Abstract: Method and apparatus for calibrating a surface density measurement device are provided, and relate to the field of battery testing devices. The apparatus for calibrating the surface density measurement device calibration apparatus includes a mounting bracket, a standard member, and an adjusting member. The mounting bracket is configured for mounting the surface density measurement device. The standard member includes multiple standard zones with different densities. The adjusting member connects the standard member and the mounting bracket, and the adjusting member is configured to adjust positions of the multiple standard zones such that the multiple standard zones move one by one to a testing position of the surface density measurement device. The standard member is used instead of an electrode plate for calibrating the surface density measurement device, which reduces the production time of the electrode plate, and improves the calibration efficiency of the surface density measurement device.

Abstract: A collimator includes a shield plate configured to variably shield incident rays projected onto the collimator and a driving mechanism configured to drive the shield plate to adjust a shape of a radiating surface of outputting rays penetrating the collimator.

Abstract: An optoelectronic computing system includes a first semiconductor die having a photonic integrated circuit (PIC) and a second semiconductor die having an electronic integrated circuit (EIC). The PIC includes optical waveguides, in which input values are encoded on respective optical signals carried by the optical waveguides. The PIC includes an optical copying distribution network having optical splitters. The PIC includes an array of optoelectronic circuitry sections, each receiving an optical wave from one of the output ports of the optical copying distribution network, and each optoelectronic circuitry section includes: at least one photodetector detecting at least one optical wave from the optoelectronic operation. The EIC includes electrical input ports receiving respective electrical values.

Abstract: A locking method and a related device are provided. The method is applied to an electronic device, where the electronic device includes a processor and a locking control circuit, and the locking control circuit is capable of running when the electronic device is in a power-off state or a power-on state. The method includes: modifying, by the locking control circuit, a state flag to a first state flag when the electronic device needs to be locked, where the first state flag is used to indicate a state that the electronic device needs to be locked and is not locked; controlling, by the locking control circuit, the electronic device to restart; reading, by the processor, the state flag in a startup phase of the electronic device restart; and locking the electronic device when the processor determines that the state flag is the first state flag.

Abstract: The present disclosure relates to pressure-sensitive detection apparatus. One example apparatus includes a pressure sensor array located in a touch display screen. One half-bridge circuit is constituted in each row of the pressure sensor array. When there is a touch input signal on the touch display screen, a first half-bridge circuit and a second half-bridge circuit corresponding to a touch location of the touch input signal output signals. A deformation amount generated when pressure is applied to a first pressure sensor component in the first half-bridge circuit is less than a deformation amount generated when the pressure is applied to a second pressure sensor component in the first half-bridge circuit, and a deformation amount generated when the pressure is applied to a first pressure sensor component in the second half-bridge circuit is greater than a deformation amount generated when the pressure is applied to a second pressure sensor component in the second half-bridge circuit.

Abstract: A food container is provided, including a box body, a cover and a locking buckle, wherein the cover is buckled above the box body; an outer edge of the box body encloses an outer edge of the cover, and the outer edge of the box body is provided with a segment of notch, the notch exposes a part of the outer edge of the cover; and the locking buckle is composed of a seal strip and a pull-tab portion, wherein the seal strip is arranged in the notch, and is connected to a break face formed by the box body at the notch through a plurality of connecting bridges, and the pull-tab portion is arranged at an outer side of the seal strip and connected to the seal strip. The food container is easy to open and can ensure the sealing performance.

Abstract: Provided is a food container which includes a box body with an opening and a box cover; the box body includes a box bottom and a box wall; a top edge of the box wall extends toward the outer side of the box body to form a first connecting strip; the first connecting strip is provided with a groove in the middle; the box cover includes a cover plate and a side wall; a top edge of the side wall extends toward the outer side of the box cover to form a second connecting strip; the middle of the second connecting strip protrudes to form a convex rib; when the box cover covers the opening of the box body, the convex rib of the box cover is embedded into the groove of the box body to form a seal structure. The food container is good at sealing performance.

Abstract: The present invention relates to a lunch box, including a base and a lid, wherein the lid is disposed on the base and snap-fitted with it, and by which the base and the lid form a storage cavity there-between, and at least one movable sheet is provided on the lid by cutting, and a pit is defined by the lid and an outer edge of the movable sheet. A flange is provided on the lid surrounding the movable sheet. One end of the movable sheet is closely connected with the lid and a foldable hinge is formed at the junction. The movable sheet can bend up and down with the foldable hinge as its axis. Compared with the prior art, the movable sheet is provided on the top of the lid. When air emission is needed, external force can be exerted to the movable sheet, undermining the original connecting structure to produce a vent hole between the movable sheet and the lid. This vent hole can circulate the inside air and the outside air and prevent from the backflow phenomenon when heating food.

Abstract: The present disclosure relates to pressure-sensitive detection apparatus. One example apparatus includes a pressure sensor array located in a touch display screen. One half-bridge circuit is constituted in each row of the pressure sensor array. When there is a touch input signal on the touch display screen, a first half-bridge circuit and a second half-bridge circuit corresponding to a touch location of the touch input signal output signals. A deformation amount generated when pressure is applied to a first pressure sensor component in the first half-bridge circuit is less than a deformation amount generated when the pressure is applied to a second pressure sensor component in the first half-bridge circuit, and a deformation amount generated when the pressure is applied to a first pressure sensor component in the second half-bridge circuit is greater than a deformation amount generated when the pressure is applied to a second pressure sensor component in the second half-bridge circuit.