METHODS, COMPUTER PROGRAMS, DEVICES, AND ENCODERS FOR SIGNAL ERROR CORRECTION

    公开(公告)号:US20190238161A1

    公开(公告)日:2019-08-01

    申请号:US16261145

    申请日:2019-01-29

    申请人: LEINE & LINDE AB

    IPC分类号: H03M13/31 G11B20/18

    摘要: A method for signal error correction of a position signal relating to a relative position of at least one sensor with respect to a reference, includes determining a set of parameter values of a parameterized approximation of a corrected relative position with respect to time based on measurements of the position signal over a duration of at least one period of a periodic signal error of the position signal. The method further includes estimating a first corrected relative position at a first time based on the parameterized approximation using the determined set of parameter values and the first time.

    Rotary encoder and method for determining malfunction of a rotary encoder

    公开(公告)号:US11519764B2

    公开(公告)日:2022-12-06

    申请号:US17188240

    申请日:2021-03-01

    申请人: LEINE & LINDE AB

    发明人: Mats Gustafsson

    IPC分类号: G01D18/00 G01D5/04 G08B21/18

    摘要: A rotary encoder includes a detection device for detecting malfunction of the rotary encoder, a rotor, a stator, a shaft having a bearing configuration, and an axial bushing internally connected to the bearing configuration and rotatably arranged in a housing of the rotary encoder. A spring device is arranged for pre-stressing the bushing and the bearing configuration. A distancing arrangement is arranged to change an axial distance between the rotor and the stator by rotation of the bushing resulting from malfunction of the bearing configuration and by creating increased distance between the rotor and stator. The increased distance is sufficient to reduce detectability of angular positions of the shaft, as detected by the rotary encoder, to a level below a predetermined threshold.

    Sensor Head for an Encoder
    6.
    发明申请
    Sensor Head for an Encoder 有权
    编码器的传感器头

    公开(公告)号:US20130293222A1

    公开(公告)日:2013-11-07

    申请号:US13887902

    申请日:2013-05-06

    申请人: LEINE & LINDE AB

    IPC分类号: G01B7/14

    CPC分类号: G01B7/14 G01D5/34715

    摘要: A sensor head for an encoder assembly includes a housing and at least two detectors. The sensor head is intended for scanning directly toward a rotatable encoding member positioned on a carrier ring. The carrier ring is intended to be installed on a shaft of a machine. The detectors are arranged on detector strips are displaceably attached to the housing.

    摘要翻译: 用于编码器组件的传感器头包括外壳和至少两个检测器。 传感器头用于直接扫描位于载体环上的可旋转编码构件。 承载环旨在安装在机器的轴上。 检测器布置在检测器条上,可移动地附接到壳体。

    ROTARY ENCODER AND A METHOD FOR MONITORING OPERATION OF THE ROTARY ENCODER

    公开(公告)号:US20230243719A1

    公开(公告)日:2023-08-03

    申请号:US18100774

    申请日:2023-01-24

    申请人: LEINE & LINDE AB

    IPC分类号: G01M13/04 G01L1/22 G01B21/22

    摘要: A rotary encoder includes a stator and a shaft having a bearing configuration arranged in a housing. The shaft is rotatable relative to the housing via the bearing arrangement, and a rotor is attached to the shaft. A strain sensor arrangement, attached to the housing, is adapted to determine a malfunction of the bearing configuration. The housing has a flexible structure that facilitates transmitting forces associated with the bearing configuration to the strain sensor arrangement. The strain sensor arrangement is adapted to detect tension and/or compression associated with the housing, and a malfunction of the bearing configuration is determined based on the detected tension and/or compression.

    Adaptive installation rotary encoder

    公开(公告)号:US11316418B2

    公开(公告)日:2022-04-26

    申请号:US16825255

    申请日:2020-03-20

    申请人: LEINE & LINDE AB

    发明人: Richard Arnstein

    摘要: A rotary encoder includes a rotor and a stator. The rotor and the stator are arranged in the rotary encoder such that, when the rotary encoder is arranged on a machine that includes a shaft having a rotation axis, a rotation of the rotor in relation to the stator about the rotation axis of the shaft is allowed, a relative movement between the rotor and the stator along the rotation axis of the shaft is restricted to a predetermined distance, and a movement of the rotor in relation to the shaft along the rotation axis of the shaft is allowed. Additionally, movement of the stator in relation to the machine along the rotation axis of the shaft may be allowed.