Calibration weight arrangement for an electronic balance
    1.
    发明授权
    Calibration weight arrangement for an electronic balance 失效
    电子天平的校准配重

    公开(公告)号:US07631536B2

    公开(公告)日:2009-12-15

    申请号:US11462732

    申请日:2006-08-07

    IPC分类号: G01L25/002

    CPC分类号: G01G23/012

    摘要: The calibration weight arrangement for an electronic balance (1) with a force-measuring cell (6) has a calibration weight (14) which can be coupled to the force-measuring cell (6). A transfer mechanism and a drive source are used to move the calibration weight vertically, in order to establish, as well as to release, the force-transmitting contact between the calibration weight and the force-measuring cell. The transfer mechanism has at least one resetting element (122), a lifting system (110) configured as a knee-joint linkage (117), and a multi-stable positioning element (115). Due to the feedback from the multi-stable positioning element, whose first stable state defines the calibrating position (132) and whose second stable state defines the rest position (133) of the transfer mechanism, the actuator (118) is energized only during the phases when the transfer mechanism is moving.

    摘要翻译: 用于具有力测量单元(6)的电子天平(1)的校准重量装置具有可耦合到力测量单元(6)的校准砝码(14)。 传递机构和驱动源用于垂直移动校准砝码,以便建立并释放校准砝码与力测量单元之间的力传递接触。 转移机构具有至少一个复位元件(122),构造为膝关节连杆(117)的提升系统(110)和多稳定定位元件(115)。 由于来自多稳定定位元件的反馈,其第一稳定状态限定了校准位置(132)并且其第二稳定状态限定了传送机构的静止位置(133),致动器(118)仅在 转移机构移动时的相位。