5results about How to "Effective deformation" patented technology

The application discloses a non-orthogonal transducer array three-dimensional ultrasonic wind speed and direction instrument which can be carried on a unmanned aerial vehicle and applied to the field of wind speed and direction instruments, and the non-orthogonal transducer array is adopted to reduce the influence of turbulence on wind measurement accuracy; when the turbulence degree generated by one group of transducers is relatively large, the other two groups of transducers can compensate the data, so that high-precision wind speed and direction measurement is realized; meanwhile, when the unmanned aerial vehicle encounters strong wind, the probe fixing rod will be broken, so that the unmanned aerial vehicle is prevented from losing control due to the large wind area of the orthogonal annular support, and the fixed base plate and the elastic thin rod are arranged to recycle the broken and fallen orthogonal annular support and ultrasonic probe, so that the high-altitude falling object is not easy to form, and the orthogonal annular support and the ultrasonic probe are effectively protected, the subsequent recycling and reuse of the orthogonal annular support and the ultrasonic probe are facilitated, and the wind direction and speed detection in strong convection weather such as strong wind is applicable.

The invention relates to the technical field of coal mine construction, and discloses a protection device for coal seam extraction, which is characterized in that the protection device is arranged on the inner side of the bending part of the L-shaped pipe, and the filtering part comprises a gear ring rotationally connected in the L-shaped pipe and a filter screen fixedly connected to the inner ring of the gear ring and used for intercepting solid particles; the stirring rods are fixedly connected to the outer ring surface of the gear ring at equal intervals and face the incoming flow direction of fluid. Through the arrangement of the L-shaped pipe and the scraping plates, when fluid is input, the flow speed of the fluid is effectively reduced, meanwhile, guiding flowing of the fluid is provided, a better sedimentation environment is provided for the fluid, gas density is low, and gas floats upwards, meanwhile, when the filter screen rotates, the low-position scraping plate generates a scraping effect on the filter screen, and the high-position scraping plate generates effective deformation on the filter screen; and the particles attached in the holes can further fall off, and the fallen particles always fall to an upstream large-particle-size area, so that the degree of abrasion of coarse coal to a subsequent conveying pump body is reduced while effective separation is realized.

The utility model discloses a reinforced well cementation casing centralizer tool, the main body structure adopts the seamless steel pipe of spring steel, after cutting, the integral main body structure of further processing is formed after the integral processing, the upper sleeve and the lower sleeve of accommodating and sleeving in casing are located in the upper and lower both ends, and the multiple centralizing ribs of longitudinal arrangement between the upper sleeve and the lower sleeve and in the middle part, multiple centralizing ribs are arranged on the outer peripheral surface of upper sleeve and lower sleeve along the circumferential direction of upper sleeve and lower sleeve and are integrally formed connection with upper sleeve and lower sleeve, and the centralizing rib is outwardly inclined from the upper and lower both ends to the axis of casing, and a stress groove is arranged in the middle position of each centralizing rib to increase the reset force after deformation, and the fluid flow channel is formed between the adjacent two centralizing ribs, and the brush is fixed on the outside of upper sleeve and lower sleeve, and the brush is in contact with the well wall to destroy and remove the well wall mud cake. The application can ensure that the casing can smoothly enter the well, and improve the well cementation quality.

The invention discloses a three-gradient microstructure flexible pressure sensor and a preparation method and application thereof, and aims to provide a sensor which is clear in structural design and can realize wide linear range, high sensitivity and high stability, a preparation method of the sensor, and application of the sensor in micro-pressure signal detection and plant physiological monitoring. The sensor comprises a sensing layer, an electrode layer and a hollow supporting layer, the sensing layer comprises an elastomer substrate with a three-gradient microstructure and a conductive film layer covering the surface of the three-gradient microstructure; the elastomer substrate is prepared by the following steps: spin-coating a flexible precursor solution on the surface of a mold, carrying out vacuum defoaming, heating and curing, and stripping to obtain the elastomer substrate with a three-gradient convex structure; the flexible precursor solution is composed of a polydimethylsiloxane solution and a single-layer MXene dispersion liquid; and the mass content of the MXene in the elastomer solid matrix is 2.5%-8%. The sensor is excellent in comprehensive sensing performance and has high stability and reliability.

The utility model belongs to the technical field of medicine manufacturing, and particularly relates to an auxiliary device for monitoring temperature change in a product sterilization process. The auxiliary device comprises a main cylinder, an observation cover and an end cover, the main cylinder is made of a corrosion-resistant metal material, a sealing body used for inserting a temperature detection probe in a sealing mode is arranged on the end cover, and the end cover and the observation cover with the perspective performance are arranged at the two ends of the main cylinder in a sealing mode respectively. According to the technical scheme, the main cylinder can be heated and cooled together with a product, and a stable temperature field is provided for a temperature sensor for monitoring the temperature of the product in the whole sterilization process. The main cylinder can provide a stable temperature field and can be used repeatedly. Therefore, the problems of non-uniform temperature distribution and poor stability of the reference bottle / reference bag in application are solved, the situation of leakage caused by damage is avoided, and the auxiliary device can be used for sterilizing products with different volumes and has relatively good flexibility and applicability.