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公开(公告)号：US20170089952A1
公开(公告)日：2017-03-30
申请号：US14865668
申请日：2015-09-25
申请人： Jesse Davis
发明人： Jesse Davis
CPC分类号： G01R1/14 , G01R1/04 , G01R31/02 , G01R31/2839 , H01H71/1045
摘要： A load providing test and diagnostic assist device for provision of power to equipment undergoing diagnostic testing and repair includes a breaker that is sized appropriately to the amperage of the equipment under repair. The device includes a power cable and a power cord that are gauged appropriately to the current source supplied to the equipment under repair. The power cable has a first terminus and a second terminus. The power cord has a first end and a second end. The first end and the first terminus are electrically coupled to the breaker. A connector is electrically coupled to the second terminus of the power cable. The connector is couplable to an alternating current source. A coupler is electrically coupled to the second end of the power cord.
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公开(公告)号：US4353017A
公开(公告)日：1982-10-05
申请号：US746467
申请日：1976-12-01
申请人： Edward F. Burke, Jr.
发明人： Edward F. Burke, Jr.
CPC分类号： G01R1/14 , G01P3/46 , G01R1/30 , G01R17/06 , Y10S388/902
摘要： A velocity-compensation circuit for a limited-displacement motor comprises a bridge circuit incorporating the control winding of the motor in a first arm. An adjacent bridge arm includes both an inductance and a resistance whose ratio is the same as that of the first bridge arm. The bridge is balanced to eliminate from its output the effect of current through the control winding. The bridge output in normal operation is therefore solely a function of motor velocity and this signal is fed back to provide velocity compensation for the motor.
摘要翻译： 用于有限位移电动机的速度补偿电路包括将电动机的控制绕组并入第一臂的桥接电路。 相邻的桥臂包括电感和电阻，其比率与第一桥臂的电阻相同。 桥梁平衡，消除其输出电流通过控制绕组的影响。 因此，正常运行中的桥输出仅仅是电机速度的函数，反馈信号为电机提供速度补偿。
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公开(公告)号：US4348683A
公开(公告)日：1982-09-07
申请号：US293392
申请日：1981-08-17
申请人： Everett O. Olsen
发明人： Everett O. Olsen
摘要： Chart recording apparatus for use with industrial instrumentation systems and the like, and comprising memory means to maintain a signal level for long time periods without drift. An input signal level is translated into the positioning of a pen, through the use of an actuator motor controlled by the input signal and a position feedback signal. A friction device is coupled to the pen to hold it in any given position, thereby to serve as a memory for the input signal level. The friction device comprises a thin vane-like element which is secured to the movable member and disposed in the air-gap of a permanent magnet. The air-gap also includes a mass of tiny magnetizable particles which, under the influence of the magnetic field, engage the surfaces of the vane-like element to develop a frictional restraining force. This frictional restraint has the characteristic of being relatively low upon initial movement away from a start point, and thereafter increasing progressively to a plateau level, thereby providing superior dynamic performance particularly in a servo positioning system. A plurality of such controllers can be operated in a time-shared mode, with the memory device of each non-activated recorder holding its pen fixed in position to prevent drift.
摘要翻译： 用于与工业仪表系统等一起使用的图表记录装置，并且包括用于在不漂移的情况下长时间维持信号电平的存储装置。 输入信号电平通过使用由输入信号控制的致动器马达和位置反馈信号转换成笔的定位。 摩擦装置耦合到笔以将其保持在任何给定位置，从而用作输入信号电平的存储器。 摩擦装置包括薄的叶片状元件，其固定到可动构件并且设置在永磁体的气隙中。 气隙还包括大量微小的可磁化颗粒，其在磁场的影响下与叶片状元件的表面接合以产生摩擦抑制力。 这种摩擦约束具有在起始点的初始移动之后相对较低的特性，然后逐渐增加到平台级，从而提供优异的动态性能，特别是在伺服定位系统中。 多个这样的控制器可以在时间共享模式下操作，每个非激活记录器的存储器将其笔固定在适当位置以防止漂移。
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4.发明授权
公开(公告)号：US4051436A
公开(公告)日：1977-09-27
申请号：US676710
申请日：1976-04-14
申请人： Casper J. Weir, Jr.
发明人： Casper J. Weir, Jr.
CPC分类号： G01N17/02 , G01R1/14 , G01R19/0084 , G01R31/021
摘要： An improved testing device and method to measure the degree of polarization potential on the interface of a metal structure and its environment where said structure is protected against corrosion through a cathodic protection system.The testing device includes adjustable stop means associated with a conventional electrometer to reduce the excursion of the needle of said meter and thereby achieve a more accurate reading of the polarization potential of the metal structure.
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公开(公告)号：US1526306A
公开(公告)日：1925-02-10
申请号：US70772824
申请日：1924-04-19
申请人： GEN ELECTRIC
发明人： SPRENGER GEORGE W
IPC分类号： G01R1/14
CPC分类号： G01R1/14
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公开(公告)号：US20180313971A1
公开(公告)日：2018-11-01
申请号：US16025005
申请日：2018-07-02
申请人： CGG SERVICES SAS
发明人： Philip MILES
摘要： An electromagnetic (EM) receiver system for measuring EM signals. The EM receiver system includes a platform; a coil for measuring EM signals; and first to third suspension mechanisms located between the platform and the coil so that the coil oscillates relative to the platform, and the first to third suspension mechanisms attenuate motion induced noise introduced by towing the receiver system above ground.
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公开(公告)号：US4310841A
公开(公告)日：1982-01-12
申请号：US923009
申请日：1978-07-10
申请人： Everett O. Olsen
发明人： Everett O. Olsen
摘要： Signal-processing apparatus for use with industrial instrumentation systems and the like, and comprising a memory to maintain a signal level for long time periods without drift. An input signal level is translated into the positioning of a movable member, through the use of an actuator motor controlled by the input signal and a position feedback signal. A friction device is coupled to the movable member to hold it in any given position, thereby to serve as a memory for the input signal level. The friction device comprises a thin vane-like element which is secured to the movable member and disposed in the air-gap of a permanent magnet. The air-gap also includes a mass of tiny magnetizable particles which, under the influence of the magnetic field, engage the surfaces of the vane-like element to develop a frictional restraining force. This frictional restraint has the characteristic of being relatively low upon initial movement away from a start point, and thereafter increasing progressively to a plateau level, thereby providing superior dynamic performance particularly in a servo positioning system. Various applications are disclosed including process controllers and chart recorder systems.
摘要翻译： 与工业仪表系统等一起使用的信号处理装置，并且包括用于长时间保持信号电平而不漂移的存储器。 输入信号电平通过使用由输入信号控制的致动器电动机和位置反馈信号转换成可移动部件的定位。 摩擦装置联接到可移动构件以将其保持在任何给定位置，从而用作用于输入信号电平的存储器。 摩擦装置包括薄的叶片状元件，其固定到可动构件并且设置在永磁体的气隙中。 气隙还包括大量微小的可磁化颗粒，其在磁场的影响下与叶片状元件的表面接合以产生摩擦抑制力。 这种摩擦约束具有在起始点的初始移动之后相对较低的特性，然后逐渐增加到平台级，从而提供优异的动态性能，特别是在伺服定位系统中。 公开了各种应用，包括过程控制器和图表记录器系统。
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8.发明授权Limited rotation moving iron motor with novel velocity sensing and feedback 失效有限旋转运动铁马达具有新颖的速度感应和反馈
公开(公告)号：US4186332A
公开(公告)日：1980-01-29
申请号：US908400
申请日：1978-05-22
申请人： Jean I. Montagu
发明人： Jean I. Montagu
摘要： A device for providing a voltage indicating the angular velocity of rotation of the armature in a limited rotation, polarized, moving iron galvanometer. The device includes a means for providing a first voltage dependent upon the angular velocity of the armature, the self-inductance of the galvanometer drive coil, and the drive current in the drive coil. A compensation coil is magnetically coupled to the drive coil and magnetically isolated from the effects of the rotating armature to provide a second voltage which is dependent upon mutual inductance between the drive and compensation coils and upon the drive current, but is not dependent upon the effects of the rotating armature due to the magnetic isolation of the compensation coil from the armature. A combining means proportionally combines the first and second voltages to provide a voltage indicating the angular velocity of rotation of the armature. The means for providing the first voltage includes either the drive coil, with the first voltage appearing across the drive coil, or a pickoff coil wound coaxially with and adjacent to the drive coil so that the first voltage appears across the pickoff coil and is proportional to the voltage appearing across the drive coil. The velocity signal thus derived is introduced to the drive circuit to provide effective damping.
摘要翻译： 一种用于提供电压的电压，该电压指示有限旋转，极化的移动铁电流计中的电枢的旋转角速度。 该装置包括用于提供取决于电枢的角速度，电流计驱动线圈的自感和驱动线圈中的驱动电流的第一电压的装置。 补偿线圈磁耦合到驱动线圈并且与旋转电枢的作用磁隔离以提供依赖于驱动和补偿线圈之间的互感以及驱动电流的第二电压，但不依赖于效应 由于补偿线圈从电枢的磁隔离，旋转的电枢。 组合装置按比例组合第一和第二电压以提供指示电枢的旋转角速度的电压。 用于提供第一电压的装置包括驱动线圈，驱动线圈上出现第一电压，或者与驱动线圈同轴并与驱动线圈相邻地缠绕的导线线圈，使得第一电压出现在驱动线圈两端并且与 驱动线圈两端出现电压。 这样得到的速度信号被引入驱动电路以提供有效的阻尼。
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公开(公告)号：US4011510A
公开(公告)日：1977-03-08
申请号：US680134
申请日：1976-04-26
申请人： Everett O. Olsen
发明人： Everett O. Olsen
摘要： Signal-processing apparatus for use with industrial instrumentation systems and the like, and comprising memory means to maintain a signal level for long time periods without drift. An input signal level is translated into the positioning of a movable member, through the use of an actuator motor controlled by the input signal and a position feedback signal. A friction device is coupled to the movable member to hold it in any given position, thereby to serve as a memory for the input signal level. The friction device comprises a thin vane-like element which is secured to the movable member and disposed in the air-gap of a permanent magnet. The air-gap also includes a mass of tiny magnetizable particles which, under the influence of the magnetic field, engage the surfaces of the vane-like element to develop a frictional restraining force. This frictional restraint has the characteristic of being relatively low upon initial movement away from a start point, and thereafter increasing progressively to a plateau level, thereby providing superior dynamic performance particularly in a servo positioning system. Various applications are disclosed including process controllers and chart recorder systems.
摘要翻译： 用于工业仪表系统等的信号处理装置，并且包括用于长时间保持信号电平而没有漂移的存储装置。 输入信号电平通过使用由输入信号控制的致动器电动机和位置反馈信号转换成可移动部件的定位。 摩擦装置联接到可移动构件以将其保持在任何给定位置，从而用作用于输入信号电平的存储器。 摩擦装置包括薄的叶片状元件，其固定到可动构件并且设置在永磁体的气隙中。 气隙还包括大量微小的可磁化颗粒，其在磁场的影响下与叶片状元件的表面接合以产生摩擦抑制力。 这种摩擦约束具有在起始点的初始移动之后相对较低的特性，然后逐渐增加到平台级，从而提供优异的动态性能，特别是在伺服定位系统中。 公开了各种应用，包括过程控制器和图表记录器系统。
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10.发明授权Fluid damped permanent magnet core meter movement with a float supported and filar suspended coil 失效流体阻尼永磁核心仪表运动，浮子支撑和丝状悬挂线圈
公开(公告)号：US3274490A
公开(公告)日：1966-09-20
申请号：US23985162
申请日：1962-11-23
申请人： SWANSON HARRY G
发明人： SWANSON HARRY G
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