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    • 3. 发明授权
    • Noise canceling apparatus for weight measurement, and noise canceling method for weight measurement
    • 用于重量测量的噪声消除装置,以及用于重量测量的噪声消除方法
    • US06907128B2
    • 2005-06-14
    • US10436075
    • 2003-05-13
    • Takashi KimuraMasayoshi NakajimaShuuji MurataYukio WakasaKazuhiro Suhara
    • Takashi KimuraMasayoshi NakajimaShuuji MurataYukio WakasaKazuhiro Suhara
    • G01G23/37G01G3/147G01G23/10H03H17/02H03B29/00
    • H03H17/025G01G3/147G01G23/10H03H17/0294
    • A noise canceling apparatus (1) comprises an amplifier (10) for amplifying a measured signal (ms) outputted from a measuring device (3), an analog filter (11), an ADC (12), a digital filter (14), a coefficient control section (13), and a data input section (15). The digital filter (14) is a notch filter for attenuating a frequency component of a quantitative signal D(n) outputted from the ADC (12) at a plurality of notches (stop bands). A transfer function of the digital filter (14) is expressed by the product of a plurality of factors each having a root that corresponds to each one of the plurality of notches. The coefficient control section (13) changes a frequency component of a root corresponding to a notch selected from the plurality of notches, and thereafter, expands in a polynomial the transfer function of the reconstructed digital filter (14). On the basis of the polynomial thereby obtained, a new series of filter coefficients is calculated. A filter characteristic is controlled in such a manner that it conforms to a frequency variation of a fixed-period vibration noise, whereby the fixed-period vibration noise that varies in frequency is attenuated with a high degree of precision.
    • 噪声消除装置(1)包括用于放大从测量装置(3)输出的测量信号(ms)的放大器(10),模拟滤波器(11),ADC(12),数字滤波器(14), 系数控制部分(13)和数据输入部分(15)。 数字滤波器(14)是用于衰减在多个凹口(停止频带)处从ADC(12)输出的定量信号D(n)的频率分量的陷波滤波器。 数字滤波器(14)的传递函数由多个因子的乘积表示,每个因子各自具有与多个凹口中的每一个相对应的根。 系数控制部(13)改变与从多个切口中选择的切口对应的根的频率分量,然后以多项式扩大重构的数字滤波器(14)的传递函数。 根据得到的多项式,计算出一系列新的滤波器系数。 控制滤波器特性使其符合固定周期振动噪声的频率变化,由此频率变化的固定周期振动噪声以高精度衰减。
    • 9. 发明授权
    • Combination calculation method and combination measuring device
    • 组合计算方法和组合测量装置
    • US07015399B2
    • 2006-03-21
    • US10516356
    • 2004-04-26
    • Shuji MurataMasayoshi Nakajima
    • Shuji MurataMasayoshi Nakajima
    • G01G19/387
    • G01G19/393
    • The invention provides a combination measuring device allows fast measurement without lowering a measurement accuracy. The combination measuring device accommodates objects in a plurality of containers, performs combination calculation by measuring weights of the objects accommodated in the containers, discharging and collecting the objects selected for an optimum combination from the containers, and thereby obtaining the weighed objects having a target weight. This combination measuring device includes a plurality of measuring units, and a control portion. Each of the measuring units has a measuring portion for measuring the weight of the object accommodated in the container, and a stock portion for stocking the containers accommodating the weighed objects. The control portion performs the combination calculation by using weight values of all the objects stocked by the stock portions of all of the measuring units, while selecting zero or at most one container from each of the measuring units.
    • 本发明提供一种组合测量装置,其允许快速测量而不降低测量精度。 组合测量装置容纳多个容器中的物体,通过测量容纳在容器中的物体的重量来进行组合计算,从容器排出和收集被选择用于最佳组合的物体,从而获得具有目标重量的称重物体 。 该组合测量装置包括多个测量单元和控制部分。 每个测量单元具有用于测量容纳在容器中的物体的重量的测量部分和用于存放容纳被称重物体的容器的储存部分。 控制部分通过使用从所有测量单元的库存部分储存的所有物体的重量值来执行组合计算,同时从每个测量单元中选择零个或至多一个容器。
    • 10. 发明申请
    • Combination calculation method and combination measuring device
    • 组合计算方法和组合测量装置
    • US20050173159A1
    • 2005-08-11
    • US10516356
    • 2004-04-26
    • Shuji MurataMasayoshi Nakajima
    • Shuji MurataMasayoshi Nakajima
    • G01G19/387G01G19/393G01G13/00G01G19/32
    • G01G19/393
    • The invention provides a combination measuring device allows fast measurement without lowering a measurement accuracy. The combination measuring device respectively accommodates objects (101) in a plurality of containers (102), performs combination calculation by measuring weights of the objects accommodated in the containers, discharges and collects the objects selected for an optimum combination from the containers, and thereby obtaining the weighed objects having a target weight. This combination measuring device includes a plurality of measuring units (1, 2, 3 and 4), and a control portion (50). Each of the measuring units (1, 2, 3 and 4) has a measuring portion (21) for measuring the weight of the object accommodated in the container, and a stock portion (22) for stocking the plurality of containers accommodating the weighed objects. The control portion (50) performs the combination calculation by using weight values of all the objects stocked by the stock portion of each of the measuring units, while selecting at most one container from each of the measuring units, and thereby obtaining the optimum combination.
    • 本发明提供一种组合测量装置,其允许快速测量而不降低测量精度。 组合测量装置分别容纳多个容器(102)中的物体(101),通过测量容纳在容器中的物体的重量来执行组合计算,从容器排出并收集被选择用于最佳组合的物体,从而获得 称重的物体具有目标重量。 该组合测量装置包括多个测量单元(1,2,3和4)和一个控制部分(50)。 每个测量单元(1,2,3和4)具有用于测量容纳在容器中的物体的重量的测量部分(21)和用于存放容纳被称重物体的多个容器的储存部分(22) 。 控制部(50)通过使用由各测量单元的库存部分储存的所有物体的重量值进行组合计算,同时从每个测量单元选择至多一个容器,从而获得最佳组合。