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公开(公告)号：US20180252570A1
公开(公告)日：2018-09-06
申请号：US15908452
申请日：2018-02-28
申请人： Bizerba SE & Co. KG
发明人： Juergen Fiehn , Annika Schreiber , Thomas Eger
CPC分类号： G01G3/142 , G01G3/1402 , G01G21/244 , G01G21/28 , G01G23/01 , G01G23/015 , G01G23/017
摘要： The present invention relates to a load cell for a scale having a monolithically configured measurement body that has a force reception section, a force introduction section, and a joint section arranged between the force reception section and the force introduction section, having at least one strain gauge arranged at the upper side on the joint section for detecting a stretching deformation of the measurement body, and having electronics that are arranged at the force reception side, that are at least partly arranged on a circuit board, and that have a memory in which calibration data of the load cell and/or a value for gravity are stored, wherein a hardware interface is provided via which the memory can be accessed and via which the calibration data stored in the memory and/or the value for gravity can be changed.
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公开(公告)号：US5254992A
公开(公告)日：1993-10-19
申请号：US785539
申请日：1991-10-31
申请人： Harry J. Keen , Leon E. Saucier
发明人： Harry J. Keen , Leon E. Saucier
CPC分类号： G01D3/0365 , G01G3/142 , G01R19/32 , Y10S177/03
摘要： A microprocessor (8) controlled power-saving electronic measuring system is disclosed. A load cell (1) generates an output signal indicative of the magnitude of the load applied to the cell (1). A DC power supply (2) is switched to supply the load cell (1) with power pulses (10) at varying frequencies and duty cycles determinable by the microprocessor (8) to optimize battery life. The microprocessor (8) determines the optimal duty cycle and frequency for the power pulses responsive to desired parameters. The circuitry of the present invention is located in close proximity to a temperature sensor (34) which accurately reads the temperatures of all of the components and compensates for all heat related inaccuracies simultaneously. The microprocessor (8) determines a temperature corrected value for the load cell (1) output via a previously programmed table containing the temperature response characteristics for the load cell (1) and the circuitry. In an over/under indicator mode, segments of the display (36) LED's are configured to graphically indicate whether the current weight on the scale is within a desired tolerance. A power saving sleep mode in described in which the system voltage level is reduced, and most of the circuitry is disabled.
摘要翻译： 公开了一种微处理器（8）控制的省电电子测量系统。 测力传感器（1）产生指示施加到电池（1）的负载的大小的输出信号。 直流电源（2）被切换以向功率脉冲（10）提供以微处理器（8）可确定的变化频率和占空比的功率脉冲（10），以优化电池寿命。 微处理器（8）响应于期望的参数确定功率脉冲的最佳占空比和频率。 本发明的电路位于靠近温度传感器（34）的位置，该温度传感器（34）精确地读取所有部件的温度并且同时补偿所有与热有关的不准确性。 微处理器（8）通过包含测力传感器（1）和电路的温度响应特性的预先编程的表格来确定输出的测力传感器（1）的温度校正值。 在过/不足指示器模式下，显示器（36）LED的段被配置为以图形方式指示刻度上的当前重量是否在期望的公差内。 所描述的省电休眠模式，其中系统电压电平降低，并且大部分电路被禁用。
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公开(公告)号：US4951765A
公开(公告)日：1990-08-28
申请号：US377743
申请日：1989-07-10
申请人： Kazufumi Naito , Seiji Nishide
发明人： Kazufumi Naito , Seiji Nishide
CPC分类号： G01G3/1412 , G01G3/142 , G01G3/18
摘要： Strain gages are attached to respective strain sensing areas of the strain generator of a load cell. Those strain gages which are mounted on expansive sides of the strain generator are connected in series with each other, and those strain gages which are mounted contactive sides of the strain generator are connected in series with each other, forming first and second series-connected circuits. The first and second series-connected circuits are connected in series with each other as a half bridge. A load applied to the strain generator is detected by an output signal produced from the junction between the first and second series-connected circuits. A temperature compensating resistor for compensating for a temperature-dependent change in the output signal due to a change in the temperature of the strain generator is connected in a circuit separate from the half bridge. Gain control is effected to eliminate a change in the output signal from the load detecting circuit based on a change in the resistance of the temperature compensating resistor.
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公开(公告)号：US4763739A
公开(公告)日：1988-08-16
申请号：US118379
申请日：1987-11-09
申请人： Harvey A. Kasinoff
发明人： Harvey A. Kasinoff
CPC分类号： G01G3/142
摘要： An energy efficient scale using a load cell for weight detection and a power supply for powering the load cell at one or another of three different current levels. The highest current level provides accurate weight indication. The intermediate current level provides only a signal indicating the presence of a package on the scale. The lowest current level is sufficient only for keeping the load cell electrically centered. If a package is placed on the scale while the load cell is receiving current at the intermediate level, then a resulting package detection signal causes the scale to switch to full operating current.
摘要翻译： 使用用于重量检测的测力传感器的能量效率标度和用于为三个不同电流水平中的一个或另一个为负载传感器供电的电源。 最高电流水平提供精确的重量指示。 中间电流电平仅提供指示在秤上存在封装的信号。 只有将负载传感器保持在电中心位置时，最低电流水平就足够了。 如果在称重传感器接收到中间电平的电流时，在秤上放置一个封装，则产生的封装检测信号会使标尺切换到完全工作电流。
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公开(公告)号：US4722406A
公开(公告)日：1988-02-02
申请号：US847777
申请日：1986-04-03
申请人： Kazufumi Naito
发明人： Kazufumi Naito
摘要： An electronic weigher includes a load cell for producing as an output an electric signal proportional to a load, an operational amplifier for amplifying the electric signal produced by the load cell, A/D converter for converting an output signal produced by the operational amplifier into a digital signal, a bias circuit for delivering a dummy signal for test purposes to the operational amplifier, and a switch disposed between the bias circuit and the proportional amplifier for applying the dumy signal to the operational amplifier, wherein amplification circuitry from the operational amplifier to the A/D converter is diagnosed by operating the switch.
摘要翻译： 电子称重器包括用于产生与负载成比例的电信号作为输出的测力传感器，用于放大由测力传感器产生的电信号的运算放大器，用于将由运算放大器产生的输出信号转换成运算放大器的A / D转换器 数字信号，用于将用于测试目的的虚拟信号传送到运算放大器的偏置电路以及设置在偏置电路和比例放大器之间的开关，用于将运算放大器施加该放大信号，其中放大电路从运算放大器到 通过操作开关诊断A / D转换器。
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公开(公告)号：US4574899A
公开(公告)日：1986-03-11
申请号：US659851
申请日：1984-10-10
申请人： Neil C. Griffin
发明人： Neil C. Griffin
CPC分类号： G01G3/1404 , G01G3/142
摘要： The present invention relates to an improved scale arrangement comprising three or more load cells which are compensated for both lateral and longitudinal displacement of the load on the scale platter or platform and to a method of accurately compensating the scale so that the output of the scale is independent of the position of the weight on the scale. Only two strain gages are provided for each load cell which gages are connected in a single bridge circuit. Compensating resistor networks are connected to at least certain of the strain gages.
摘要翻译： 本发明涉及一种改进的比例装置，其包括三个或更多个称重传感器，这些称重传感器补偿了刻度盘或平台上的负载的横向和纵向位移，以及准确地补偿标尺的方法，使得标尺的输出 独立于秤的重量位置。 每个称重传感器只提供两个应变计，这些量规在单个电桥电路中连接。 补偿电阻网络连接至至少某些应变计。
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公开(公告)号：US3780817A
公开(公告)日：1973-12-25
申请号：US3780817D
申请日：1969-02-28
申请人： VIDEON J
发明人： VIDEON J
CPC分类号： G01G3/142 , G01B7/18 , G01G3/1406 , G01G19/12
摘要： This invention is directed to a load-indicating apparatus for measuring the deflection of a relatively stiff non-spring member. The apparatus includes a non-spring member such as the stationary axle of a truck which is capable of flexing in a predetermined direction under load. Mounted on the axle are two spaced-apart, rigid supports which upstand therefrom in a direction whereby the upper ends of the supports will move toward and away from each other as the axle flexes. A transducer is connected to the upper ends of the supports for measuring the distance therebetween as they move and to provide an indication of the load on the axle.
摘要翻译： 本发明涉及一种用于测量相对较硬的非弹簧部件的挠曲的载重指示装置。 该装置包括非弹簧构件，例如卡车的固定轴，其能够在负载下沿预定方向弯曲。 安装在轴上的是两个间隔开的刚性支撑件，该支撑件沿着一个方向从其向上抵靠，由此当轴弯曲时，支撑件的上端将彼此移动并远离彼此。 传感器连接到支撑件的上端，用于在它们移动时测量它们之间的距离，并提供轴上的载荷的指示。
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8.发明授权Batching system utilizing digital-to-analog subtraction to denote the amount of batched material 失效使用数字到模拟信号的计量系统来计算批量的材料量
公开(公告)号：US3708027A
公开(公告)日：1973-01-02
申请号：US3708027D
申请日：1972-01-31
申请人： RAMSEY ENG CO
发明人： HILL J
CPC分类号： G01G3/142 , G01G23/37 , Y10S177/03
摘要： A series of pulses from a controlled pulse generator are counted by a counter and the count is converted to a negative analog voltage signal having a value denoting the count. A positive analog voltage signal is provided in accordance with the raw gross weight of a batching hopper. Both analog signals are applied to the non-inverting input of an operational amplifier having a gain of ''''two.'''' When the values of the two analogs are equal, the amplifier output is zero. The pulse generator is controlled by a comparator that monitors the zero output condition to stop the further production or forwarding of pulses. The counter registers the total weight and the processed analog signal at the amplifier output represents the net weight added to the hopper for each material admission.
摘要翻译： 来自受控脉冲发生器的一系列脉冲由计数器计数，并将该计数转换成具有表示计数值的负模拟电压信号。 根据配料斗的原始总重量提供正模拟电压信号。 两个模拟信号都被施加到具有增益“2”的运算放大器的同相输入端。 当两个模拟量的值相等时，放大器输出为零。 脉冲发生器由比较器控制，该比较器监视零输出状态以停止进一步的生成或转发脉冲。 计数器记录总重量，放大器输出处理的模拟信号表示每次材料进入时添加到料斗的净重。
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公开(公告)号：US3557625A
公开(公告)日：1971-01-26
申请号：US3557625D
申请日：1968-07-26
申请人： HONEYWELL INC
摘要： AN ELECTRO-MECHANICAL SYSTEM IS UTILIZED TO DETECT THE WEIGHT, VOLUME AND TEMPERATURE OF A MEAT SAMPLE. A COMPUTER OPERATES ON THE INFORMATION SUPPLIED BY THE ELECTRO-MECHANICAL SYSTEM. THE COMPUTER OPERATES UPON THESE INPUTS IN CONJUNCTION WITH OTHER INPUTS AND CONSTANTS IN ORDER TO PRODUCE AN OUTPUT SIGNAL. THE OUTPUT SIGNAL IS REPRESENTATIVE OF THE PERCENTAGE FAT CONTENT OF THE SAMPLE BEING PROCESSED.
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