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1.发明授权
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。
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2.发明授权
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。
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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。
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公开(公告)号：US4004458A
公开(公告)日：1977-01-25
申请号：US664416
申请日：1976-03-05
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。
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公开(公告)号：US4656599A
公开(公告)日：1987-04-07
申请号：US664966
申请日：1984-10-26
申请人： Erich Knothe , Franz-Josef Melcher , Jurgen Ober , Christoph Berg , Klaus Dardat , Eduard Bierich , Gunther Maaz
发明人： Erich Knothe , Franz-Josef Melcher , Jurgen Ober , Christoph Berg , Klaus Dardat , Eduard Bierich , Gunther Maaz
CPC分类号： G01G23/3707 , G01G23/48 , G01G7/02
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。
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6.发明授权Measuring system having a balance with digital display having digit appearance modifying circuit 失效与具有数字外观修改电路的数字显示器具有平衡的测量系统
公开(公告)号：US4344494A
公开(公告)日：1982-08-17
申请号：US146399
申请日：1980-05-05
CPC分类号： G01G23/3707 , Y10S177/03
摘要： A balance is provided with a digital readout, a display device and transfer device for transferring measured values to the display device at a selected frequency. The frequency can be varied. An accessory circuit is provided for modifying at least the last digit appearing on the display device in response to an arrest criterion or a condition of the balance, such as an open measuring chamber or position of a draft shield. The criterion can be developed from comparing successive measured values.
摘要翻译： 提供了数字读出器，显示装置和传送装置的平衡，用于以所选择的频率将测量值传送到显示装置。 频率可以变化。 提供辅助电路，用于响应于暂停标准或平衡状态，例如打开的测量室或防风罩的位置，至少修改出现在显示装置上的最后一个数字。 该标准可以通过比较连续的测量值来开发。
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公开(公告)号：US4907179A
公开(公告)日：1990-03-06
申请号：US155602
申请日：1988-02-12
CPC分类号： G01G23/36 , G01G23/16 , Y10S177/03
摘要： An electronic balance with a digital display for the exact display of the weighing result, with an quasi analog display for the estimated display of the balance (gross) load, whereby the a quasi analog display consists of at least one horizontal band of activatable points (7), and with a taring operation, that suitable activatable segments (8, 10) be located within, directly above or directly below the first horizontal band of activatable points (7) with which such suitable segments a "T" symbol (9) can be activated at a plurality of positions along the first horizontal band and that the "T: symbol be activated during taring at the horizontal position which corresponds to said tare weight on the horizontal band (7) of the quasi analog display while a horizontal bar formed by suitable activation of activatable points indicates gross weight. This makes it possible to display in a simple manner the relative position at which taring was performed. Still other segments (8, 10') can also be used in an advantageous manner as a scale for the quasi analog display.
摘要翻译： 具有用于精确显示称重结果的数字显示器的电子天平，具有用于估计平衡（总）负载的显示的准模拟显示，由此准模拟显示器由至少一个可激活点的水平带组成 7），并且通过皮重操作，适当的可激活部分（8,10）位于可激活点（7）的第一水平带的正上方或正下方，这样适合的部分“T”符号（9） 可以在沿着第一水平带的多个位置处被激活，并且在与模拟显示器的水平带（7）上对应于所述去皮重的水平位置处的“T”符号被激活，而水平条 通过合适的可激活点激活形成的毛重指示毛重，这样可以以简单的方式显示进行皮重的相对位置，其他部分（8,10'）也可以是 以有利的方式用作准模拟显示器的标尺。
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公开(公告)号：US5902965A
公开(公告)日：1999-05-11
申请号：US19712
申请日：1998-02-06
CPC分类号： G01G19/24 , G01G23/3707
摘要： In an electronic balance for loading having a balance scale (3) weighing system, display (19), control keyboard (21 to 26) and a digital processing electronic circuitry in which circuitry at least one memory is present for the weighed value shown in the display (19). A first additional key (25) is present in the control keyboard (21 to 26) upon the actuation of the key the weighed value shown in the display (19) and stored in the digital signal processing electronics is decreased and upon the first actuation of the key the weighed value displayed immediately previously is taken in addition into a first additional memory. Furthermore, a second additional key (24) is present in the control keyboard (21 to 26) upon whose actuation the weighed value displayed in the display (19) is taken into a second additional memory. By means of the decreasing key the balance operator can decreased the display from the too large actual value step-by-step to the correct theortical value. Since the overload is generally only a few numerical steps of the balance display, this is achieved with a few steps. The balance can calculate the percentage overload by storing the balance display prior to the decreasing and during the conclusion of the decreasing and subsequently bring about the same overloading in the known manner for each of the remaining components. This creates the possibility even for simple loading balances without an electronic recipe memory of compensating an inadvertent overloading of a component by means of a overloading of the other components in equal percentage.
摘要翻译： 在用于具有平衡秤（3）称重系统，显示器（19），控制键盘（21至26）和数字处理电子电路的负载的电子天平中，其中电路至少存在一个存储器，用于在 显示（19）。 在键的致动时，第一附加键（25）存在于控制键盘（21至26）中，存储在数字信号处理电子设备中的存储在显示器（19）中的加权值减小，并且在第一致动 之前显示的称重值的键被另外添加到第一个附加存储器中。 此外，在控制键盘（21至26）中存在第二附加键（24），在显示器（19）中显示的加权值被驱动到第二附加存储器中。 通过减号键，平衡操作员可以将显示从过大的实际值逐步降低到正确的皮重值。 由于过载通常只是平衡显示的几个数字步骤，这是通过几个步骤实现的。 天平可以通过在减少之前和结束时存储平衡显示来计算百分比过载，并且以已知的方式为每个剩余组件引起相同的过载。 即使对于简单的负载平衡而言，即使在没有电子配方存储器的情况下，也可以通过以相等百分比的其他部件的过载来补偿组件的意外过载。
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公开(公告)号：US4890246A
公开(公告)日：1989-12-26
申请号：US122696
申请日：1987-11-19
CPC分类号： G01G23/012 , G01G23/48
摘要： In high-resolution electric balances a certain residual temperature coefficient remains even with a good correction of the temperature-dependent errors of the measured value sensor. The invention therefore is with respect to a balance with a built-in calibrating weight (standard) which responds with a new calibration switching in said calibrating weight if a given temperature changes has been exceeded since the last calibration. To this end, the balance comprises in microprocessor digital signal processing unit a separate memory area in which the output signal representing temperature value of a temperature sensor is stored during the calibrating process and also comprises a comparator which upon instruction compares the instantaneous output signal of the temperature sensor which the value stored in this separate memory area. If this difference exceeds a given amount, a signal element indicative of need to recalibrate using the calibrating weight is actuated. In addition, an elapsed time indicator can also be present which also actuates the signal element after the passage of a given time since the last calibration.In an advanced embodiment the apparatus will automatically cause recalibration to physically take place by having the signal processing unit control a motor which will switch the calibrating weight into weighing position. Said automatic recalibration taking place instead of or in addition to actuation of the signal element. Other physical science inputs can also be sensed and utilized by themselves or in combination in determining when recalibration should occur.
摘要翻译： 在高分辨率电气平衡中，即使通过对测量值传感器的温度相关误差的良好校正，一定的残余温度系数仍然保持不变。 因此，本发明是相对于内置的校准重量（标准）的平衡，如果自上次校准以来已经超过给定的温度变化，则在所述校准重量中进行新的校准切换。 为此，平衡包括在微处理器数字信号处理单元中的单独的存储区域，其中在校准过程期间存储表示温度传感器的温度值的输出信号，并且还包括比较器，当比较器根据指令比较温度传感器的瞬时输出信号 温度传感器，其值存储在该单独的存储区域中。 如果该差异超过给定量，则启动指示需要使用校准重量重新校准的信号元件。 此外，还可以存在经过的时间指示器，其也在自上次校准之后经过给定时间后也起动信号元件。 在先进的实施例中，该设备将通过使信号处理单元控制将校准重量转换成称重位置的电动机来自动地进行重新校准以物理地发生。 所述自动重新校准取代或除了致动信号元件之外发生。 其他物理科学输入也可以被自身感知和利用，或者组合确定何时应该重新校准。
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公开(公告)号：US4848477A
公开(公告)日：1989-07-18
申请号：US259724
申请日：1988-10-19
IPC分类号： G01G23/01
CPC分类号： G01G23/01
摘要： The invention suggests for an electronic balance with a balance scale (1), with a parallel guide for the balance scale (1), with at least one sensor which measures the torques transferred from the balance scale (1) to the parallel guide, with storage means in the electronic circuitry of the balance in which means the magnitude of the corner-load inaccuracies of the parallel guide is stored in the form of corner-load correction factors and with switching means or program parts in the electronic circuitry of the balance which correct the weight value outputted from the measuring system on the basis of the output signals of the sensor or sensors and of the stored corner-load correction factors that controllable signals (10-13) are provided which designate the corners and sides of the balance scale (1). The signals can be formed by light sources adjacent to the balance scale (1) or in the corners or on the sides of the display field (9). The use of individual segments of the 7-segment numbers (3) of the balance display is preferred. An operator control can be achieved with these signals when readjusting the corner-load freedom of the balance.
摘要翻译： 本发明提出了一种具有平衡秤（1）的电子天平，具有用于平衡秤（1）的平行导轨，其中至少一个传感器测量从平衡秤（1）传递到平行导轨的扭矩， 平衡导轨的电子电路中的存储装置意味着平行导轨的拐角负载不准确度的大小以角负载校正因子的形式存储，并且在天平的电子电路中以开关装置或程序部分存储 基于传感器或传感器的输出信号和存储的角位负载校正因子校正测量系统输出的重量值，所述转角负载校正因子是指定平衡秤的角和边的可控信号（10-13） （1）。 信号可以由与平衡秤（1）相邻的光源或显示区域（9）的角落或侧面形成。 优选使用平衡显示的7段数（3）的各个段。 当重新调整天平的角载荷自由度时，可以利用这些信号实现操作员控制。
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