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61.发明授权
公开(公告)号：US5307693A
公开(公告)日：1994-05-03
申请号：US7304
申请日：1993-01-21
Applicant: Joseph E. Griffith , Gabriel L. Miller
Inventor： Joseph E. Griffith , Gabriel L. Miller
CPC classification number: G01Q60/38 , B82Y35/00 , Y10S977/865 , Y10S977/873
Abstract: A force-sensing system suitable, for example, for atomic force microscopy. This system includes a rocking beam, a base, and means for supporting the beam adjacent a surface of the base such that the beam can pivot about at least one axis parallel to the base surface. In contrast to rocking-beam systems of the prior art, the support means comprise at least one pivot element that can be held against the base surface by a magnetic field.
Abstract translation: 适用于例如原子力显微镜的力感测系统。 该系统包括摆动梁，基座和用于支撑邻近基座的表面的梁的装置，使得梁可绕平行于基座表面的至少一个轴线枢转。 与现有技术的摇臂系统相比，支撑装置包括至少一个枢转元件，该枢轴元件可通过磁场抵靠基座表面。
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公开(公告)号：US5257549A
公开(公告)日：1993-11-02
申请号：US729273
申请日：1991-07-12
Applicant: Philip J. Mole
Inventor： Philip J. Mole
CPC classification number: G01G3/1406 , G01L1/083
Abstract: A variable load cell arrangement operative for precisely measuring loads over a range beyond the range of a single conventional single low range load cell. The arrangement includes a low range measuring element positioned in a case and having one end adapted to be connected through the case to a load and the opposing end coupled to a fixed reference. A variable pressure means, such as a controllable bellows, is interposed in the case between the load element and an end of the case whereby a predetermined force may be selectively applied to the load measuring element in a direction opposing the load to relieve the strain on the element and permit it to continue to function in an extended range. Electrical circuits, including Wheatstone bridges, are coupled to the load measuring element and provide an electrical output indicative of the applied load and an electrical output that is used to control the variable pressure means.
Abstract translation: 一种可变称重传感器装置，用于在单个常规单个低范围称重传感器的范围之外的范围内精确测量载荷。 该装置包括定位在壳体中的低范围测量元件，并且其一端适于通过壳体连接到负载，并且相对端耦合到固定基准。 诸如可控的波纹管之类的可变压力装置被插入在负载元件和壳体的端部之间的壳体中，由此可以以与负载相反的方向选择性地将负载测量元件施加预定的力以减轻应变 该元件并允许其在更大范围内继续运行。 包括惠斯通电桥的电路耦合到负载测量元件，并提供指示施加的负载的电输出和用于控制可变压力装置的电输出。
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公开(公告)号：US4972486A
公开(公告)日：1990-11-20
申请号：US352657
申请日：1989-05-12
Applicant: R. Orin Cornett , Robert L. Beadles
Inventor： R. Orin Cornett , Robert L. Beadles
Abstract: For hard of hearing people, speech sounds are recognized electronically and displayed on eyeglasses at syllable speed, consonants are shown as a symbol resembling a hand sign, and vowels by the symbol's location in a quadrant display, or by color.
Abstract translation: 对于难以听到的人来说，语音被电子识别，并以音节速度显示在眼镜上，辅音被显示为类似手牌的符号，并且符号位于象限显示中的元音或颜色。
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公开(公告)号：US4631958A
公开(公告)日：1986-12-30
申请号：US591180
申请日：1984-03-19
Applicant: Roger Van Cauwenberghe , Jiri Motycka
Inventor： Roger Van Cauwenberghe , Jiri Motycka
CPC classification number: G01P5/02
Abstract: The anemometer is for use in measuring two orthogonal velocity components of a fluid, such as air or water. When used to measure wind speed, the wind force acting on a sphere attached to a shaft tends to deflect the shaft from the neutral position. This deflection is measured by optical or electromagnetic sensors which control an electromagnetic actuator which generates a force opposing the wind force thereby returning the shaft to the neutral position. The actuator generates a force proportional to the square of the current applied to the actuator coils. Since the drag force is proportional to the fluid velocity squared (for one dimensional measurement), the wind speed measurement derived from the current applied to the electromagnet will be partly linearized. A microprocessoris used to compute the wind speed components or the wind speed and its direction from the electromagnet signals.
Abstract translation: 风速计用于测量流体（如空气或水）的两个正交速度分量。 当用于测量风速时，作用在附接到轴上的球体上的风力倾向于使轴从中立位置偏转。 该偏转由光学或电磁传感器测量，光学或电磁传感器控制电磁致动器，其产生与风力相反的力，从而将轴返回到中立位置。 致动器产生与施加到致动器线圈的电流的平方成比例的力。 由于拖曳力与流体速度平方成正比（对于一维测量），从施加到电磁体的电流导出的风速测量将部分线性化。 用于计算风速分量或风速及其从电磁信号的方向的微处理器。
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公开(公告)号：US4365680A
公开(公告)日：1982-12-28
申请号：US160969
申请日：1980-06-19
Applicant: Dietrich Gottstein , Christian Nitschke
Inventor： Dietrich Gottstein , Christian Nitschke
Abstract: A force measuring device of the electromagnetic compensation type is disclosed. The force measuring device includes a coil moving in a magnetic field, a display unit and a control circuit which returns the coil to its original position and supplies the display with the value of the forces being measured at substantially the same time. The device is also disclosed including a variable integration constant in the control circuit to provide a quicker response to small disturbances thus making the balance insensitive to vibrations.
Abstract translation: 公开了一种电磁补偿型力测量装置。 力测量装置包括在磁场中移动的线圈，显示单元和控制电路，其将线圈返回到其原始位置，并且在基本上同时向显示器提供被测量的值。 还公开了该装置，其包括控制电路中的可变积分常数，以便对小扰动提供更快的响应，从而使平衡对振动不敏感。
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Patent Agency Ranking
公开(公告)号：US4091886A
公开(公告)日：1978-05-30
申请号：US762679
申请日：1977-01-26
Applicant: Erich Knothe , Christoph Berg , Eberhard Stadler
Inventor： Erich Knothe , Christoph Berg , Eberhard Stadler
Abstract: An electromagnetic, compensating force-measuring or weighing device having at least one working coil movable in an air gap of a magnet system. At least two members for temperature compensation are positioned at different, spaced apart points. The compensating effect of these members on the active part of the system jointly produce a temperature compensating value which is optionally approximately equal to the exact value of the actual temperature curve. The members may be in the form of a plurality of minute particles of nonretentive material having a high negative coefficient of saturation magnetization distributed in the active part. The members may be formed of the afore-mentioned material and be positioned on the active part or be PTC or NTC resistors so positioned.
Abstract translation: 一种电磁补偿力测量或称重装置，其具有可在磁体系统的气隙中移动的至少一个工作线圈。 至少两个用于温度补偿的构件位于不同的间隔点处。 这些构件对系统的主动部分的补偿效果联合地产生温度补偿值，其可选地近似等于实际温度曲线的确切值。 构件可以是分布在活性部分中的具有高的饱和磁化饱和磁化系数的多个微小的非易失性材料颗粒的形式。 构件可以由上述材料形成并且被定位在有源部件上，或者被定位成PTC或NTC电阻器。
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公开(公告)号：US4074781A
公开(公告)日：1978-02-21
申请号：US697260
申请日：1976-06-17
Applicant: Franz Josef Melcher
Inventor： Franz Josef Melcher
CPC classification number: G01G7/04 , G01G23/163
Abstract: Electromagnetically compensating weighing or dynamometer apparatus in which coil moves out of an equilibrium position relative to a magnet under the influence of a force, including a compensating circuit providing a compensation current proportional to the amplitude of the deflection, an a taring arrangement comprising a store and a digital/analog converter connected to the coil in parallel to the compensation circuit.
Abstract translation: 电磁补偿称重或测力计装置，其中线圈在力的影响下相对于磁体移动离开平衡位置，包括提供与偏转幅度成比例的补偿电流的补偿电路，包括存储器的皮重装置 以及与所述线圈并联连接到所述补偿电路的数/模转换器。
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68.发明授权
公开(公告)号：US4062417A
公开(公告)日：1977-12-13
申请号：US686513
申请日：1976-05-14
Applicant: Peter Kunz
Inventor： Peter Kunz
CPC classification number: G01G7/04
Abstract: Improved weighing apparatus of the electromagnetic type is disclosed including linearizing means for controlling the operation of either the compensating means or the indicating means of the system to effect linearization of the load indication over the weighing range, whereby the effect of the compensating coil magnetic field on the main magnetic field of the instrument is eliminated. In the preferred embodiment, smoothing capacitor means are connected with the reference voltage input terminal of the voltage-to-current converter of the constant current source, switch means being operable to control the charging and discharging of the smoothing capacitor means in accordance with the time periods during which compensating current is periodically supplied to the compensating coil means. In an alternate embodiment, the linearization means are provided within the internal structure of digital voltmeter means, and in a further embodiment, the linearization means includes an analog multiplier connected between the digital voltmeter means and the measuring resistor across which the compensation current to the coil is measured.
Abstract translation: 公开了一种改进的电磁式称重装置，包括用于控制系统的补偿装置或指示装置的操作的线性化装置，以在称重范围内实现负载指示的线性化，由此补偿线圈磁场的作用 消除了仪器的主磁场。 在优选实施例中，平滑电容器装置与恒流源的电压 - 电流转换器的参考电压输入端连接，开关装置可操作以根据时间来控制平滑电容器装置的充电和放电 补偿电流周期性地提供给补偿线圈装置的周期。 在替代实施例中，线性化装置设置在数字电压表装置的内部结构内，并且在另一实施例中，线性化装置包括连接在数字电压表装置和测量电阻之间的模拟乘法器，对线圈的补偿电流 被测量。
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公开(公告)号：US4059011A
公开(公告)日：1977-11-22
申请号：US605552
申请日：1975-08-18
Applicant: Joseph M. Reiss
Inventor： Joseph M. Reiss
Abstract: A method and apparatus for providing data related to the ice breaking efficiency of a hull of a vessel as the vessel passes through ice, and particularly for providing data related to the frictional forces experienced on the hull of the vessel as the vessel passes through ice. Movable means is carried on the hull of the vessel generally flush with the hull for displacement in response to forces applied thereto as the vessel passes through ice. The displacement of said movable means relative to the hull of the vessel is determined as a manifestation of frictional forces between the hull of the vessel and the ice. The movable means preferably comprises a generally coplanar relation therewith and flush with the outer hull skin. The plate is mounted on a plate suspending means which permits omnidirectional movement of the plate at least in the plane of the hull. In one embodiment, the degree of movement of the plate is sensed by a plurality of electromagnets carried by the hull of the ship and disposed at spaced positions adjacent the edges of the plate, with the electromagnets cooperating with a plurality of electrical conductors carried by the plate adjacent respective ones of the plurality of electromagnets, the electrical conductors producing electrical signals related to the degree of movement of the plate relative to the plurality of electromagnets. In another embodiment, plate movement is sensed by displacement probes in contact therewith and arranged to provide electrical signals representing displacement.
Abstract translation: 一种用于在船舶通过冰时提供与船舶船体的破冰效率有关的数据的方法和装置，特别是当船舶通过冰时提供与在船体上所经历的摩擦力有关的数据。 可移动装置在船体的船体上承载，其大体上与船体齐平，以响应于船舶通过冰而施加到其上的力而移位。 所述可移动装置相对于船体的位移被确定为船体与冰之间的摩擦力的表现。 可移动装置优选地包括与其大致共面的关系并且与外壳皮肤齐平。 板被安装在板悬挂装置上，其允许板至少在船体的平面中进行全方位运动。 在一个实施例中，板的移动程度由船的船体承载的多个电磁体感测，并且设置在与板的边缘相邻的间隔位置处，电磁体与多个电导体 板相邻于多个电磁体中的相应电极，电导体产生与板相对于多个电磁体的移动程度相关的电信号。 在另一个实施例中，通过与其接触的位移探头感测板移动，并且布置成提供表示位移的电信号。
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公开(公告)号：US4020687A
公开(公告)日：1977-05-03
申请号：US589487
申请日：1975-06-20
Applicant: Peter Fischer
Inventor： Peter Fischer
Abstract: An electrodynamic force measuring apparatus comprising a force coil arranged in a stationary magnetic field and movable out of a null position by means of the force which is to be measured. The force coil is supplied with a current through the agency of an amplifier as a function of its deviation out of the null position as detected by a feeler. This current, under the action of the stationary magnetic field, produces a restoring force which forces back the force coil into the null position. The force coil is connected in series with a compensation coil which varies the field intensity of the stationary magnetic field. The compensation coil is dimensioned to alter the magnetic field resulting from the stationary magnetic field and the magnetic field produced by the current in the force coil in such a manner that the restoring force acting upon the force coil remains proportional to the current.
Abstract translation: 一种电动力测量装置，包括设置在固定磁场中的力线圈，并且借助于待测量的力而从零位置移动。 通过放大器的代理，力线圈被提供作为其由探测器检测到的零位置之外的偏差的函数。 该电流在固定磁场的作用下产生恢复力，该力使力线圈回到零位置。 力线圈与补偿线圈串联连接，该补偿线圈改变固定磁场的场强。 补偿线圈的尺寸被设计成改变由固定磁场产生的磁场和由力线圈中的电流产生的磁场，使得作用在力线圈上的恢复力保持与电流成比例。
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