Abstract: The present disclosure provides a magnetic element and a method for manufacturing same. The method includes: forming a first metal wiring layer on a surface of at least one segment of a magnetic core; forming a first metal protection layer on the first metal wiring layer; removing a portion of the first metal protection layer with a direct writing technique to expose a portion of the first metal wiring layer; and etching the exposed first metal wiring layer in such a manner that the first metal wiring layer forms at least one first pattern to function as a winding, where at least one turn of the first pattern surrounds the magnetic core. The magnetic element and the method for manufacturing the magnetic element provided in the present disclosure can improve space utilization of the magnetic element.

Abstract: The present disclosure discloses a method for automatically identifying south troughs by improved Laplace and relates to the technical field of meteorology. The method includes the following steps: acquiring grid data of a geopotential height field; calculating a gradient field of the geopotential height field in an x direction; searching for a turning point where a gradient value turned from being negative to being positive, and cleaning the gradient field; calculating a divergence of the x direction to obtain an improved Laplacian numerical value L?; performing 0,1 binarization processing on the L? to obtain a black-and-white image and a plurality of targets of potential troughs, merging the black-and-white image and the plurality of targets of the potential troughs by expansion, recovering original scale through erosion, and selecting an effective target through an angle of direction of a contour and an axial ratio.

Abstract: A loading and unloading device of solid state disk test system is used for picking and placing solid state disks at a test position. The device includes a sorting and feeding device and a transfer device including a transfer mechanism and an insert and extract robot. A loading and unloading position is located at the side of the sorting and feeding device away from the transfer device. The sorting and feeding device transfers the solid state disk to be tested from the loading and unloading position to a side close to the transfer device, and transfers the tested solid state disk back. The transfer mechanism drives the insert and extract robot to move relative to the test position to insert the solid state disk to be tested into the test position, which pulls out the tested solid state disk to transfer to the transfer device.

Abstract: A loading and unloading device of solid state disk test system is used for picking and placing solid state disks at a test position. The device includes a sorting and feeding device and a transfer device including a transfer mechanism and an insert and extract robot. A loading and unloading position is located at the side of the sorting and feeding device away from the transfer device. The sorting and feeding device transfers the solid state disk to be tested from the loading and unloading position to a side close to the transfer device, and transfers the tested solid state disk back. The transfer mechanism drives the insert and extract robot to move relative to the test position to insert the solid state disk to be tested into the test position, which pulls out the tested solid state disk to transfer to the transfer device.

Abstract: The present application discloses a control method and a control device for parallel inverters. The method comprises: receiving a feedback signal Vmg reflecting load voltage and a voltage reference signal Vref to generate a command signal Pset reflecting active power and a command signal Qset reflecting reactive power; taking the command signal Pset reflecting active power as the first offset of an active power-output voltage frequency curve (P-F) of an inverter unit, and taking the command signal Qset reflecting reactive power as the second offset of an reactive power-output voltage amplitude curve (Q-V) of the inverter unit; transversely translating the curve (P-F) of the inverter unit according to the first offset, transversely translating the curve (Q-V) of the inverter unit according to the second offset, and adjusting the load voltage of the inverter system by means of adjusted output voltage frequency and output voltage amplitude of the inverter unit.

Abstract: The present application discloses a control method and a control device for parallel inverters. The method comprises: receiving a feedback signal Vmg reflecting load voltage and a voltage reference signal Vref to generate a command signal Pset reflecting active power and a command signal Qset reflecting reactive power; taking the command signal Pset reflecting active power as the first offset of an active power-output voltage frequency curve (P-F) of an inverter unit, and taking the command signal Qset reflecting reactive power as the second offset of an reactive power-output voltage amplitude curve (Q-V) of the inverter unit; transversely translating the curve (P-F) of the inverter unit according to the first offset, transversely translating the curve (Q-V) of the inverter unit according to the second offset, and adjusting the load voltage of the inverter system by means of adjusted output voltage frequency and output voltage amplitude of the inverter unit.