10results about How to "Improve the coupling effect" patented technology

The utility model discloses a kind of adaptive control circuit of heating body, including MCU temperature control circuit, temperature control circuit, temperature feedback device, current detection circuit, voltage detection circuit, protection detection circuit and temperature display device.The control circuit can automatically identify the heating core type connected, according to the deviation of set temperature and actual temperature output PWM control signal, drive temperature control circuit to carry out temperature rising or cooling adjustment;Temperature, current, voltage are monitored in real time by a variety of detection circuits, and protection mechanism is started under abnormal state, simultaneously, working state is fed back in real time by display device.The control circuit is strong in adaptability, safe and reliable, and is applicable to a variety of heating application scenarios.

The utility model discloses a joint type ultrasonic wave probe device, include: hand held pole, probe, it includes casing, piezoelectric wafer, cable, joint subassembly, it includes a pair of through -hole, its corresponding setting is on the lateral wall of casing, shaft pipe, it is through a pair of through -hole and is set in the casing, filler, it fills around the shaft pipe in the casing, elastic ring, it is the open ring of one end, and the opening of one end of elastic ring's two arms is rotatable and is clamped into two ends of the shaft pipe, the connecting piece is one long strip shape piece body, and one end of connecting piece is connected to the front end of hand held pole, and the other end of connecting piece is connected with the other end of elastic ring and sets up. The utility model provides joint type ultrasonic wave probe device, through hand held pole and sends to the probe of the surface to be detected, through joint subassembly can be adaptive surface to be detected's position and angle, make the detection can be reliably carried out, and then effectively improve the coupling effect of flaw detection contact surface and surface to be detected.

This invention relates to the field of mechanical transmission and friction and wear analysis, and discloses a method, system, medium, and equipment for constructing a dynamic wear model of a wedge-type one-way clutch. The method includes: establishing an analytical model of the dynamic interface force of the wedge, solving for the force and contact area; obtaining the contact pressure distribution, relative sliding velocity, and contact time of the wedge under different working conditions; constructing a wear volume evolution model over time; introducing a wear constitutive equation to establish a quantitative relationship between contact pressure, relative sliding distance, and wear amount; integrating and coupling the wear volume evolution model, the wear constitutive equation, and the dynamic interface force analytical model, correcting the contact friction coefficient and wear coefficient by temperature field factors, and constructing a multi-physics coupling framework; dynamically updating the contact surface geometry based on the wear accumulation results, and recalculating the contact force and wear parameters to form a continuous iterative wear evolution process. This invention can achieve dynamic and continuous prediction of wedge wear, improving the accuracy of wear assessment under complex working conditions.

The present application belongs to the technical field of organic electroluminescent materials, and particularly relates to a polycyclic double-boron nitrogen compound containing indole and an organic electroluminescent device thereof. By introducing a substituent group to an unsaturated five-membered ring derivative structure in an MR-TADF system containing a double-boron atom, a slight distortion of a molecular skeleton is caused and a moderate steric hindrance is introduced. The molecular distortion and the steric hindrance can weaken the intermolecular π-π stacking effect, thereby inhibiting fluorescence concentration quenching and triplet exciton annihilation; at the same time, the molecular distortion can enhance the spin-orbital coupling effect, improve the conversion efficiency from a triplet state to a singlet state, increase the reverse intersystem crossing rate, and thus realize higher exciton utilization efficiency and smaller efficiency roll-off.

The invention relates to a broadband low-phase-noise voltage-controlled oscillator based on a CMOS (Complementary Metal Oxide Semiconductor) process, aiming at solving the problems that the wide tuning and low-phase-noise of the traditional Class-F VCO are difficult to be compatible, the tuning range is narrow and the like. The core architecture comprises four parallel VCO (Voltage Controlled Oscillator) units, a matched buffer and a two-stage alternative selector, each VCO unit is integrated with an exclusive optimized transformer, a multi-bit digital controlled switched capacitor array and a parallel resistor array, and a unilateral tuning design is adopted. The switched capacitor array comprises a coarse tuning unit and a fine tuning unit, and is matched with the overlapping margin of each VCO sub-band to realize seamless connection; the transformer adopts a composite regular octagonal structure, so that the quality factor and the coupling coefficient are improved; the buffer suppresses signal crosstalk, and the selector ensures rapid low-loss switching. According to the scheme, ultra-wide continuous tuning is achieved, the full-band phase noise optimally reaches-131.666 dBc / Hz and 1 MHz, the frequency stepping precision and the signal stability are both considered, and the antenna is suitable for high-frequency and high-requirement scenes such as 5G millimeter wave communication and radar detection.

The application provides an air atmosphere near-infrared laser sinterable oxidation-resistant copper paste and a preparation method thereof, and the main body of the paste is Cu@glass, which comprises a copper core, and a Bi2O3-B2O3-ZnO glass shell layer with a mass fraction of 5%-20% coated outside the copper core, and the particle size of the copper core is 200 nm-500 nm. The copper paste prepared by using the Cu@glass material greatly improves the near-infrared laser absorption efficiency and oxidation resistance of the Cu@glass particles under the coating structure of the glass shell, and the initial oxidation temperature and the near-infrared light absorption rate of the 10% glass-coated Cu@glass particles are 294 DEG C and 61.8% respectively, so that the stable necking and densification of the copper paste under the irradiation of the near-infrared laser are realized under the condition of the air atmosphere, and a copper conductor film layer with conductivity is obtained.

The application discloses a bionic flapping-wing aircraft. The bionic flapping-wing aircraft comprises a fuselage, wings, a flapping mechanism, an extension mechanism and a power source. The wings are rotatably installed on the two sides of the fuselage, the flapping mechanism is installed on the fuselage and is in transmission connection with the wings, the flapping mechanism is used for driving the wings to flap, the extension mechanism is installed on the fuselage and is in transmission connection with the wings, the extension mechanism is used for driving the wings to extend and retract, and the power source is used for simultaneously providing power to the flapping mechanism and the extension mechanism. The bionic flapping-wing aircraft adopts a single power source to simultaneously drive the flapping mechanism and the extension mechanism, so that the flapping and the extension of the wings can be simultaneously performed, the coupling of the flapping and the extension is improved, the flapping mechanism and the extension mechanism are independent of each other and are directly connected to the power source, and the two do not need to be assembled with each other, so that the structural complexity of the aircraft is reduced.

The application discloses a split type deep body temperature monitoring device, a preparation method and application, and belongs to the technical field of temperature monitoring. The monitoring device is prepared from biodegradable materials and comprises a double-layer electrode layer, a spacing layer, a connecting channel, a dielectric layer and a packaging layer. Each of the upper and lower electrode layers comprises a spiral inductance coil, a serpentine connecting wire and a capacitor plate. The spiral inductance coils are arranged on the two sides of the spacing layer and have opposite rotation directions, and are connected in series through the connecting channel to enhance mutual inductance. The serpentine connecting wire is used for connecting the spiral inductance coil and the capacitor plate, and improves mechanical flexibility. The application adopts a split type design, better realizes deep body temperature monitoring, and significantly improves a wireless reading distance and a Q value in cooperation with series-connected double-layer asymmetric coils, so that the accuracy of deep body temperature monitoring is comprehensively improved. Moreover, the sensor is made of fully biodegradable materials, secondary surgery for removal is avoided, and has a good biomedical application prospect.

The application provides a ground stress and microseismic integrated monitoring device and system, wherein the device comprises: a pipe body, a grouting channel is formed in the pipe body; a stress monitoring assembly is sleeved on the pipe body, and a cavity is formed between the stress monitoring assembly and the pipe body; a microseismic monitoring assembly is sleeved on the pipe body; a cable connecting assembly is sleeved on the pipe body, and the stress monitoring assembly and the microseismic monitoring assembly are connected to the cable connecting assembly; wherein the stress monitoring assembly is located between the microseismic monitoring assembly and the cable connecting assembly. In actual use, the device can perform stress monitoring and microseismic monitoring on the rock mass based on the same borehole, reduces the number of openings during monitoring, reduces the monitoring cost, improves the consistency of the monitoring positions of the stress monitoring assembly and the microseismic monitoring assembly, improves the coupling between the stress information and the microseismic information, weakens the influence of the monitoring position difference between the microseismic monitoring assembly and the stress monitoring assembly on the analysis accuracy, and enhances the monitoring and early warning capability of the engineering site.

The application relates to the technical field of multi-modal target detection, in particular to a multi-modal interactive target detection method and system based on soft fusion supplement and a readable storage medium. Multi-modal features are extracted by using a double-flow backbone network, a soft fusion supplement multi-scale interactive module is added after each layer of feature extraction, the soft fusion supplement multi-scale interactive module comprises a cross-modal soft fusion module and two multi-scale exchange gate modules; the cross-modal feature soft fusion module is used to form fusion features, to supplement missing modal information for the two branches and to increase the coupling of the cross-modal features; the double-branch features after the supplement are adaptively enhanced in a significant area through the multi-scale interactive gate module; the fusion timing of the last layer of the improved feature extraction is further improved to further improve the global alignment of the cross-modal under deep semantic, so that the problem that the anti-interference ability is weak when the difference between the two branches is large and one branch is invalid is avoided. The application aims to solve the problems of how to inhibit noise in hierarchical transmission and how to reduce the interaction ability due to feature loss.