Method of fine adjusting balances and balance for performing this method
    91.
    发明授权
    Method of fine adjusting balances and balance for performing this method 失效
    调整平衡的方法和平衡方法

    公开(公告)号:US3869004A

    公开(公告)日:1975-03-04

    申请号:US28286272

    申请日:1972-08-22

    申请人: GALLO MARIO

    发明人: GALLO MARIO

    CPC分类号: G01G3/16 G01G23/163

    摘要: The present invention relates to a method of automatically fine adjusting balances comprising a computing instrument and digital display means, wherein the load is determined throughout the measuring range in terms of measuring units that are smaller than the units used for the indication. The object contemplated by the present invention resides in providing automatic zero adjustment in the zero range, which will permit a uniform degree of resolution for all values and identical load ranges for each value throughout the entire weighing range to be obtained. The automatic adjustment in the zero range relieves the operator of the necessity of doing more than infrequently resetting the coarse adjustment. At the same time manipulations in favour of the operator are practically impossible to carry out. The proposed method comprises first in each weighing ascertaining whether the measured value determined by the computing instrument is within the zero range and if so deducting 5 measuring units from the measured value, the result replacing a previously stored adjusting factor as a fresh adjusting factor, whereas in the alternative case the stored adjusting factor is deducted from the measured value determined by the computing instrument and the result indicated in multiples of indicating units. The invention also relates to a balance for performing this method comprising a computing instrument, digital display means, manually operable coarse adjusting means and an automatic fine adjusting means, wherein the measured load is determined by the computing instrument throughout the measuring range in measuring units that are smaller than the units in which the indication is made, characterized in that the smalles digit of the final decimal of the digital display means represents one unit of the indication, that in each measurement an adjusting factor stored in measuring units in a storage device is deducted in a first arithmetic unit preceding the computing instrument and connected to the computing instrument, from the measured value determined in the computing instrument, and that the result is indicated by the digital display means, that the value stored in said storage unit is determined by a second arithmetic unit connected through an AND-gate to the computing instrument and to a zero range circuit in such manner that whenever the measured value is within the zero range five measuring units are deducted from this measured value in said second arithmetic unit and the result used to replace the adjusting factor previously stored in the storage device.

    摘要翻译: 本发明涉及一种自动微调天平的方法,包括计算仪器和数字显示装置,其中根据小于用于指示的单位的测量单位,在整个测量范围内确定载荷。

    Electrical balance including monitoring means
    92.
    发明授权
    Electrical balance including monitoring means 失效
    电气平衡包括监测手段

    公开(公告)号:US3789937A

    公开(公告)日:1974-02-05

    申请号:US3789937D

    申请日:1973-06-25

    摘要: An improved electrical balance is disclosed of the type including stationary and load-responsive movable components, means being provided for supplying to signal evaluating means an analog load signal having a function that varies with load, said evaluation means being periodically operable during successive measuring periods to produce digitalized measurements that correspond with the load. The invention is characterized by the provision of balance monitoring means that disable the evaluation means in the event that movement of the movable balance component exceeds predetermined limits during the measurement period. The monitoring means further effects the transfer of each digitalized measurement result to associated data storage means only when the movement of the movable component has not exceeded the predetermined limits during the corresponding measurement period. In balances including load compensation means, the load signal may be the compensation current that is supplied to the compensation coil means.

    摘要翻译: 公开了包括静态和负载响应的可移动部件的类型的改进的电气平衡,提供用于向信号评估装置提供具有随负载变化的功能的模拟负载信号的装置,所述评估装置在连续的测量周期期间可周期性地操作, 产生与负载相对应的数字化测量。 本发明的特征在于提供了一种平衡监测装置,其在测量期间超过预定极限的可移动平衡组件的移动时禁止评估装置。 只有当可移动部件的运动在相应的测量周期内没有超过预定的限制时,监视装置进一步影响每个数字化的测量结果传送到相关联的数据存储装置。 在包括负载补偿装置的平衡中,负载信号可以是提供给补偿线圈装置的补偿电流。

    Weighing apparatus
    93.
    发明授权
    Weighing apparatus 失效
    称重装置

    公开(公告)号:US3744582A

    公开(公告)日:1973-07-10

    申请号:US3744582D

    申请日:1971-03-19

    申请人: CIBA GEIGY CORP

    发明人: WITHNELL R LACHMAN L

    CPC分类号: G01G3/16 B07C5/32 B07C5/365

    摘要: An arrangement for determining the weight of an object relative to a predetermined reference weight. A compliant system is vibrated along a predetermined axis substantially at the mechanical resonance frequency, said system having means for supporting the object. The system oscillation amplitude is proportional to the inertia of the system and is independent of gravity. The oscillation amplitude of the system is converted into an electrical signal which is compared with a reference signal representative of the reference weight and an error signal is utilized to provide a measurement and/or control function in correspondence with the difference between the weight of the object and the reference weight.

    Electronic measuring apparatus for measuring masses and forces
    94.
    发明授权
    Electronic measuring apparatus for measuring masses and forces 失效
    用于测量质量和力量的电子测量装置

    公开(公告)号:US3724573A

    公开(公告)日:1973-04-03

    申请号:US3724573D

    申请日:1972-05-09

    申请人: WIRTH GALLO & CO

    发明人: SANER K

    IPC分类号: G01G3/16 G01L1/10 G01G3/14

    CPC分类号: G01G3/165 G01L1/106

    摘要: Two pretensioned vibrating strings are respectively stressed and stress-relieved by a force to be measured, said force being applied through an adjusting member by which the angle of force application can be varied to compensate initial errors of the apparatus.

    摘要翻译: 两个预张紧的振弦通过被测量的力分别受应力和应力消除,所述力通过调节构件施加,通过该调节构件施加的角度可以改变以补偿装置的初始误差。

    Mass measuring system applied to belt conveyors
    95.
    发明授权
    Mass measuring system applied to belt conveyors 失效
    适用于皮带输送机的质量测量系统

    公开(公告)号:US3718031A

    公开(公告)日:1973-02-27

    申请号:US3718031D

    申请日:1970-12-03

    发明人: CHRISTMANN J

    IPC分类号: G01G3/16 G01G11/00

    CPC分类号: G01G11/00 G01G3/16

    摘要: A 90* phase angle lag is created between the resonant vibration frequency of a load on a belt conveyor and the frequency of a motor driven eccentric inducing vibration to stringers supporting the belt conveyor between vertical members and deviation of said phase angle is detected by a phase sensitive network which adjusts the motor. The speed of the motor is converted into a linear alternating current voltage transmitted across a potentiometer adjusted by the speed of the belt conveyor to produce the product of the speed of the belt conveyor and the load on said conveyor.

    摘要翻译: 在带式输送机上的负载的共振振动频率与引起振动的电动机驱动的偏心体的频率之间产生90°相位角滞后,从而在垂直构件之间支撑带式输送机的桁条和所述相位角的偏差由相位 调整电机的敏感网络。 电动机的速度被转换成通过由皮带输送机的速度调节的电位计传输的线性交流电压,以产生皮带输送机的速度和所述输送机上的负载的乘积。

    Electrical mass meter
    96.
    发明授权
    Electrical mass meter 失效
    电力仪表

    公开(公告)号:US3692128A

    公开(公告)日:1972-09-19

    申请号:US3692128D

    申请日:1971-01-26

    申请人: GALLO WIRTH & CO

    发明人: GALLO MARIO

    IPC分类号: G01G3/16 G01G3/14

    CPC分类号: G01G3/165

    摘要: An electrical mass meter having a frame with a baseplate, a weighing platform, a pre-tensioning mass linked to a force distributor which is in turn linked to the weighing platform, a plurality of transversely vibratable pre-tensioned strings having one end fixed to the weighing platform and the other end to the force distributor, and a transmitting element fixed to the frame and the strings, supporting thereby the weighing platform and transmitting to the strings an additional force proportional to a mass to be measured.

    摘要翻译: 一种电子质量计,具有带有基板的框架,称重平台,连接到力分配器的预张紧组件,该力分配器又连接到称重平台;多个横向可振动的预张紧的串,其一端固定到 称重平台,另一端连接到力分配器,以及固定到框架和弦的发送元件,由此支撑称重平台并向弦施加与待测量的成比例的附加力。