在一个实施例中，联接部分由安装管的一部分限定，并且在另一个实施例中，联接部分由管上的一层磁致伸缩材料限定。

3. 再颁专利

USRE28899E Torque control apparatus 失效
标题翻译：扭矩控制装置
公开(公告)号：USRE28899E
公开(公告)日：1976-07-13
申请号：US564272
申请日：1975-04-02
申请人： Sydney Himmelstein , Richard S. Tveter
发明人： Sydney Himmelstein , Richard S. Tveter
IPC分类号： B25B23/145
CPC分类号： B25B23/1456
摘要： A torque-applying apparatus having one or more torque motors each arranged for forcibly threading a first threaded member into tightened association with a corresponding second threaded member. A control is provided for controlling the operation of each torque motor to firstly seat the first threaded member relative to the second threaded member by a rapid threading operation at a low torque. When the seated condition of all of the threaded members is sensed, the control automatically operates each torque motor to slowly apply gradually increasing higher torque to provide a preselected maximum-torque, tightened condition of the threaded members.

4. 发明授权

US4651573A Shaft torquemeter 失效
标题翻译：轴扭矩计
公开(公告)号：US4651573A
公开(公告)日：1987-03-24
申请号：US775380
申请日：1985-09-12
申请人： Sydney Himmelstein , Richard S. Tveter
发明人： Sydney Himmelstein , Richard S. Tveter
IPC分类号： G01L3/10
CPC分类号： G01L3/102 , G01L3/105
摘要： A nonintrusive torquemeter for measuring torque in a shaft having variable reluctance as a result of torque stresses developed in the shaft. The torquemeter includes an annular first coil, a second coil wound about the first coil coaxially of the annular axis of the first coil to be in space quadrature therewith, structure for mounting the coil assembly coaxially about the shaft to include the shaft in the magnetic flux coupling path between the coils, and structure for providing a signal corresponding to the voltage developed in the pickup winding as a result of changes in the magnetic reluctance of the shaft resulting from torque developed therein. One of the coils is electrically excited to define an excitation winding, and the other of the coils serves as a pickup winding, with the coils being effectively uncoupled in the absence of torque in the shaft and being variably coupled as an incident of torque being developed in the shaft causing a corresponding change in the reluctance thereof. A shield is provided for substantially eliminating inherent coupling between the coils under zero torque conditions, and in the illustrated embodiment, the shield is defined by an annular magnetic core structure extending about the inner coil. A shielding core structure may be provided extending about the assembled coils shielding them from external magnetic fields and providing mechanical protection to the torquemeter. In one illustrated embodiment, a shield is provided for shielding the secondary portion of the outer coil from torque-induced voltages in the inner coil. The outer coil may be differentially wound with a first turn portion wound in a first helical direction and a second turn portion wound in an opposite helical direction.
摘要翻译：用于在轴中测量由于在轴中产生的扭矩应力而具有可变磁阻的轴中的扭矩的非侵入式扭矩计。扭矩计包括环形第一线圈，围绕第一线圈缠绕在与第一线圈的环形轴线同轴的第二线圈中以与其空间正交的结构，用于将线圈组件同轴地安装在轴上以包括在磁通中的轴线圈之间的耦合路径，以及用于提供对应于在拾取绕组中产生的电压的信号的结构，这是由于其中产生的转矩而产生的轴的磁阻的变化的结果。其中一个线圈被电激励以限定励磁绕组，而另一个线圈用作拾波绕组，其中线圈在轴中没有扭矩的情况下有效地分离，并且随着正在开发的转矩的入射而可变地耦合在轴中引起相应的磁阻变化。提供了一种屏蔽，用于在零转矩条件下基本消除线圈之间的固有耦合，并且在所示实施例中，屏蔽由围绕内部线圈延伸的环形磁芯结构限定。可以提供围绕组装的线圈延伸的屏蔽芯结构，从而将它们从外部磁场屏蔽，并向扭矩计提供机械保护。在一个示出的实施例中，提供了用于屏蔽外部线圈的次级部分与内部线圈中的扭矩感应电压的屏蔽。外部线圈可以以沿第一螺旋方向缠绕的第一匝部分和以相反的螺旋方向缠绕的第二匝部分进行差分缠绕。

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