6results about How to "Meet miniaturization" patented technology

The invention discloses a high-dielectric low-loss dielectric material for a high-voltage ceramic capacitor, and relates to the technical field of dielectric materials, which comprises the following steps: S1, preparing bismuth stannate; step S2, preparation of bismuth titanate; step S3, preparation of barium zirconate; step S4, compression molding and sintering; and S5, printing an electrode. The high-dielectric low-loss dielectric material for the high-voltage ceramic capacitor is high in dielectric constant and low in dielectric loss, and meets N4700 temperature characteristics and environmental protection requirements.

The invention provides a reference source and a satellite communication system.The reference source comprises an atomic clock, a first phase-locked loop, a low-frequency crystal oscillator, a frequency doubling filter circuit, a second phase-locked loop, a high-frequency crystal oscillator and an output device.A miniaturized design scheme is adopted, an ultra-thin rubidium clock, a constant-temperature crystal oscillator and an ultra-low phase noise crystal oscillator are arranged in the reference source; the system has the characteristics of small size and low cost, meets the application requirements of a miniaturized or highly integrated scene, and has a wide prospect; the multi-stage frequency synthesis technology is adopted, so that the output reference signal has the characteristics of high speed, stability and low phase noise, the requirements of the fields of time-frequency measurement, radar detection and the like on the reference source are met, and the application range is wide.

The application belongs to the technical field of medical devices, and discloses a modular surgical robot, which comprises a continuum, an actuator and a first driving mechanism, the continuum comprises a body and a first interface assembly, the first interface assembly comprises a first connecting shaft; the actuator comprises an execution assembly, a transmission assembly and a second interface assembly, the first interface assembly and the second interface assembly are detachably connected; the second interface assembly comprises a second connecting shaft, the second connecting shaft and the first connecting shaft are docked and circumferentially limited, the transmission assembly connects the execution assembly and the second connecting shaft; the first driving mechanism comprises a first flexible shaft and a first driving assembly, the first flexible shaft is arranged in the body, connects the first driving assembly and the first connecting shaft, and the first driving assembly drives the first flexible shaft to move and rotate; the first flexible shaft moves and drives the body to bend; the first flexible shaft rotates and drives the first connecting shaft and the second connecting shaft to rotate, the second connecting shaft drives the execution assembly to move through the transmission assembly, and the requirement of quickly replacing the actuator is met.

This application provides an optical component and its assembly method. By fixing a third lens portion with its optical axis as a reference, the positions of the first and second lens portions are simultaneously adjusted. Based on the sensitivity of the optical lenses, the first lens portion, with higher sensitivity, is first fixed to the housing of the driving device. Then, the position of the second optical lens portion, with lower sensitivity, is adjusted. Finally, after the second lens portion can clearly image the image, it is fixed to the focusing carrier of the driving device, thus forming the optical component described in this application. This assembly method simplifies the assembly process while ensuring the accuracy of the assembled optical component.

The application provides a contact assembly, a change-over switch and a power distribution device, and relates to the technical field of low-voltage electrical apparatuses. The contact assembly comprises a mounting shell, a driving member, a normally-used static contact, a backup static contact, a neutral pole moving contact and phase pole moving contacts; the driving member, the normally-used static contact, the backup static contact, the neutral pole moving contact and the phase pole moving contacts are arranged in the mounting shell; the driving member is connected with the phase pole moving contacts and the neutral pole moving contact, and is used for synchronously and reversely moving the phase pole moving contacts and the neutral pole moving contact, so that the phase pole moving contacts are in contact with the normally-used static contact or the backup static contact, and the neutral pole moving contact is in contact with the normally-used static contact and the backup static contact when the phase pole moving contacts are separated from the normally-used static contact and the backup static contact, thereby eliminating the safety hazard caused by the zero line being empty, and the contact assembly has the advantages of simple structure, few components, reliable action, large contact opening distance and the like, and can meet the design requirements of product miniaturization and modularization.

The invention discloses an optical system, a pick-up lens and an electronic device, and aims to realize lightening and thinning and shorter total length of the optical system and improve the pixel and imaging quality of the optical system. The optical system sequentially comprises a diaphragm, a first lens with positive focal power, a second lens with negative focal power, a third lens with focal power, a fourth lens with focal power, a fifth lens with focal power, a sixth lens with positive focal power and a seventh lens with negative focal power from an object side to an image side along an optical axis, the object side surface of the first lens, the object side surface of the second lens, the image side surface of the third lens, the image side surface of the fifth lens and the object side surface of the sixth lens are convex surfaces in a paraxial region. The image side surface of the first lens, the image side surface of the second lens, the object side surface of the third lens, the object side surface of the fifth lens, the image side surface of the sixth lens, and the object side surface and the image side surface of the seventh lens are concave surfaces at a paraxial region. The optical system satisfies the relational expression: 1.45 lt; fNOlt, FNOlt; 1.9, 79 degree lt; a FOVlt; the angle is 91 degrees, 1.2 lt; and TTL / ImgHlt; and 1.4.