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1. 发明授权

US4772838A Tri-state switching controller for reciprocating linear motors 失效
标题翻译：往复式线性马达的三态切换控制器
公开(公告)号：US4772838A
公开(公告)日：1988-09-20
申请号：US075711
申请日：1987-07-17
申请人： Robert L. Maresca
发明人： Robert L. Maresca
IPC分类号： B60L15/00 , G05B11/00
CPC分类号： B60L15/005 , Y02T10/645 , Y02T10/646 , Y02T10/648
摘要： A nonlinear control system adapted to drive and control the speed, stroke, phase and center position of a reciprocating linear motor by means of phase locked loop techniques and the electromechanical filtering properties of linear motors. The control system comprises a tri-state switching amplifier in conjunction with 3 distinct feedback control loops to accurately determine the amplitude, center position and phase of the motor. The first feedback control loop includes a low pass averaging circuit and compares the motor position with a reference signal to achieve the desired motor position. The second feedback control loop includes a peak detector and determines the stroke of the reciprocating motor. The third feedback control loop operates as a phase locked loop to control the phase of the motor. The control system provides high efficiency, high reliability and low cost.
摘要翻译：一种非线性控制系统，适用于通过锁相环技术驱动和控制往复式线性电机的速度，行程，相位和中心位置以及线性电机的机电过滤特性。控制系统包括一个三态开关放大器，连同3个不同的反馈控制回路，以准确地确定电动机的振幅，中心位置和相位。第一反馈控制回路包括低通平均电路，并将电机位置与参考信号进行比较，以实现所需的电机位置。第二反馈控制回路包括峰值检测器并确定往复式马达的行程。第三反馈控制回路作为锁相环来控制电机的相位。控制系统提供高效率，高可靠性和低成本。

2. 发明授权

US06597145B1 Motion controlling 失效
标题翻译：运动控制
公开(公告)号：US06597145B1
公开(公告)日：2003-07-22
申请号：US08677380
申请日：1996-07-05
申请人： Robert L. Maresca , Thomas L. Aho
发明人： Robert L. Maresca , Thomas L. Aho
IPC分类号： G05B106
CPC分类号： G05B19/356 , G05B2219/42064
摘要： Motion controlling includes a combining network having an acceleration input for receiving an acceleration signal representative of acceleration of a movable element and a position input for receiving a position signal representative of position of the movable element and an output for providing an inferred position signal representative of an inferred position of the movable element. The network includes a first signal processor for processing the acceleration signal to provide modified acceleration signal, a second signal processor for processing the position signal to provide a modified position signal and a combiner for combining the modified acceleration signal with the modified position signal to provide the inferred position signal.
摘要翻译：运动控制包括具有用于接收表示可移动元件的加速度的加速度信号的加速度输入和用于接收表示可移动元件的位置的位置信号的位置输入的组合网络，以及用于提供表示可移动元件的推定位置信号的输出可移动元件的推定位置。网络包括用于处理加速度信号以提供改进的加速度信号的第一信号处理器，用于处理位置信号以提供修改的位置信号的第二信号处理器和用于将修改的加速度信号与修改的位置信号组合的组合器，以提供推测位置信号。

3. 发明授权

US5701039A Electromechanical transducing 失效
标题翻译：机电转换
公开(公告)号：US5701039A
公开(公告)日：1997-12-23
申请号：US504434
申请日：1995-07-20
申请人： James A. Parison , Thomas A. Froeschle , Robert L. Maresca
发明人： James A. Parison , Thomas A. Froeschle , Robert L. Maresca
IPC分类号： B60G17/015 , B60G17/02 , F16F7/00 , H02K33/00 , H02K41/03 , H02K41/00
CPC分类号： H02K41/03
摘要： An electromagnetic transducer includes a first member and a second member which are relatively slidable along a path having spaced endpoints and which are electromagnetically coupled. The second member has at least one winding which produces a magnetic field which penetrates the second member. The second member has a plurality of contiguous permanent magnets of alternate polarity along the path which establish a periodic magnetic field which reacts with the magnet field created by the first member so as to produce force along the path. The plurality of contiguous permanent magnets are disposed along the path such that transition lines dividing adjacent ones of the magnets are formed at a non-perpendicular angle to the path to allow gradual transition between flux directions.
摘要翻译：电磁换能器包括第一构件和第二构件，该第一构件和第二构件沿着具有间隔端点并且被电磁耦合的路径相对滑动。第二构件具有至少一个产生穿过第二构件的磁场的绕组。第二构件具有多个连续的永久磁铁，沿着该路径具有交替的极性，该永磁体建立与由第一构件产生的磁场反应的周期性磁场，以沿着路径产生力。多个连续的永磁体沿着路径设置，使得分开相邻磁体的过渡线形成与路径成非垂直的角度，以允许通量方向之间的逐渐过渡。

4. 发明授权

US4981309A Electromechanical transducing along a path 失效
标题翻译：沿路径的机电式传导
公开(公告)号：US4981309A
公开(公告)日：1991-01-01
申请号：US401947
申请日：1989-08-31
申请人： Thomas A. Froeschle , Robert L. Maresca , James A. Parison
发明人： Thomas A. Froeschle , Robert L. Maresca , James A. Parison
IPC分类号： H02K33/02 , B60G13/14 , B60G13/18 , B60G17/015 , B60G17/019 , H02K35/00 , H02K35/02 , H02K41/02
CPC分类号： B60G17/01933 , B60G13/14 , B60G13/18 , B60G17/0157 , H02K35/02 , H02K41/031 , B60G2202/25 , B60G2202/422 , B60G2300/60 , B60G2400/252 , B60G2500/10 , B60G2500/20 , B60G2500/30 , B60G2600/26 , B60G2600/76
摘要： In a vehicle having a chassis and at least one wheel assembly, where the wheel assembly includes a wheel support member, a damping mass, a damping spring for connecting the damping mass to the wheel support member, and a mechanical resistive member in parallel with the damping spring, a suspension connecting the wheel assembly to the chassis, the suspension supporting the weight of the vehicle and isolating the wheel motion from the chassis motion, and at least one actuator for providing force between the wheel assembly and the chassis, the improvement provides a linear electric motor connected between the wheel assembly and the chassis, where the linear electric motor provides force between the wheel assembly and the chassis.

5. 发明授权

US4652820A Combined position sensor and magnetic motor or bearing 失效
标题翻译：组合位置传感器和磁力马达或轴承
公开(公告)号：US4652820A
公开(公告)日：1987-03-24
申请号：US478171
申请日：1983-03-23
申请人： Robert L. Maresca
发明人： Robert L. Maresca
IPC分类号： G01D5/20 , F16C32/04 , F16C39/06 , G01B7/00 , G01B7/02 , G01N29/30 , G05D3/00 , G05D3/12 , G12B1/00 , H01F7/08 , H02K29/12 , G01B7/14 , G01N27/72 , F16C35/00 , G01R33/12
CPC分类号： F16C32/0448 , G01B7/02 , G01N29/30 , H01F7/08 , H02K29/12
摘要： A combined magnetic sensor and actuator device for applying a magnetic force to a magnetizable body and for sensing the distance between the device and the magnetizable body. The device includes a magnetizable pole piece separated from the magnetizable body by gaps. The pole piece, gaps, and magnetizable body form a magnetic circuit with the gaps preferably being the major reluctance of the circuit. Separate means are provided for generating a relatively large time-varying magnetic actuating flux in the magnetic circuit and for generating a relatively small time-varying magnetic sensing flux in the magnetic circuit. Each magnetic flux follows a flux path, such that the two flux paths have at least a portion in common. Detection means measure the relatively small magnetic flux in the magnetic circuit, and thereby measure the distance between the device and the magnetizable body.
摘要翻译：一种组合磁传感器和致动器装置，用于将磁力施加到可磁化体并用于感测装置与可磁化体之间的距离。该装置包括通过间隙与可磁化体分离的可磁化极靴。极片，间隙和可磁化体形成磁路，间隙优选地是电路的主要磁阻。提供了分离装置，用于在磁路中产生相当大的时变磁致动磁通并且在磁路中产生相对小的时变磁感应磁通。每个磁通量遵循磁通路径，使得两个磁通路径具有至少一部分共同的部分。检测装置测量磁路中较小的磁通量，从而测量装置与可磁化体之间的距离。

6. 发明授权

US4698576A Tri-state switching controller for reciprocating linear motors 失效
公开(公告)号：US4698576A
公开(公告)日：1987-10-06
申请号：US876544
申请日：1986-06-20
申请人： Robert L. Maresca
发明人： Robert L. Maresca
IPC分类号： H02P25/06 , B60L15/00 , G05B11/00
CPC分类号： B60L15/005 , Y02T10/645 , Y02T10/646 , Y02T10/648
摘要： A nonlinear control system adapted to drive and control the speed, stroke, phase and center position of a reciprocating linear motor by means of phase locked loop techniques and the electromechanical filtering properties of linear motors. The control system comprises a tri-state switching amplifier in conjunction with 3 distinct feedback control loops to accurately determine the amplitude, center position and phase of the motor. The first feedback control loop includes a low pass averaging circuit and compares the motor position with a reference signal to achieve the desired motor position. The second feedback control loop includes a peak detector and determines the stroke of the reciprocating motor. The third feedback control loop operates as a phase locked loop to control the phase of the motor. The control system provides high efficiency, high reliability and low cost.

7. 发明授权

US5574445A Digital absolute position encoders 失效
标题翻译：数字绝对位置编码器
公开(公告)号：US5574445A
公开(公告)日：1996-11-12
申请号：US351838
申请日：1994-12-08
申请人： Robert L. Maresca , James A. Parison, Jr. , Thomas A. Froeschle , John J. Breen , Christopher H. Perry
发明人： Robert L. Maresca , James A. Parison, Jr. , Thomas A. Froeschle , John J. Breen , Christopher H. Perry
IPC分类号： G01B7/00 , G01D5/245 , G01D5/249 , H03M1/24 , H03M1/28 , H03M1/22
CPC分类号： H03M1/285 , G01B7/003 , G01D5/2455 , G01D5/2492 , G01D5/2497
摘要： A digital absolute position encoder is provided for determining absolute position of a first member with respect to a second member. The absolute position is determined within a resolution cell of L/2.sup.n, where n is an integer and L is a predetermined span. One of the members has a plurality of, m, tracks of binary indicia distributed over the predetermined span, L, where m is an integer less than n. The other member has a plurality of indicia detectors disposed on the second member for detecting the binary indicia. With such an arrangement, an encoder is provided having "a unit-distance code", yet uses less tracks than that used with a conventional Gray code encoder. Further, the encoder has a reduced number of transitions than that required on the track used with a conventional Gray code encoder. Both of these features simplify the design and fabrication for a given encoder resolution.
摘要翻译：提供数字绝对位置编码器用于确定第一构件相对于第二构件的绝对位置。在L / 2n的分辨率单元内确定绝对位置，其中n是整数，L是预定跨度。其中一个构件具有分布在预定跨度L上的多个m行的二进制标记，其中m是小于n的整数。另一个构件具有设置在第二构件上用于检测二进制标记的多个标记检测器。通过这样的布置，提供具有“单位距离代码”的编码器，但是使用比常规格雷码编码器使用的轨道少的轨道。此外，编码器的转换次数比常规格雷码编码器所使用的轨道所需的转换次数少。这两个功能简化了给定编码器分辨率的设计和制作。

8. 发明授权

US4587971A Ultrasonic scanning apparatus 失效
标题翻译：超声波扫描仪
公开(公告)号：US4587971A
公开(公告)日：1986-05-13
申请号：US676461
申请日：1984-11-29
申请人： Fred R. Stolfi , Robert L. Maresca , Peter P. Adamovic
发明人： Fred R. Stolfi , Robert L. Maresca , Peter P. Adamovic
IPC分类号： G01N29/24 , G10K11/35 , A61B10/00
CPC分类号： G10K11/355
摘要： An ultrasonic scanning apparatus includes a rotor, first and second electromagnetic stators, and an ultrasonic transducer mounted on the rotor. Each electromagnetic stator has two curved pole faces arranged opposite pole faces on the rotor. The electromagnetic stators are arranged on opposite sides of the axis of rotation of the rotor. The stator pole faces are tapered such that on rotation of the rotor in one direction, the gaps between the rotor and a first stator decrease while the gaps between the rotor and the other stator increase. On rotation of the rotor in the opposite direction, the gaps between the rotor and the first stator increase and the gaps between the rotor and the second stator decrease. Means are provided for alternately energizing the first and second electromagnetic stators to cause the rotor to oscillate about the axis of rotation.
摘要翻译：超声波扫描装置包括转子，第一和第二电磁定子以及安装在转子上的超声换能器。每个电磁定子具有在转子上相对设置的极性面的两个弯曲极面。电磁定子布置在转子的旋转轴的相对侧上。定子极面是锥形的，使得当转子在一个方向旋转时，转子和第一定子之间的间隙减小，同时转子和另一个定子之间的间隙增加。在转子沿相反方向旋转时，转子和第一定子之间的间隙增大，并且转子和第二定子之间的间隙减小。提供了用于交替地激励第一和第二电磁定子以使转子围绕旋转轴线振荡的装置。

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