11results about How to "Non-destructive" patented technology

The invention relates to a method for producing a pedal device (10) for a drive-by-wire system of a vehicle, in which a pedal part (50) is mounted on a support structure (20) in such a way that first a bearing section (LA) of the pedal part (50) is brought into contact with a bearing region (LB) of a first support part (22) of the support structure (20), and second support part (22) of the support structure (20) is brought into contact with a bearing region (LB) of a second support part (22) of the support structure (20). And subsequently mounting a second support part (24) of the support structure (24) on the first support part (22) in such a way that the bearing section (LA) of the pedal part (50) is loaded towards the bearing region (LB) of the first support part (22). The invention further relates to a pedal device for the drive-by-wire system.

The invention provides a water diversion type cascade series hydropower station group. Each stage of hydropower station comprises a water inlet, a water diversion tunnel, a surge chamber, a branch pipe, a plant, a flow balance discharge hole, an energy dissipation facility, a tailrace tunnel and a regulating reservoir. Wherein the water inlet of the first-stage hydropower station is communicated with a reservoir, and the last-stage hydropower station is connected with a downstream river channel; a flow balance discharge hole is arranged below a plant of each stage of hydropower station, the flow balance discharge hole is connected with the plant in parallel, the upstream of the flow balance discharge hole is separated from a diversion tunnel through a branch pipe, the downstream of the flow balance discharge hole is communicated with a regulating reservoir, the flow balance discharge hole is provided with a valve chamber, a discharge ball valve and a flow regulating valve are mounted in the valve chamber, and an energy dissipation facility is arranged at the downstream of the valve chamber. The water flow stably enters the adjusting tank. On the premise that work of other hydropower station units in the cascade is not affected, the flow can still be normally lowered into a downstream reservoir, and therefore it is guaranteed that power generation of upstream and downstream hydropower stations is not affected.

According to the aerosol ink-jet printing device and the deposition efficiency regulation and control method thereof, the mode that an annular thermal field is additionally arranged on an aerosol ink flow jetting channel is adopted, the density of a gas-liquid phase flow field of an aerosol ink jet printing system is changed, feature distribution of a high Reynolds number flow field is adjusted, and then aerosol ink particles are subjected to axial-radial focusing. Based on heat transfer / distribution, computational fluid mechanics and particle dynamics, respectively establishing a temperature field feature distribution model and an aerosol nano ink particle focusing motion model of the aerosol jet printing system; thermal field distribution characteristics of specific printing ink under specific deposition characteristic requirements are calculated through numerical simulation, and then inline online thermal field input parameters (temperature values and thermal cycle rates) are determined; the inline online thermal field obtained through calculation and analysis is constructed for the aerosol ink flow jetting environment, the longitudinal distribution density of aerosol ink deposition is improved, and finally reliable optimization regulation and control of the deposition efficiency (deposition distribution aspect ratio) of aerosol ink-jet printing are achieved.

The invention belongs to the technical field of non-destructive detection of refractory material products, and discloses a non-destructive detection method for internal structure defects of a refractory material based on radar scanning, which aims at special refractory material products such as cast products with higher density, sintered products with higher volume density and the like, and detects the internal structure defects of the refractory material through linear scanning or regional scanning. The method comprises the following steps: forming a time slice view of which the observation thickness can be randomly adjusted by combining a linear waveform, a two-dimensional map and a migration view, and identifying and judging the types, sizes and positions of defects in the refractory material product by integrating all imaging characteristics and data to form a multi-dimensional data analysis system; quantitative analysis on internal defects such as shrinkage porosity and closed pores of the refractory material is realized; the method is non-destructive, compared with conventional detection means such as infrared rays and X-rays, the method is simpler, more convenient and safer, the accuracy and comprehensiveness of internal structure defect recognition are improved, a reliable non-destructive detection means is provided for quality control of refractory material products, and the method has definite industrial application value.

The invention discloses a 3-3 type piezoelectric ceramic composite material, which comprises piezoelectric ceramic block arrays and a filling phase, cutting gaps among the piezoelectric ceramic block arrays are filled with the filling phase, the piezoelectric ceramic block arrays are completely coated with the filling phase, and the filling phase comprises a polyvinylidene fluoride-based polymer and ionic liquid 1-ethyl-3-methylimidazole bis (trifluoromethylsulfonyl) imide. The invention also discloses a preparation method of the 3-3 type piezoelectric ceramic composite material. The preparation method comprises the following steps: dissolving polyvinylidene fluoride-based polymer powder to obtain a uniform and transparent solution A; adding 1-ethyl-3-methylimidazole bis (trifluoromethylsulfonyl) imide into the solution A, and mixing to obtain a uniform and transparent solution B; the B is dripped on the surfaces of the piezoelectric ceramic block arrays, cutting gaps between the piezoelectric ceramic block arrays are filled, the piezoelectric ceramic block arrays are completely wrapped, curing is conducted after heat treatment, and the 3-3 type piezoelectric ceramic composite material is obtained. The 3-3 type piezoelectric ceramic composite material provided by the invention shows high piezoelectric performance. The preparation method provided by the invention has the advantages of simple process and no destructiveness.

The invention discloses a supramolecular organic polymer and application thereof in adsorption of anionic pollutants, and belongs to the technical field of wastewater adsorption materials. The supramolecular organic polymer is prepared from brominated pillar [5] arene and polyethyleneimine in different molar ratios. The supramolecular organic polymer prepared by the method provided by the invention has very many amino groups, so that the supramolecular organic polymer shows very high electropositivity in water, simultaneously has a large number of adsorption sites, and has a better adsorption effect on anion pollutants, especially iodide ions, azo dyes and the like.

The invention discloses a method for applying a hybrid memory circuit based on a CMOS transistor to online training and reasoning of a neural network, according to the method, a CMOS transistor synaptic device and a CMOS capacitor are adopted to form a synaptic unit to replace a traditional memristor and a ferroelectric capacitor, the writing durability of the CMOS transistor synaptic device is far better than that of the traditional memristor, the reading operation of the CMOS capacitor is non-destructive, and the reliability of the memory circuit is improved. Meanwhile, the whole process is realized based on a standard CMOS (Complementary Metal Oxide Semiconductor) process and is completely compatible with the existing integrated circuit manufacturing process, the hardware mass production cost is reduced, and only the simulation weight is called for operation in the reasoning stage without additional data transmission; an external DAC is not needed in the weight transmission stage, digital-to-analog conversion is achieved through circuit parasitic parameters, and the energy expenditure of edge equipment is greatly reduced.

The invention discloses a method for characterizing a trap time constant causing long-term degradation of a gate oxide layer of a silicon carbide MOSFET, and belongs to the field of electronic device testing. Firstly, a specific grid voltage is applied in a high-temperature environment, so that an interface state trap and a near-interface state trap are fully filled; and then the temperature is kept unchanged, and meanwhile, the grid voltage is increased, so that a deep-energy-level oxide layer trap starts to capture charges. In the process, drain-source voltage is applied at the same time, trapping of electrons by traps can cause change of threshold voltage, and transient drain-source current is gradually reduced. By recording the change curve of the drain-source current along with time, it can be observed that the current drops due to trap filling in the initial stage, and finally the current is gradually stable along with the trap tending to be saturated. According to the invention, the time constant of the device oxide trap is accurately measured, and the influence of other traps of the device on the measurement result is avoided. The method has the advantages of simplicity in operation, high repeatability and high reliability. And the oxide layer trap of the device can be accurately represented in actual work.

The application provides a stress detection-based fiber ring cracking defect detection method, which utilizes distributed Brillouin sensing technology to obtain the strain distribution of the fiber ring along the length direction, compares the stress difference between the healthy state and the current state, identifies the local stress anomaly caused by micro-cracks or structural damage, and realizes early discovery, accurate positioning and risk assessment of the cracking defect. The method has the advantages of non-destructive, high sensitivity, full distribution, quantification and the like, is suitable for quality control and reliability guarantee of high-precision fiber devices, and has important engineering application value.

The invention relates to a guide beam structure with a variable rotating angle and a movable formwork, the guide beam structure is arranged between a main beam (1) and a front auxiliary supporting leg (2), and the guide beam structure comprises a plurality of sections of repeating units which are connected in sequence; each repeating unit is of a frame structure and comprises four I-shaped beams which are arranged up and down and serve as axial stress components. Wherein the repeating unit connected with the main beam is a rotatable unit (3); in the rotatable unit, a first I-shaped beam (31) and a second I-shaped beam (32) on one side in the length direction of the guide beam structure are cut off from the middle, and the cut-off positions on the two sides are connected through a telescopic hydraulic rod (35); the third I-shaped beam (33) and the fourth I-shaped beam (34) on the other side in the length direction of the guide beam structure are cut off from the middle, and the cut-off positions on the two sides are connected in a hinged mode. Compared with the prior art, the continuous change of the corner of the guide beam structure meets the construction requirement of a movable formwork for a curved bridge.