55 results about "Penetration length" patented technology

The present invention generally relates to an automatic lancing device for withdrawing a blood sample, comprising a pushing member positioned at a back end of a body and a rotatable cap combined with a front end of the body for regulating the combination length of the body and the ejection length of a lancet, thereby obtaining a blood sample exactly at a desired position without misoperation and adjusting the penetration length of lancet according to depth of the skin.

An optical modulator module includes an optical modulator including an optical waveguide which conducts an inputted optical signal, and m modulator regions on the optical waveguide; and m discrete driving circuits serially connected to one another. The discrete driving circuits include a driving circuit which outputs a signal obtained from a digital input signal with a synchronization signal to one of the modulator regions, and a phase shifting circuit which outputs a signal resulting from giving a delay to a signal branched from the synchronization signal. A discrete driving circuit receives the signal outputted from the phase shifting circuit. Each of the modulator regions includes modulation electrodes, an electric field caused by a modulation electric signal applied to each of the modulation electrodes penetrates by a penetration length d, and every two adjacent modulation electrodes has a distance L_gap given by L_gap=2d.

The invention discloses a time temperature indicator and a manufacturing method thereof. The time temperature indicator comprises a substrate layer, a bonding layer, an indication layer, a phase-change material and a blocking layer, wherein part of the indication layer forms a convex hull, and the convex hull is provided with a storage room; the indication layer comprises at least two interlayers and a sandwich layer arranged between the two interlayers, the interlayer between the sandwich layer and the bonding layer is a dense film layer, a notch passing through the sandwich layer is arranged on the dense film layer, and a liquid channel is communicated between the storage room and the notch; the phase-change material is located in the storage room, and the blocking layer is arranged between the phase-change material and the notch; and the liquid phase-change material can press the blocking layer broken under effects of an external force to enter the liquid channel and be penetrated in the sandwich layer through the notch, and the penetration length to the time length of the liquid phase-change material on the sandwich layer is in direct proportion. Due to the time temperature indicator of the invention, the liquid phase-change material can be prevented from passing through the interlayers to be penetrated in the sandwich layer.

The present technique provides for the spectral calibration of the detector elements of a CT detector using one or more offset calibration phantoms. The offset phantoms provide greater coverage of the detector elements as well as spectral response data associated with penetration lengths ranging in length from a minimum chord of the phantom to the diameter of the phantom. The spectral response as a function of penetration length can be obtained for each detector element by comparing the fitting of each projection view to the corresponding measured projection view over all view angles. The fitting information may then be employed to derive the coefficients of the spectral response curve for each detector element, which may in turn be employed to provide rapid correction of the spectral response for each element.

An apparatus and a method for measuring gap width, displacement shift or relative position between two subjects using surface plasmon resonance (SPR) are disclosed. First, a TM mode light beam is provided, so as to generate SPR on a surface of one of the two subjects. Then, the signal of the reflective light or penetrative light on the surface is measured. Because SPR is sensitive to the changes of the gap, displacement shift or relative position when the width of the gap is equal to or smaller than twice the penetration length of the surface plasmon wave, the gap, displacement shift and relative position can be acquired by sensing changes of the signal. Accordingly, the width of the gap, displacement shift, relative position and surface roughness smaller than twice the penetration length or even less than 10 nm can be measured.

A method and apparatus are disclosed for inducing a supercavitating flow inside a fuel injection nozzle orifice to reduce the penetration length of the fuel spray, maintain high levels of fuel atomization, and improve uniformity of the fuel spray exiting the nozzle such that high-pressure injectors can be used on small engines. This reduction in penetration length is accomplished without any reduction in upstream fuel pressure.

The invention discloses a spraying characteristic analysis device and an analysis method based on the device. Key parameters for quantitatively evaluating the spraying condition of an SCR injection system can be accurately tested, and efficiency is high. The device comprises the SCR injection system, a laser emitter, a laser receiver, a camera and processors, wherein the processors include a signal processor and an image processor; laser emitted by the laser emitter is received by the laser receiver after being subjected to spraying of urea injected by a nozzle penetrating the SCR injection system; the signal processor is connected with the laser receiver and used for acquiring laser signals received by the laser receiver and processing the laser signals, and the urea spraying particle diameter and the distribution condition of the urea spraying particle diameter are acquired; the camera is connected with the image processor and used for acquiring urea spraying images at different time moments and transmitting the images to the image processor; the image processor is used for processing the images and acquiring the urea spraying penetration length and taper angle.

The invention discloses a non-excavation type laying construction method of a large-pipe-diameter pipeline of a heat supply network. The method comprises the steps that drilling machine equipment is selected, the pull strength of a selected horizontal directional drilling machine needs to meet the requirement of the directional drilling penetration length, the pull strength is larger than or equalt 3*(the friction resistance generated by the pipeline in a hole and the viscous comprehensive friction resistance of the pipeline in the hole), 3 times of the safety coefficient is taken, and mud preparing, guide hole drilling, hole pre-expanding, pipe penetration treatment and pulling back are carried out. Compared with the pipe jacking construction manner, the method has the following advantages that long-distance uninterrupted penetration construction of the pipeline can be met, and the construction speed is high; destroy to the ground environment can be reduced, and the requirement of environment protection can be met; the method is not disturbed by uncertain factors such as the soil property, underground water and underground hidden pipelines, the procedures of work well construction and work pipe penetration are omitted, and time is saved; and long-distance welding and heat preservation can be carried out on the work pipe on the ground, the penetration depth is large, and the risk such as water penetration and pipe floating during river penetration is avoided.

A fluid-filled vibration damping device including an elastic buffer body supported by a partition member and arranged in a housing space such that at least one of wall inner surfaces of the housing space on sides of a pressure-receiving chamber and an equilibrium chamber is covered by the elastic buffer body. Windows are formed to penetrate the elastic buffer body at portions corresponding to communication holes formed in walls of the housing space so that the communication holes are narrowed by the windows of the elastic buffer body, and a ratio (a/l) of an opening area (a) of the windows to a penetration length (l) thereof is made smaller than a ratio (A/L) of an opening area (A) of the communication holes to a penetration length (L) thereof.

A removable anchoring device designed to be inserted in a hole drilled in a wall, and designed to support a mechanical load, including a female body provided with a radially expandable front area designed to be inserted in the hole and with a rear stop designed to be outside the hole, a male body slidingly engaged in the female body including an expansion head at its front end, the male body including a rear stop designed to be outside the hole, a flexible compression part fitted in compression between the stop of the female body and the stop of the male body in order to bias the male body and the female body in the direction of engagement of the expansion head in the radially expandable area, the male body presenting a stop part determining a penetration length into the drilled hole.

A main surface of a silicon carbide substrate is inclined by an off angle in an off direction from {0001} plane of a hexagonal crystal. The main surface has such a characteristic that, among emitting regions emitting photoluminescent light having a wavelength exceeding 650 nm of the main surface caused by excitation light having higher energy than band-gap of the hexagonal silicon carbide, the number of those having a dimension of at most 15 μm in a direction perpendicular to the off direction and a dimension in a direction parallel to the off direction not larger than a value obtained by dividing penetration length of the excitation light in the hexagonal silicon carbide by a tangent of the off angle is at most 1×10⁴ per 1 cm². Accordingly, reverse leakage current can be reduced.

The invention discloses a non-excavation internal PE pipeline penetration restoration method. The method comprises the following specific steps that early-stage exploration is performed; a working pitis excavated, and a to-be-restored pipeline is cleaned; an experiment PE pipeline is pulled to penetrate through the to-be-restored pipeline, and whether the damage degree of the experiment PE pipeline meets a standard or not is observed; the PE pipeline is pulled to enter the to-be-restored pipeline, wherein the PE pipeline is composed of a plurality of PE pipeline segments, the tail end of eachfront PE pipeline segment is welded to the front end of a corresponding rear PE pipeline segment, and pulling is performed again after cooling and pipeline pressure testing are completed; pressure testing is performed on the pipeline segments one by one, every two pipeline segments are connected, and a pipeline penetrates through the pipeline segments for pressure testing; and after reinforcing treatment is completed, working pit backfilling is performed. According to the non-excavation internal PE pipeline penetration restoration method adopting the above structure, the to-be-restored pipe does not need to bear pressure, no potential safety hazard exists, the single-time pipeline penetration length is increased and can reach 1500 meters, the excavation area is greatly decreased, and influences on transportation and production are less.

The invention discloses a hydrostatic test device for testing cable cores of submarine optical cables. The hydrostatic test device comprises a cylinder, T-shaped cover plates and plugs. The two ends of the cylinder are open, the T-shaped cover plates cover the two ends of the cylinder and are fixed through fasteners, and the plugs are located in countersunk holes in the T-shaped cover plates and are fixed through fasteners. Each plug is of a through hole structure for cable cores of submarine optical cables to penetrate in. A high-pressure water inlet pipeline and a drain pipeline are welded to the outer surface of the cylinder, the high-pressure water inlet pipeline is connected with a booster pump, and the drain pipeline is connected with a ball valve. The hydrostatic test device is reasonable in structural design, good in sealing performance, easy and convenient to operate, capable of being repeatedly and safely used and capable of testing cable cores of multiple submarine optical cables at the same time; besides, a hydrostatic test and a water penetration length test can be carried out at the same time, so that working efficiency is greatly improved, and testing time is shortened.

The invention relates to a low-voltage heavy-current ultracrystalline high-frequency transformer which comprises an ultracrystalline magnetic core provided with a magnetic core inner ring, wherein the four corners of two glass silk plates are connected by bolts to clamp and fix the ultracrystalline magnetic core; a first aluminum profile column and a second aluminum profile column are arranged in the magnetic core inner ring, and isolated in an insulating manner; the upper end and the lower end of the first aluminum profile column penetrate out of the two glass silk plates respectively; the penetration length of the upper end is greater than that of the lower end; the upper end and the lower end of the second aluminum profile column penetrate out of the two glass silk plates respectively; the penetration length of the lower end is greater than that of the upper end; the lower end of the first aluminum profile column is connected with a first manifold plate; and the upper end of the second aluminum profile column is connected with a second manifold plate. According to the low-voltage heavy-current ultracrystalline high-frequency transformer, the magnetic core adopts an ultracrystalline soft magnetic material and can be simply fixed by the bolts by utilizing insulating materials; water-cooling heat dissipation or air-cooling heat dissipation can be performed; and the transformer is simple and compact in structure, high in integration degree, convenient to assemble, low in failure rate and low in cost, and is suitable for mass production.

A threshold voltage model with an impurity concentration profile in a channel direction taken into account is provided in the pocket implant MOSFET. With penetration length of the implanted pocket in the channel direction and the maximum impurity concentration of the implant pocket used as physical parameters, the threshold voltage model is obtained by linearly approximating the profile in the channel direction. By analytically solving the model by using a new threshold condition with inhomogeneous profile taken into account, the threshold voltage can be accurately obtained. Based on thus obtained model, the threshold voltage can be predicted and can be used for circuit design.

The invention discloses a conductive device, which comprises an insulating base and a conductive connecting rod, wherein a first groove is formed in the upper end part of the insulating base; a conductive copper bar is arranged in the groove; an opening which is communicated with the groove is formed in the lower end part of the insulating base; a second groove is formed in the center position of the lower end part of the conductive copper bar along the axial direction; one end of the conductive connecting rod passes through the opening and enters the second groove to contact the conductive copper bar; and a compression spring is arranged on the conductive connecting rod between the lower end part of the conductive copper bar and the bottom part of the first groove. Acting force is applied to the conductive copper bar through the compression spring; the condition that the conductive copper bar is in contact with the lower surface of a tooling through elastic action even if the upper end surface of the conductive copper bar is abraded is ensured when the conductive copper bar is in contact with the tooling; and the service lifetime of the conductive device can be further prolonged by adjusting the penetration length of a conductive bolt under the condition of relatively large abrasion of the conductive copper bar.

The invention discloses a non-destructive inspection method and a hammer of a non-destructive inspection apparatus for analyzing and determining underground pile penetration length. The hammer of a non-destructive inspection apparatus comprises a steel main body for impacting, a handle connected with the steel main body and a strain sheet for applying impact force. The non-destructive inspection method comprises steps: a digging step for forming an inserting space portion, a cylindrical pipe inserting step for putting the cylindrical pipe into the inserting space portion, a receiver inserting step for inserting the receiver into the cylindrical pipe and an analyzing step for measuring and analyzing impact force signals generated by hammer knocking. When lifting the receiver in the cylindrical pipe at presetting intervals orderly, knocking the side of buildings in presetting intervals, the analyzer analyzes and measures impact force signals generated by knocking the side of buildings and horizontal elastic waves.

The invention provides a catheter pushing device. The device comprises a guide catheter needle, a pusher body, a pushing roller, a clutch, a pushing hand wheel, a self-rotating hand wheel, a catheter protection tube, a parallel rudder, a cardan joint, a cantilever, a self-locking joint, a vertical column, a base, a pusher assembly and a frame assembly. The pusher assembly comprises the guide catheter needle, the pusher body, the pushing roller, the clutch, the pushing hand wheel, the self-rotating hand wheel and a catheter protection tube. The pusher body is installed at the left end of the guide catheter needle. The self-rotating hand wheel is installed at the left end of the pusher body. The center of the pusher body is provided with the pushing hand wheel. According to the catheter pushing device, the pushing hand wheel and the self-rotating hand wheel are provided with microscales, therefore the penetration length and angle of the catheter can be precisely adjusted to facilitate the quantitative analysis by the medical personnel, the device is both stable and accurate. The arranged pusher assembly can be conveniently detached. Before use antiseptic treatment is necessary to the pusher assembly. The device can be used repeatedly, and the cost is reduced.