3results about How to "Expand collection range" patented technology

The utility model belongs to generator technical field, concretely is a kind of efficient integrated semiconductor thermoelectric generator. The integrated semiconductor thermoelectric generator includes thermoelectric conversion module, is equipped with heat absorption component on thermoelectric conversion module, and the bottom of thermoelectric conversion module is equipped with heat dissipation component. Thermoelectric conversion module includes upper ceramic substrate, first metal connecting piece, thermoelectric generation unit, second metal connecting piece and lower ceramic substrate connected in turn by magnesium-based material layer;The two sides of second metal connecting piece are respectively connected with positive guide line and negative guide line. The utility model innovatively integrates magnesium-based thermoelectric material system, graphene composite heat absorption coating and cubic boron nitride heat dissipation framework, and combines the nanowire / quantum dot superlattice structure on the surface of ceramic substrate, cooperates the optimized doping of P-type / N-type thermocouple arm, realizes thermoelectric merit figure≥1.8 in low temperature area, reduces material cost and improves system reliability simultaneously.

The invention relates to the technical field of fluid mechanics experimental equipment, discloses a rotary fluid test platform and method for a rotary table, and aims to solve the problems of incapability of synchronously measuring a velocity field and a concentration field, difficulty in multi-section measurement, insufficient platform stability and optical distortion interference in the prior art. The platform comprises a rotating system, a fluid mixing system, a fluid testing system and a control and data processing system, the fluid testing system integrates PIV and PLIF technologies, multiple sections are irradiated through beam splitting laser, multiple cameras synchronously collect signals, the fluid mixing system adopts a refractive index matching solution to eliminate wall surface refraction, and the rotating system has an inclination angle adjusting function. According to the invention, multi-field synchronous measurement and wide-area multi-section test are realized, the measurement precision and stability are improved, and the device is suitable for accurate measurement of parameters such as speed and concentration under various rotating fluid working conditions, and is suitable for rotating fluid research in the fields of aerospace and the like.

This utility model relates to the field of moss variety screening technology, specifically to an intelligent moss variety screening device based on machine vision. It includes a sealed box and a monitoring box. The bottom of the sealed box has a sealing cylinder, and the bottom of the sealing cylinder has a suction cup. The sealed box contains a lifting mechanism, and a sealing plug is provided between the output end of the lifting mechanism and the sealing cylinder. The top of the sealed box has an adjustment box with a heat dissipation mechanism. The device is fixed using a suction cup, utilizing air pressure difference to achieve a firm adhesion between the device and the placement surface, simplifying the installation process and making it convenient and quick. Through a rotating mechanism and bearing seat, the monitoring box can rotate around a specific axis, thereby adjusting the camera's shooting angle and greatly expanding the image acquisition range. This helps to comprehensively cover all moss samples within the target area, ensuring the acquisition of high-quality image data.