38results about How to "Avoid mechanical vibration" patented technology

A full automatic atmospheric polarization mode image acquisition system and a system control method are characterized in that the system comprises a polarization imaging module, a mechanical movement module, a brightness acquisition module and a system control and processing center; and the system control and processing center respectively controls the rotation angle of a base and the lift height of a worm in the mechanical movement module through a controller and records and processes the light intensity information acquired by a light intensity detector and the polarization image of sky area acquired by the polarization imaging module in a CCD camera. The invention has simple operation, accurate measurement result which is easy to calibrate, and does not need to mechanically rotate a polaroid sheet in the measurement process.

The invention discloses a laser display system and a laser display method based on electro-optical deflection speckle suppression. The system comprises a laser device for generating laser, a polarizer for generating linear polarization light in a specific polarization direction, an electro-optical deflector for deflecting light beams through electro-optical modulation, a long-focal-length focusing lens for focusing the light beams, a scatter plate for scattering the focused light beam and further reducing the coherence of light fields, a dodging module which consists of a micro lens array, a light flux pipe and a focusing lens and is used for collecting the scattered light fields and shaping the light, a linear space light modulator for generating an image and a projection lens component for projecting the image on a screen. The laser display system is simple, controllable, high in stability, low in loss and free of mechanical motion and has a stable structure, and high-quality laser display is realized.

The invention provides a circular-screen camera system, comprising: conical reflector having continuous mirror surface and placed upside-down on a column; multiple cameras, distributed on the side surfaces of the column according to their camera views which are overlapped mutually; the cameras shoot up; each camera is located on the central axis of the conical reflector through the virtual image formed by the conical reflector. And it creatively uses the conical reflector in the circular-screen camera system to make image collection, able to make the pictures collected by the adjacent cameras have certain overlapped regions, thus able to assure being able to make fusion treatment on adjacent images by computer so as to form a circular-screen panoramic picture.

A method to adjust the back pressure applied to an exhaust of a gas turbine, the method including: exhausting hot combustion gas from the gas turbine; passing the hot combustion gas through a heat recovery steam generator; actuating an exhaust gas damper in the stream of the hot combustion gases, wherein actuation moves the exhaust gas damper to a restricted position, and while in the restricted position, the exhaust damper creates a backpressure applied to the exhaust gas, wherein the backpressure reduces an exhaust gas velocity at an exhaust of the gas turbine.

The invention discloses an exposure system and an exposure method used for semiconductor lithography. A micro reflector array is arranged between a light-homogenizing unit and a reflector to replace a conventional variable slit apparatus; parameters of an exposure field of view are set according to mask plate patterns and exposure precision in exposure, and the parameters are input to driving software of the micro reflector array; the movement parameters of the micro reflector array in exposure are calculated; in exposure, a control board card continuously transmits an instruction to each digital micromirror in the micro reflector according to data in the driving software; and each digital micromirror performs a corresponding turnover action after the instruction is received at each moment until exposure is finished. The micro reflector array adopted by the exposure system and the exposure method comprises tens of thousands of digital micro mirrors which can change exposure field of view, range and dosage in real time, so that the mechanical vibration generated by the conventional variable slit apparatus in changing slit shapes and high acceleration speed requirement of the driving system of the variable slit apparatus are avoided; and therefore, the complexity of the mechanical structure and the control system of the exposure system is lowered.

A sub-cranial vibratory stimulator that at least partially bypasses a recipient's skull bone and delivers vibration to fluid within a recipient's skull bone. The sub-cranial vibratory stimulator comprises an actuator that is configured to be implanted beneath a recipient's skull bone. The actuator transfers vibration to the fluid within the recipient's skull without first passing through the skull bone. The actuator is also substantially mechanically decoupled (isolated) from the recipient's skull bone.

The invention relates to an inductance coil, particularly an inductance coil without iron core for use in electric power grids, comprising at least two cylindrical winding layers (1), which are disposed concentrically with respect to a coil center line (7) and are connected electrically in parallel. The inductance coil comprises at least one means for reducing or minimizing sound emissions developing during operation of the inductance coil. At least the outermost winding layer (1) is designed as a current-conducting, acoustic shield winding (18) with respect to the winding layer (1) adjoining in the direction of the center line (7), wherein the shield winding (18) is dimensioned electrically such that it is designed for the transmission of a current intensity which is between the 0.1% to the maximum 50% of the current intensity transmitted by the adjacent winding layer (1) towards to the direction of the coil center line (7). The invention further relates to a clamp-like retaining element disposed on at least one face end of the inductance coil for reducing sound emissions.

The invention discloses a center deviation measuring device based on a liquid lens. The device comprises a mechanical adjustment module, an optical measurement module combined with the mechanical adjustment module, and a main control computer. The main control computer is electrically connected with the mechanical adjustment module and the optical measurement module; a to-be-measured optical lensis placed on the mechanical adjustment module, the optical measurement module comprises two liquid lenses, the focal length is changed by changing the shapes of the liquid lenses, and the mechanical adjustment module moves in the vertical direction, so that the measurement range of a to-be-measured optical lens in a confocal mode is not limited, and the measurement precision is improved. The invention further discloses a center deviation measuring method based on the liquid lens, the focal length of the liquid lenses is changed, the mechanical adjusting module is matched for adjustment, the center deviation is calculated through the main control computer, operation is easy and convenient, and the measuring result is accurate.

The utility model relates to an inversion auxiliary equipment equipped with a screw-type slide table, which belongs to the field of body-building equipment. It is composed of a support, a driving device, a clamping device and a control system. The driving device is composed of an AC servo motor, a semi-closed screw slide table, and a beam. The clamping device is composed of a clip groove and a rubber pad. Two parallel semi-closed screw-type slides are placed on the bracket. When people stand upside down, they lie flat on the base, with their feet upright, and put their ankles on the rubber pads in the foot slots. Good parameter automatic control or real-time manipulation of the hand-held operation box, thereby pulling people's feet to make them balance upside down.

The invention discloses a convenient-to-assemble efficient heat-dissipating bus duct, which comprises two groups of shells, wherein the two groups of shells are bilaterally symmetrically arranged; adjustment mechanisms are arranged at the end parts of the shells; two groups of adjustment mechanisms are connected through a first clamping mechanism; and the first clamping mechanism is fixed througha locking mechanism. According to the convenient-to-assemble efficient heat-dissipating bus duct, the mounting freedom of the shells is adjusted through the adjustment mechanisms, so that the convenient-to-assemble efficient heat-dissipating bus duct is good in flexibility and convenient to meet different mounting requirements, can meet different temperature drops and the telescoping requirement caused by thermal expansion and cold contraction and also can compensate an error caused by foundation settlement; two groups of shells are assembled through the first clamping mechanism, so that the convenient-to-assemble efficient heat-dissipating bus duct is convenient to mount and remove and the assembly efficiency is greatly improved; and the first clamping mechanism is fixed through the locking mechanism, so that connection positions of two groups of bus ducts are prevented from being loosened and the use safety of the bus duct is ensured.

The invention discloses an air conditioner shell, which comprises a shell body (1) and an air conditioner panel (2) arranged on one side of the shell body, a rubber shock absorbing pad (3) is arranged under the shell body, and the air conditioner panel There is an air inlet grille (4) and an air outlet grille (5), a biological air purification diaphragm (6) is provided on one side of the air inlet grille, an adjustment rod (7) is provided on the air outlet grille, and the air outlet grille A temperature sensor (8) is provided on the grille, a high-temperature-resistant heat-insulating coating (9) is provided on the outer wall of the shell body, an anti-oxidation layer (10) is provided on the outside of the high-temperature-resistant heat-insulation coating, and an anti-oxidation layer is provided on one side of the anti-oxidation layer. There is a photocatalyst layer (11). The invention adopts the shell of the air conditioner, which can avoid the mechanical vibration of the shell of the air conditioner. Under the action of visible light, the photocatalyst layer can produce a strong catalytic degradation function, effectively degrade harmful gases in the air, and kill various bacteria, so that it can self- Clean and sanitize.

The invention relates to a method for determining the transmission mechanism backlash (40) of a transmission mechanism (24) which is coupled to an electric machine (12) of a vehicle which has at least one electric machine (12). According to the method, at least the following steps are carried out: a) detecting the rotational speed of the at least one electric machine (12) during a driving intervention (80) and detecting rotational speed fluctuations produced therefrom; b) evaluating a high-frequency vibration (60) which is generated as a result of the transmission mechanism (24) reaching a lower stop (54) in delay phases (56) and reaching an upper stop (50) when reversing the rotational direction in acceleration phases (58); c) filtering out high-frequency components from the high-frequency vibration (60) according to step b), wherein position information (42), relating to a corresponding rotational angle, from the rotational speed signal is saved in the event the components occur; and d) evaluating the distance between the upper stop (52) and the lower stop (54) and measuring the transmission mechanism backlash (40) from the difference of the position information (42) between the upper stop (52) and the lower stop (54).

The invention relates to a small lifting film coating device and belongs to the technical field of a film coating device. Mainly, a circular loop is formed by a film coating container, a film coating container cover with an inlet, a valve, a liquid storage bottle and a mechanical pump through pipelines; the bottom of the liquid storage bottle is provided with a water outlet; the water outlet at the bottom of the liquid storage bottle is communicated with the film coating container by the mechanical pump through the inlet of the film coating container cover with the inlet; the bottom of the film coating container is provided with a liquid outlet; the outlet of the film coating container is connected with the liquid storage bottle; and the valve is arranged between the film coating container and the liquid storage bottle. The device has a simple structure, utilizes a liquid level free descending manner to replace a conventional substrate lifting or film coating container descending manner, can avoid mechanical vibration and is low in cost.

The invention relates to the technical field of spindle boxes, in particular to a waterproof spindle box for a machine tool. The waterproof spindle box for the machine tool comprises a box body, wherein a spindle cavity is formed in the box body; a spindle is mounted in the spindle cavity; a manhole is formed in the top surface of the box body; grooves are symmetrically formed in the two sides ofthe manhole and are through grooves; a top cover is arranged above the manhole; first baffles are arranged on the two sides of the top cover, and the inner walls of the first baffles are attached to the outer wall of the box body; second baffles are arranged on the two sides of the top cover and located in the grooves; an oil throwing disc is arranged on the spindle; a horizontal rod is horizontally and glidingly connected onto the wall of the manhole; a first spring is fixed between the horizontal rod and the side wall of the manhole; wedged bars are fixed on the outer periphery of the oil throwing disc; a sponge brush is stuck on the top surface of the horizontal rod. According to the scheme, the problem that water can permeate into the box body in the prior art is solved, water is prevented from being subjected to electrochemical reactions with mechanisms such as the spindle and the like, so that corrosion to the spindle due to water is avoided, and the service life of the mechanisms such as the spindle and the like is prolonged.

An aircraft nacelle component for use in an aircraft nacelle of an aircraft includes a component having at least one parameterized surface. A flexible OLED display assembly is adhered to the at leastone parameterized surface of the component and closely fits the curvature of the at least one parameterized surface. The flexible OLED display assembly includes a printed electronic product layer, andan OLED array deposited on the printed electronic product layer.