ELECTRONIC BALANCE
    11.
    发明申请
    ELECTRONIC BALANCE 失效
    电子平衡

    公开(公告)号:US20090065264A1

    公开(公告)日:2009-03-12

    申请号:US11912271

    申请日:2006-04-17

    IPC分类号: G01G23/37

    CPC分类号: G01G21/286 G01G23/37

    摘要: To enhance the precision in balancing measurement, an electronic balance is provided. The electronic balance includes a door open/close detection sensor 3 for detecting the open/close of a door 52; a weighing precision setting unit, for setting a weighing precision; a calculation unit, for calculating an average time for balancing measurement that is as short as possible and satisfies the weighing precision or an average number of pieces of data; and a selection unit, for selecting an average time for weight measurement or an average number of pieces of data when the opening of the door 52 is detected by the sensor 3, and selecting an average time of normal measurement or an average number of pieces of data when the closing of the door 52 is detected by the sensor 3, and an averaging process is performed with the average time or the average number of pieces of data that is being selected.

    摘要翻译: 为了提高平衡测量的精度,提供电子天平。 电子天平包括用于检测门52的打开/关闭的门打开/关闭检测传感器3; 称重精度设定单元,用于设定称重精度; 计算单元,用于计算尽可能短的平衡测量的平均时间,并且满足称重精度或平均数据数; 以及选择单元,用于在由传感器3检测到门52的打开时选择平均重量测量时间或平均数据数,并且选择平均正常测量时间或平均次数 当传感器3检测到门52的关闭时的数据,并且利用平均时间或正在选择的平均数据数来执行平均处理。

    Electronic balance having a position control mechanism
    12.
    发明授权
    Electronic balance having a position control mechanism 失效
    具有位置控制机构的电子天平

    公开(公告)号:US07282655B2

    公开(公告)日:2007-10-16

    申请号:US11250847

    申请日:2005-10-14

    IPC分类号: G01G7/00

    CPC分类号: G01G7/045

    摘要: An electronic balance of an electromagnetic force balancing type comprises electromagnetic force generators for applying electromagnetic forces for controlling to move a balance beam in a longitudinal direction (X axis) and a horizontal direction (Y axis) orthogonal thereto, PID controllers for controlling the electromagnetic force generators by a PID control, and a three axes directions position detector for detecting displacements in three directions of X, Y axes directions of the balance beam and a gravitational force direction.

    摘要翻译: 电磁力平衡型的电子天平包括用于施加电磁力的电磁力发生器,用于控制在与其正交的纵向(X轴)和水平方向(Y轴)上移动平衡梁,用于控制电磁力的PID控制器 通过PID控制的发电机和用于检测平衡梁的X,Y轴方向和重力方向的三个方向上的位移的三轴方向位置检测器。

    Electronic balance
    13.
    发明授权

    公开(公告)号:US07145086B2

    公开(公告)日:2006-12-05

    申请号:US11138051

    申请日:2005-05-26

    IPC分类号: G01G21/01

    CPC分类号: G01G21/286

    摘要: A floor portion separates a weighing chamber encircled by a windshield case and accommodating a weighing pan, and a balance body accommodating a load detecting section, an incorporated weight, etc. A plurality of vents is provided through the floor portion. A movable floor is arranged to be able to move back and forth on supporting members. A plurality of vents is provided through the movable floor on the rear side of the floor portion so that number and center position of the vents of the movable floor is the same as the vents of the floor portion. When a temperature difference between the temperatures within the weighing chamber and within the balance body is large, the movable floor is moved to permit airflow between the weighing chamber and the balance body.

    Electronic balance
    14.
    发明申请
    Electronic balance 失效
    电子天平

    公开(公告)号:US20060118343A1

    公开(公告)日:2006-06-08

    申请号:US11250847

    申请日:2005-10-14

    IPC分类号: G01G7/00

    CPC分类号: G01G7/045

    摘要: An electronic balance of an electromagnetic force balancing type comprises electromagnetic force generators for applying electromagnetic forces for controlling to move a balance beam in a longitudinal direction (X axis) and a horizontal direction (Y axis) orthogonal thereto, PID controllers for controlling the electromagnetic force generators by a PID control, and a three axes directions position detector for detecting displacements in three directions of X, Y axes directions of the balance beam and a gravitational force direction.

    摘要翻译: 电磁力平衡型的电子天平包括用于施加电磁力的电磁力发生器,用于控制在与其正交的纵向(X轴)和水平方向(Y轴)上移动平衡梁,用于控制电磁力的PID控制器 通过PID控制的发电机和用于检测平衡梁的X,Y轴方向和重力方向的三个方向上的位移的三轴方向位置检测器。

    Electronic balance
    15.
    发明申请
    Electronic balance 失效
    电子天平

    公开(公告)号:US20050159918A1

    公开(公告)日:2005-07-21

    申请号:US11034610

    申请日:2005-01-13

    IPC分类号: G01G7/04 G01G7/02 G06F15/02

    CPC分类号: G01G7/04

    摘要: In electronic balance, an analog computation portion determines at least a differential control signal according to an amount of displacement of a beam. A digital computation portion determines at least an integral control signal is determined by after the amount of displacement of the beam is digital-converted. The control signal component determined by the digital computation portion is analog-converted. Thereafter, a synthetic PID control signal is determined by being synthesized from a resultant signal and the control signal component, which is determined by the analog computation portion. Subsequently, a coil current based on the synthetic PID control signal is passed through the coil. A weight value is obtained according to the control signal component determined by the digital computation portion.

    摘要翻译: 在电子天平中,模拟计算部根据光束的位移量至少确定差分控制信号。 数字计算部分至少确定在波束的位移量被数字转换之后确定积分控制信号。 由数字计算部分确定的控制信号分量被模拟转换。 此后,通过从由模拟计算部分确定的合成信号和控制信号分量合成来确定合成PID控制信号。 随后,基于合成PID控制信号的线圈电流通过线圈。 根据由数字计算部分确定的控制信号分量获得权重值。

    Electronic balance
    16.
    发明授权
    Electronic balance 失效
    电子天平

    公开(公告)号:US4666005A

    公开(公告)日:1987-05-19

    申请号:US828497

    申请日:1986-02-11

    摘要: An electronic balance devised so that the weighing pan of the balance may settle down fast to make the balance indicate a correct value of measurement quickly without being long disturbed by the air turbulence arising when the door of the weighing pan protecting chamber of the balance is opened and continuing for a while after the door has been closed. This electronic balance is provided witha heater on the base portion of the weighing pan protecting chamber so that the heater is located just below the door of the chamber. The heater generates hot air streams rising upward therefrom along the outer surface of the door. When the door is opened, the air streams play a role of an air curtain to prevent a possible air exchange between the hotter chamber warmed by the electronic circuit of the balance and the cooler surrounding atmosphere.

    摘要翻译: 设计了一种电子天平,使得天平的称重盘可以快速沉降,使得天平快速地显示出正确的测量值,而不会在天平的称重盘保护室的门打开时引起的空气湍流长时间不安 并在门关闭后持续一段时间。 该电子天平在称重盘保护室的基座部分设有加热器,使得加热器位于室的门的正下方。 加热器产生沿着门的外表面向上升起的热气流。 当门打开时,空气流起到气幕的作用,以防止由天平的电子电路加热的较热室与较冷的周围环境之间的可能的空气交换。