Apparatus for Detecting Speed Of Movable Body And Drive Stage Using The Same
    11.
    发明申请
    Apparatus for Detecting Speed Of Movable Body And Drive Stage Using The Same 失效
    用于检测移动体和驱动台的速度的装置

    公开(公告)号:US20090040504A1

    公开(公告)日:2009-02-12

    申请号:US11816819

    申请日:2005-11-25

    IPC分类号: G01P3/36

    摘要: A movable-body-speed-detecting apparatus includes a movable body capable of moving linearly and/or circularly, a plate fixed to the movable body, the plate having a predetermined length in a direction in which the movable body moves, and light emission/reception means arranged such that light output from a light-emitting element enters a light-receiving element. The plate has a window section that passes between the light-emitting element and the light-receiving element in accordance with movement of the movable body and that blocks or allows passage of light to the light-receiving element. The apparatus further comprises speed calculation means for calculating the speed of the movable body by converting the amount of light received by the light-receiving element into a signal and measuring the signal.

    摘要翻译: 可移动体速度检测装置包括能够直线和/或圆形移动的移动体,固定到可移动体的板,在可移动体移动的方向上具有预定长度的板,以及发光/ 接收装置被布置成使得从发光元件输出的光进入光接收元件。 该板具有根据可移动体的运动而在发光元件和光接收元件之间通过并阻挡或允许光通过光接收元件的窗口部分。 该装置还包括速度计算装置,用于通过将由光接收元件接收的光量转换成信号并测量信号来计算可移动体的速度。

    Vibration type force detector
    12.
    发明授权
    Vibration type force detector 失效
    振动式力检测器

    公开(公告)号:US4955240A

    公开(公告)日:1990-09-11

    申请号:US412428

    申请日:1989-09-26

    申请人: Akira Komoto

    发明人: Akira Komoto

    IPC分类号: G01L1/10

    CPC分类号: G01L1/10 Y10S73/01

    摘要: A vibration type force detector comprising: a string to which a force to be measured is applied in the direction in which the string is tensioned; a driver for causing the string to vibrate at its natural frequency and simultaneously producing a series of pulses at a frequency in synchronism with the vibration of the string; a gate to which the series of pulses are applied; a counter for counting the series of pulses that have passed through the gate; means for providing a gating time determined in accordance with the result of the counting of the counter; and a controller for controlling the gate in accordance with the gating time. The gating time providing means is so arranged that as the vibration frequency of the string increases, the gating time lengthens.

    Electronic balance
    13.
    发明授权

    公开(公告)号:US4932486A

    公开(公告)日:1990-06-12

    申请号:US368850

    申请日:1989-06-20

    IPC分类号: G01G23/01

    CPC分类号: G01G23/012

    摘要: This invention provides an electronic balance comprising a housing; weighing means enclosed in the housing; a pan on which an object to be weighed is placed and having a space under the top plate thereof; a sensing member having one end connected to the weighing means and projecting out of the housing top wall, with the other end of the sensing member being connected to and supporting the pan outside the housing; a calibration weight arranged in the space under the pan; and operating means for loading and unloading the calibration weight on and from the sensing member. There are disclosed a variety of constructions of the operating means.

    A-D Converter for use in an electronic balance
    14.
    发明授权
    A-D Converter for use in an electronic balance 失效
    A-D转换器用于电子天平

    公开(公告)号:US4511883A

    公开(公告)日:1985-04-16

    申请号:US402582

    申请日:1982-07-28

    申请人: Akira Komoto

    发明人: Akira Komoto

    摘要: An A-D converter for use in an electronic balance including an A-D converting unit, a pulse-modulating D-A converting unit, a digital memory, a digital adder, an analog subtracter and means for generating a signal whose level corresponds to an integral multiple of the overflow level of said A-D converting unit. The converter has a distinct feature in its rapid response to the input signal variations within a predetermined range in spite of high-resolving and large converting capacity.

    摘要翻译: 一种用于电子天平的AD转换器,包括AD转换单元,脉冲调制DA转换单元,数字存储器,数字加法器,模拟减法器和用于产生其电平对应于溢出的整数倍的信号的装置 所述AD转换单元的电平。 尽管高分辨率和大的转换能力,该转换器在对预定范围内的输入信号变化的快速响应方面具有明显的特征。

    Electronic counting scale
    15.
    发明授权
    Electronic counting scale 失效
    电子计数秤

    公开(公告)号:US4493384A

    公开(公告)日:1985-01-15

    申请号:US479338

    申请日:1983-03-28

    IPC分类号: G01G19/42 G01G19/00 G01G19/22

    CPC分类号: G01G19/42

    摘要: There is disclosed an electronic counting scale provided with means for calculating a maximum addable number of items to be added to an already counted known number of items with an error being eliminated from the counted number of a total items including the added items, said means calculating the maximum addable number on the basis of the standard variation of an average weight estimated from the samples taken from the entire population of the items to be counted.

    摘要翻译: 公开了一种电子计价秤,其具有用于计算要添加到已经计数的已知数量的项目的最大可添加数量的装置的装置,其中从包括添加项目的总计数的计数的数量中消除了错误,所述装置计算 基于从要计数的项目的整个群体获取的样本估计的平均重量的标准变化的最大可加数。

    Electronic balance
    17.
    发明授权
    Electronic balance 失效
    电子天平

    公开(公告)号:US4375838A

    公开(公告)日:1983-03-08

    申请号:US283534

    申请日:1981-07-15

    IPC分类号: G01G7/04 G01G23/01

    摘要: An electronic balance includes a weighing means for producing digital output signals as a measured value in response to a force induced upon a tray, a first memory for storing the mass of a reference weight, a discriminator for signalizing the existence and non-existence of an object on the tray, a second memory for storing a corrected value obtained by differentiating between a measured value of the reference weight and the mass stored in the first memory when the discriminator signalizes that no object is placed on the tray, an arithmetic unit for correcting a measured value signalized by the weighing means in accordance with the corrected value stored in the second memory when the discriminator signalizes that an object exists on the tray, and an output unit for permitting of visual inspection of the arithmetic results obtained by the arithmetic unit.

    摘要翻译: 电子天平包括称重装置,用于响应于在托盘上引起的力产生作为测量值的数字输出信号,用于存储参考重量的质量的第一存储器,用于指示存在和不存在的鉴别器 物体,托盘上的第二存储器,用于存储当鉴别器指示没有物体放置在托盘上时,基准权重的测量值和存储在第一存储器中的质量的差分获得的校正值的第二存储器,用于校正 当鉴别器指示对象存在于托盘上时,由称重装置根据存储在第二存储器中的校正值信号的测量值以及用于允许目视检查由算术单元获得的算术结果的输出单元。

    Electronic balance
    18.
    发明授权
    Electronic balance 失效
    电子天平

    公开(公告)号:US4372406A

    公开(公告)日:1983-02-08

    申请号:US258512

    申请日:1981-04-28

    IPC分类号: G01G7/04 G01G7/02

    CPC分类号: G01G7/045

    摘要: An electronic balance includes a system in which a current supplied to a force coil in response to a load applied to the balance is caused to alternate in direction at such a time interval as to permit of no oscillations and in which the measured value is obtained by subtracting the product of the current in the negative direction and a time fraction t.sub.2 for which the same flows from the product of the current in the positive direction and a time fraction t.sub.1 for which the same flows, the sum of said time fractions t.sub.1 and t.sub.2 being equal to each of said time intervals.

    摘要翻译: 电子天平包括一种系统,其中响应于施加到天平的负载而提供给力线圈的电流被引导在方向上以不允许振荡的时间间隔交替,并且其中测量值通过 从负方向减去电流的乘积和从正方向的电流的乘积和相同流动的时间分数t1相同的时间分数t2,所述时间分数t1和t2的和 等于每个所述时间间隔。

    Apparatus for detecting speed of movable body and drive stage using the same
    19.
    发明授权
    Apparatus for detecting speed of movable body and drive stage using the same 失效
    用于检测移动体的速度的装置和使用其的驱动台

    公开(公告)号:US07710549B2

    公开(公告)日:2010-05-04

    申请号:US11816819

    申请日:2005-11-25

    IPC分类号: G01P3/36 G01C21/10

    摘要: A movable-body-speed-detecting apparatus includes a movable body capable of moving linearly and/or circularly, a plate fixed to the movable body, the plate having a predetermined length in a direction in which the movable body moves, and light emission/reception means arranged such that light output from a light-emitting element enters a light-receiving element. The plate has a window section that passes between the light-emitting element and the light-receiving element in accordance with movement of the movable body and that blocks or allows passage of light to the light-receiving element. The apparatus further comprises speed calculation means for calculating the speed of the movable body by converting the amount of light received by the light-receiving element into a signal and measuring the signal.

    摘要翻译: 可移动体速度检测装置包括能够直线和/或圆形移动的移动体,固定到可移动体的板,在可移动体移动的方向上具有预定长度的板,以及发光/ 接收装置被布置成使得从发光元件输出的光进入光接收元件。 该板具有根据可移动体的运动而在发光元件和光接收元件之间通过并阻挡或允许光通过光接收元件的窗口部分。 该装置还包括速度计算装置,用于通过将由光接收元件接收的光量转换成信号并测量信号来计算可移动体的速度。

    Top scale balance
    20.
    发明授权
    Top scale balance 失效
    顶级平衡

    公开(公告)号:US5962818A

    公开(公告)日:1999-10-05

    申请号:US538776

    申请日:1995-10-03

    CPC分类号: G01G21/244

    摘要: In a top scale balance which has a Roberval's chain 10 and a load weight transmitting lever 30 and in which a movable post 13 of the Roberval's chain 10 is connected to a point of force 32 of the lever 30 through an elastic connection fulcrum 51, a horizontal member 12 nearer to the elastic connection fulcrum 51, out of upper and lower horizontal members 11, 12 of the Roberval's chain 10, is greater in rigidity than the other horizontal member 11. Alternately, the upper and lower horizontal members 11, 12 are equal in rigidity and the elastic connection fulcrum 51 is positioned, in the vertical direction, at the center between the upper and lower horizontal members 11, 12. Such an arrangement prevents or reduces the movement of the elastic connection fulcrum 51 in the back-and-forth direction due to an offset placed load. Thus, even though the top scale balance is made in a compact and thin design with the lever ratio increased, the top scale balance is high in precision with a less offset position error.

    摘要翻译: 在具有罗伯瓦尔链条10和负载重量传递杆30的顶部秤平衡中,罗伯瓦尔链条10的可动柱13通过弹性连接支点51连接到杠杆30的力点32, 在Roberval链条10的上部和下部水平部件11,12之间更靠近弹性连接支点51的水平部件12的刚度比其他水平部件11的刚度大。或者,上部和下部水平部件11,12 刚性相等,并且弹性连接支点51在垂直方向上位于上下水平构件11,12之间的中心。这种布置防止或减小了弹性连接支点51在背部和背面中的运动 由于偏移放置负载的方向。 因此,尽管最大尺寸的平衡是以杠杆比率增加的紧凑而薄的设计进行的,但是由于偏移位置误差较小,所以顶部秤的精度高。