Measurement, calibration and compensation system and method for machine tool

    公开(公告)号:US10189133B2

    公开(公告)日:2019-01-29

    申请号:US15388496

    申请日:2016-12-22

    Abstract: A measurement, calibration and compensation system for machine tool includes a first positioning base; two first speckle image sensors for sensing speckle positions of an object holding unit at a first XY plane and a first XZ plane of the first positioning base before and after the machine tool is started for machining; a second positioning base; two second speckle image sensors for sensing speckle positions of a cutter holding unit at a second XY plane and a second YZ plane of the second positioning base before and after the machine tool is started for machining. Thus, the thermal expansion at all axes of the machine tool can be measured in a simplified and low-cost way, and the absolute positioning coordinates of all axes of the machine tool can be calibrated in real time to avoid reduced positioning accuracy due to the thermal expansion of the multi-axis machine tool.

    HIGH-POWER FIBER CLADDING POWER STRIPPER
    43.
    发明申请

    公开(公告)号:US20180294616A1

    公开(公告)日:2018-10-11

    申请号:US15479652

    申请日:2017-04-05

    Abstract: A high-power fiber cladding power stripper comprises a core unit, a cladding layer, a grating structure, and a jacket. The core unit is an optical conductive material. The cladding layer is disposed outside the core unit, wherein a refractive index of the cladding layer is lower than that of the core unit. The grating structure, disposed outside the cladding layer, is for producing diffraction effects. The jacket surrounds and protects the core unit, the cladding layer, and the grating structure. Hence, in a high-power fiber laser system, the cladding power stripper can be utilized for removing residual pump energy before the laser light entering an output collimator.

    Battery active balancing system
    47.
    发明授权

    公开(公告)号:US10063070B2

    公开(公告)日:2018-08-28

    申请号:US15361321

    申请日:2016-11-25

    Abstract: A battery active-balancing system comprises an external balancing power; a buck converter having a first side-winding and a second side-winding induced thereby, the first side-winding and the second side-winding each having a positive terminal and a negative terminal; a battery comprising series-connected cell-units each having a positive terminal and a negative terminal; a cell voltage-sensing unit coupled to the battery to sense a voltage of each cell unit of the series-connected cell-units; a main switch component coupled to the first side-winding and the battery in an ON state, or coupled to the first side-winding and the external balancing power in an OFF state; a cell-switch unit comprising first cell-switch components and second cell-switch components, wherein each of the first cell-switch components is coupled to the positive terminal of corresponding one cell-unit and the positive terminal of the second side-winding, and each of the second cell-switch components is coupled to the negative terminal of corresponding one cell-unit and the negative terminal of the second side-winding; and a microcontroller for controlling the main switch component and the cell-switch unit, and determining a voltage level fed back from the cell voltage-sensing unit.

Patent Agency Ranking