Electromagnetically compensating beam balance
    2.
    发明授权
    Electromagnetically compensating beam balance 失效
    电磁补偿光束平衡

    公开(公告)号:US4153124A

    公开(公告)日:1979-05-08

    申请号:US795636

    申请日:1977-05-10

    摘要: An electromagnetically compensating beam balance has a balance housing, a am and a fixed counterweight. Weight changing means, which change the weighing range (scale) by substitution, are provided on the load receiving side. A parallel guidance system is provided. Rods which accept only horizontal forces are coupled between a load carrier and the housing. Vertical flexure elements, which accept vertical forces, are coupled between the beam and the load carrier.

    摘要翻译: 电磁补偿光束平衡具有平衡壳体,梁和固定配重。 在负载接收侧设置通过替换来改变称重范围(刻度)的重量变更单元。 提供了平行引导系统。 仅接收水平力的杆被耦合在负载托架和壳体之间。 接收垂直力的垂直弯曲元件连接在梁和载荷载体之间。

    Electromagnetic force-compensating weighing appliance
    3.
    发明授权
    Electromagnetic force-compensating weighing appliance 失效
    电磁力补偿称重装置

    公开(公告)号:US4276949A

    公开(公告)日:1981-07-07

    申请号:US100036

    申请日:1979-12-04

    IPC分类号: G01G7/04 G01G7/00 G01G3/14

    CPC分类号: G01G7/04

    摘要: An electromagnetic force-compensating weighing appliance has at least two levers engaged at one of their ends in supporting relationship to a load scale, and each connected at their other ends to a respective compensating coil, the compensating coils being symmetrically disposed in the air gap of a single magnet unit, and the levers being pivotally supported between their ends on fixed supports.

    摘要翻译: 一种电磁力补偿称量装置具有至少两个杆,它们的一端处于一个端部,与负载标尺呈支撑关系,并且每个杠杆的另一端连接到相应的补偿线圈,所述补偿线圈对称地设置在 单个磁体单元,并且所述杠杆在它们的端部之间枢转地支撑在固定支撑件上。

    Electromagnetically compensating precision scale with flexure for
thermal expansion
    4.
    发明授权
    Electromagnetically compensating precision scale with flexure for thermal expansion 失效
    用热膨胀的挠曲电磁补偿精度

    公开(公告)号:US4300646A

    公开(公告)日:1981-11-17

    申请号:US79529

    申请日:1979-09-27

    CPC分类号: G01G7/04 G01G21/244

    摘要: An electromagnetically compensated precision scale has a load support guided for parallel movement by a guide assembly comprising upper and lower guides defining a triangular shape in plan connected to a housing and to the load support by flexible couplings, and wherein the guides are one-piece and define a vertical joint at the triangle apex, thereby reducing inaccurate readings caused by thermal effects.

    摘要翻译: 电磁补偿的精密秤具有由导向组件引导并行运动的负载支撑件,该导向组件包括上部和下部引导件,该导向组件限定了平面连接到壳体上的三角形形状,并且通过柔性联接器连接到负载支撑件,并且其中导向件是一体的, 在三角形顶点定义垂直关节,从而减少热效应引起的不准确读数。

    Compensating force-measuring or weighing device
    5.
    发明授权
    Compensating force-measuring or weighing device 失效
    补偿力测量或称重装置

    公开(公告)号:US4091886A

    公开(公告)日:1978-05-30

    申请号:US762679

    申请日:1977-01-26

    CPC分类号: G01L1/086 G01G7/04

    摘要: 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.

    摘要翻译: 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。

    Weighing machine with flat magnets for electromagnetic torque
compensation
    6.
    发明授权
    Weighing machine with flat magnets for electromagnetic torque compensation 失效
    称重机用扁平磁铁进行电磁转矩补偿

    公开(公告)号:US4382480A

    公开(公告)日:1983-05-10

    申请号:US283035

    申请日:1981-07-13

    CPC分类号: G01G7/04 G01G21/244

    摘要: A weighing machine employing electromagnetic forces having a weighing pan which is mounted at the top portion thereof. An electromagnetic coil is employed in an air gap of a stationary permanent magnet system for generating a compensating force. The coil has a rectangular shape while the permanent magnet system consists of rectangular plates of magnetically active material with the vertical direction of magnetism being above or below the longer sides of the coil. A horizontal compensating force results.

    摘要翻译: 一种称重机,其采用具有安装在其顶部的称重盘的电磁力。 在用于产生补偿力的固定永磁体系统的气隙中采用电磁线圈。 线圈具有矩形形状,而永久磁铁系统由磁性活性材料的矩形板组成,其垂直方向的磁性高于或低于线圈的长边。 产生水平补偿力。

    Electric balance
    7.
    发明授权
    Electric balance 失效
    电气平衡

    公开(公告)号:US4625818A

    公开(公告)日:1986-12-02

    申请号:US712763

    申请日:1985-03-18

    CPC分类号: G01G7/04

    摘要: The invention suggests an intermittent mode of operation to reduce the stray power in the coil in a balance based on the principle of the electromagnetic compensation of force. To this end, switching means (21) are provided which can interrupt the current flow through the coil (11) so that when the current flow is interrupted, the movable parts (2-9) of the balance move against one of the stops (24) or (25). These switching means (21) are controlled by the digital signal processing unit (18). In addition storage means (20) are provided within the framework of the digital signal processing unit which store the last-determined weight value for the duration of the interruption of the current flow through the coil.

    摘要翻译: 本发明提出了一种基于力的电磁补偿原理的平衡的减少线圈中的杂散功率的间歇操作模式。 为此,提供了可以中断通过线圈(11)的电流的开关装置(21),使得当电流流动被中断时,天平的可移动部分(2-9)移动到其中一个止动件 24)或(25)。 这些切换装置(21)由数字信号处理单元(18)控制。 此外,存储装置(20)设置在数字信号处理单元的框架内,其存储在通过线圈的电流中断的持续时间中的最后确定的权重值。

    Parallel construction for a top-loading balance
    8.
    发明授权
    Parallel construction for a top-loading balance 失效
    平行施工为顶部装载平衡

    公开(公告)号:US4153126A

    公开(公告)日:1979-05-08

    申请号:US885590

    申请日:1978-03-13

    IPC分类号: G01G7/02 G01G21/24

    CPC分类号: G01G21/244 G01G21/24 G01G7/02

    摘要: A parallel construction, particularly for a top-loading balance with elecmagnetic force compensation, has two essentially identical, preferably trapezoidal, movable guides in parallel horizontal planes. The guides are mounted permanently at one end and connected together by a movable rigid connecting element at the other end. The two guides are displaced relative to one another in their planes at right angles to their axis of rotation.

    摘要翻译: 特别是用于具有电磁力补偿的顶部负载平衡的平行结构在平行水平面中具有两个基本上相同的,优选梯形的,可移动的导向件。 引导件永久地安装在一端并且在另一端通过可移动的刚性连接元件连接在一起。 两个引导件在它们的平面中相对于它们的旋转轴线成直角地相对移位。

    Electromagnetically compensated balance or dynamometer
    9.
    发明授权
    Electromagnetically compensated balance or dynamometer 失效
    电磁补偿平衡或测力计

    公开(公告)号:US4004458A

    公开(公告)日:1977-01-25

    申请号:US664416

    申请日:1976-03-05

    IPC分类号: G01G7/04 G01L1/08 G01L1/00

    CPC分类号: G01G7/04 G01L1/086

    摘要: A balance or dynamometer which comprises a coil in the work gap of an eleomagnet having a core provided with discrete groups of turns, the number of ampere turns in the groups of turns corresponding to the sequence or code values of a preselector code, the coil and electromagnet being disturbed from a predetermined position relative to each other under the influence of a force; such disturbance being recorded by a position indicator connected to the input of a forward/backward counter; means for arranging that the number registered in the counter at any one time connects an associated number of groups of turns to a constant current source connected to the coil; the coil and electromagnet returning to said predetermined position when the counter has connected an appropriate number of groups of turns to the constant current source to compensate for the disturbing force.

    摘要翻译: 一种天平或测力计,其包括在具有分立匝数的铁芯的电磁体的工作间隙中的线圈,所述匝数的匝数与预选器代码的序列或代码值相对应,线圈和 电磁铁在力的作用下相对于彼此从预定位置扰乱; 这种干扰由连接到前向/后向计数器的输入的位置指示器记录; 用于布置在任一时刻在计数器中登记的号码将相关数量的匝数连接到连接到线圈的恒流源的装置; 当计数器已经将适当数量的匝数连接到恒流源以补偿干扰力时,线圈和电磁体返回到所述预定位置。

    Electric balance
    10.
    发明授权
    Electric balance 失效
    电气平衡

    公开(公告)号:US4656599A

    公开(公告)日:1987-04-07

    申请号:US664966

    申请日:1984-10-26

    摘要: It is necessary, when high requirements are demanded from balances, that the effect of different disturbance variables such as, e.g., temperature and/or moisture on the measuring system be corrected. To this end, temperature and moisture sensors are used from whose output signal correction values are calculated. The invention suggests that a storage area be provided into which the instantaneous measured results of these sensors are stored in succession, where they remain stored for a set time. This data stemming from different times, evaluated with set weighting factors, could then be used to calculate the corrections. This makes it possible to obtain a good correction of changing disturbances even with a different behavior in time of sensors and measuring system.

    摘要翻译: 当需要来自平衡的高要求时,有必要校正不同干扰变量(例如温度和/或水分)对测量系统的影响。 为此,使用从其输出信号校正值计算出的温度和湿度传感器。 本发明提出一种存储区域,其中这些传感器的瞬时测量结果被连续存储在该存储区域中,在那里它们保持存储一段设定的时间。 然后可以使用由不同时间产生的数据,用设定的加权因子进行评估,以计算校正值。 这使得即使在传感器和测量系统的时间上具有不同的行为,也可以获得改变的干扰的良好校正。