Abstract: This specification discloses methods, apparatus, devices, and systems for sending payment pages based on aggregation codes. In one implementation, a method includes: receiving code information obtained by the terminal device from scanning an aggregation code, obtaining a standard payment page corresponding to the code information, where the standard payment page comprises page information generated by the first server based on a historical payment page, and where the historical payment page is provided by a second server for the target aggregation code, and sending the standard payment page to the terminal device.

Abstract: A real-time fluorescence RT-PCR detection method and a kit for a novel coronavirus 2019-nCoV. Specifically, the present invention relates to a kit and a method for detecting the nucleic acid of an E gene of the novel coronavirus 2019-nCoV. The kit and the method have extremely high sensitivity and specificity, and can significantly improve the accuracy of virus identification.

Abstract: The present application relates to the producing field of honeycomb cores, and provides an aluminum honeycomb core production method and device, the method comprises: a gumming step: gumming adhesive to aluminum foil layers and then bond the aluminum foil layers to form a double/multi-layer aluminum foil; a pre-gumming step: gumming adhesive to the surface of the double/multi-layer aluminum foil; a cutting step: cutting the double/multi-layer aluminum foil; and a bonding step: bonding a plurality of the aluminum foil strips; and the apparatus is used to produce the aluminum honeycomb core according to the above method; the method can improve the structural strength and of the honeycomb core by applying aluminum foil to the honeycomb, and the apparatus can increase the production efficiency and the product quality of the aluminum honeycomb core.

Abstract: A broad-pole type square-wave three-phase brushless permanent magnet direct current motor and an assembling method thereof are disclosed. The number of magnetic poles on a rotor core is: 2P=4. The number of slots in a stator core is: Z=6. Six teeth on the stator are composed of three large teeth and three small teeth. The sum of mechanical angels of one large tooth and one small tooth is 120 degree. Electrical angles corresponding to the mechanical angles are: P* 120=240° . Three-phase concentrated windings are wound on three large teeth separately, and only one winding is arranged at each phase. The advantages of the motor are low positioning torque, simple structure, effective production cost, convenient to wind the windings, and low copper loss, etc.

Abstract: A broad-pole type square-wave three-phase brushless permanent magnet direct current motor and an assembling method thereof are disclosed. The number of magnetic poles on a rotor core is: 2P=4. The number of slots in a stator core is: Z=6. Six teeth on the stator are composed of three large teeth and three small teeth. The sum of mechanical angles of one large tooth and one small tooth is 120 degree. Electrical angles corresponding to the mechanical angles are: P*120=240°. Three-phase concentrated windings are wound on three large teeth separately, and only one winding is arranged at each phase. The advantages of the motor are low positioning torque, simple structure, effective production cost, convenient to wind the windings, and low copper loss, etc.

Abstract: A hall rotary transformer comprises a rotary transformer stator (1), linear Hall components (3), a PCB (4) and a permanent magnet magnetic ring (5). A ring shape soft iron core (2) is installed on the PCB (4). Plural grooves (8) are uniformly distributed inside the peripheral surface of the ring shape soft iron core (2) and have the same number as the linear Hall components (3). Every linear Hall component (3) is installed in its corresponding groove (8) and soldered on the PCB (4). The magnetic sensitive surface of each linear Hall component (3) is aligned with the magnetic pole surface of the permanent magnet magnetic ring (5) each other. A Hall rotation angle encoder is made of the Hall rotary transformer.

Abstract: A hall rotary transformer comprises a rotary transformer stator (1), linear Hall components (3), a PCB (4) and a permanent magnet magnetic ring (5). A ring shape soft iron core (2) is installed on the PCB (4). Plural grooves (8) are uniformly distributed inside the peripheral surface of the ring shape soft iron core (2) and have the same number as the linear Hall components (3). Every linear Hall component (3) is installed in its corresponding groove (8) and soldered on the PCB (4). The magnetic sensitive surface of each linear Hall component (3) is aligned with the magnetic pole surface of the permanent magnet magnetic ring (5) each other. A Hall rotation angle encoder is made of the Hall rotary transformer.