Load detecting system and automatic washing machine equipped with the system
    1.
    发明授权
    Load detecting system and automatic washing machine equipped with the system 失效
    负载检测系统和自动洗衣机配备的系统

    公开(公告)号:US07089800B2

    公开(公告)日:2006-08-15

    申请号:US11250552

    申请日:2005-10-17

    IPC分类号: G01B7/16 G01L1/00

    摘要: The invention provides a load detecting system comprising a core (83) of magnetostrictive material, a coil (85) disposed in the vicinity of the core, and a load detecting circuit (10) connected to the coil (85) for detecting the magnitude of a load acting on the core (83). The load detecting circuit (10) comprises an exciting circuit (102) for passing an a.c. detecting current through the coil (85), a pulse current generating circuit (103) for passing through the coil a detection preparing current having a current value greater than the maximum value of the detecting current, a change-over circuit (104) for effecting a change-over between the exciting circuit (102) and the pulse current generating circuit (103) to pass the detecting current through the coil after passing the detection preparing current therethrough, and a microcomputer (100) for deriving the magnitude of the load acting on the magnetostrictive element based on an impedance variation produced in the coil during the period of passage of the detecting current through the coil.

    摘要翻译: 本发明提供了一种负载检测系统,其包括磁致伸缩材料芯(83),设置在芯附近的线圈(85)和连接到线圈(85)的负载检测电路(10),用于检测 作用在芯部(83)上的负载。 负载检测电路(10)包括用于通过交流电流的激励电路(102)。 检测通过线圈(85)的电流;脉冲电流产生电路(103),用于使具有大于检测电流的最大值的电流值的检测准备电流通过线圈;用于实现 激励电路(102)和脉冲电流产生电路(103)之间的转换,使检测准备电流通过之后通过线圈传递检测电流;以及微计算机(100),用于导出负载的大小 基于在检测电流通过线圈的通过期间在线圈中产生的阻抗变化的磁致伸缩元件。

    Load detecting system and automatic washing machine equipped with a system for detecting the magnitude of the load acting on a magnetostrictive element
    2.
    发明授权
    Load detecting system and automatic washing machine equipped with a system for detecting the magnitude of the load acting on a magnetostrictive element 有权
    负载检测系统和自动洗衣机配备有用于检测作用在磁致伸缩元件上的负载的大小的系统

    公开(公告)号:US06983657B1

    公开(公告)日:2006-01-10

    申请号:US10049000

    申请日:2000-08-28

    IPC分类号: G01B7/16 G01L1/00

    摘要: The invention provides a load detecting system comprising a core (83) of magnetostrictive material, a coil (85) disposed in the vicinity of the core, and a load detecting circuit (10) connected to the coil (85) for detecting the magnitude of a load acting on the core (83). The load detecting circuit (10) comprises an exciting circuit (102) for passing an a.c. detecting current through the coil (85), a pulse current generating circuit (103) for passing through the coil a detection preparing current having a current value greater than the maximum value of the detecting current, a change-over circuit (104) for effecting a change-over between the exciting circuit (102) and the pulse current generating circuit (103) to pass the detecting current through the coil after passing the detection preparing current therethrough, and a microcomputer (100) for deriving the magnitude of the load acting on the magnetostrictive element based on an impedance variation produced in the coil during the period of passage of the detecting current through the coil.

    摘要翻译: 本发明提供了一种负载检测系统,其包括磁致伸缩材料芯(83),设置在芯附近的线圈(85)和连接到线圈(85)的负载检测电路(10),用于检测 作用在芯部(83)上的负载。 负载检测电路(10)包括用于通过交流电流的激励电路(102)。 检测通过线圈(85)的电流;脉冲电流产生电路(103),用于使具有大于检测电流的最大值的电流值的检测准备电流通过线圈;用于实现 激励电路(102)和脉冲电流产生电路(103)之间的转换,使检测准备电流通过之后通过线圈传递检测电流;以及微计算机(100),用于导出负载的大小 基于在检测电流通过线圈的通过期间在线圈中产生的阻抗变化的磁致伸缩元件。