91results about How to "Fully coupled" patented technology

An optical tube assembly and methods of manufacturing the same include a tube, at least one optical waveguide, and a dry insert. In one embodiment, the dry insert generally surrounds the at least one optical waveguide and forms a core that is disposed within the tube. In one embodiment, the dry insert is compressed at least about 10 percent for coupling the at least optical waveguide to the interior surface of the tube.

An optical fiber cable core includes a buffer tube containing at least one optical fiber and reinforced by at least two substantially radially incompressible longitudinal strength members, each strength member having surface portions radially outermost with respect to the tube axis which are at or protrude from the exterior surface of the buffer tube. If the strength members protrude from the exterior surface of the buffer tube, less than 50%, and preferably less than 20%, of the outer surface of the strength members protrudes from the exterior surface of the buffer tube. The positions of the strength members can be readily determined, can be visible and can be easily removed from the buffer tube prior to slitting the buffer tube to achieve midspan access. The core can include a buffer tube having an inner tubular portion, an outer tubular portion including the strength members, and a release agent between the tubular portions to enable easy separation of the tubular portions so that conventional slitting tools can be used to gain midspan access. Also, an optical fiber cable including the core and methods of manufacturing a reinforced buffer tube are disclosed.

The invention provides, in some aspects, a process, environmental, manufacturing, industrial or other such control system (hereinafter, “control system”) with enhanced, real-time change tracking. The system includes one or more configurable elements (e.g., field devices), a change tracking system that records of changes to those configurable elements (e.g., for compliance reporting, etc.) and a change detection system that responds to detected changes in configuration of those element(s) by inferring an identity of a person and / or device responsible for a change, the time of the change, and / or the reason for the change. This is unlike prior art systems, in which that such information must be specified, e.g., in a data entry form filled-in by the field engineer, operator or other who is making the change.

An ocean bottom seismic cable recording apparatus comprising a plurality of seismic node casings (1), said node casings being separated from each other by separate stress member sections (2), each stress member section having acoustic decoupling arrangements (3) at each end connecting to said seismic node casings (1), and where each seismic node casing comprising an autonomous sensor capsule (5) for sensing and recording seismic data, and wherein the autonomous sensor capsule (5) is removable from said seismic node casing (1), and wherein each seismic node casing (1) further comprising an inner compartment (4) accommodating the autonomous sensor capsule (5).

An electric drive unit provides a simple and economical electrical connection of an electric motor and an electronic module. The commutator of the electric motor, a brush rocker ring arranged on the commutator, and the drive shaft of the electric motor as well as the carrier body of the electronic module are inserted into a transmission housing. In the transmission housing, the carrier body of the electronic module is positioned so that contact elements provided on the brush rocker ring engage into contact points provided on the carrier body of the electronic module. The electric drive unit can be used for window lifter drives.

The invention provides layered perovskite structural ceramic and a preparation method thereof. The preparation method includes mixing well titanate compounds, bismuth compounds, strontium compounds, iron compounds, cobalt compounds and complexing agent in solvent, heating, drying and combusting to obtain powder, and presintering to obtain powder; performing the powder, and performing hot-pressing sintering to obtain the structural ceramic in in a formula (I). Compared with ceramics prepared in the prior art by solid phase sintering process, the structural ceramic in the formula (I) is prepared by solution process and hot pressing sintering. The preparation method has the advantages that less volatile low-valence strontium ions are introduced, increased leakage current due to volatilization of the strontium ions is improved, and ferroelectric properties are improved; the raw materials are evenly spread by the solution process, the power is even in component and has high reactivity, and Fe-Co ions are coupled fully; and the materials processed by hot pressing sintering are high in density and orientation, and the layered perovskite structural material can be obtained, namely Bi(n+1-x)SrxF3(n-3) / 2Co(n-3) / 2Ti3O3(n+1) (I).

A finger mounted acoustic sensor. Various embodiments of the finger mounted acoustic sensors include sensors mounted within a casing designed to fit between fingers. The sensor may be rotated with respect to the casing. Other embodiments include mounting tubes for wearing on a finger. Sensors are embedded in the tube and on the rings such that they are easily positioned using technician's fingers. Other embodiments include rings for mounting sensors on and for steadying the sensors. The hand and finger mounted sensors may be used to provide necessary pressure to the sensor and yet provide a sensor that may be manipulated using hand and finger motion. In other embodiments sensors having a local disconnect are disclosed. Such disconnects may be attached to the clothing of a medical professional, attached via a wrist or armband or the like. Various sensor packages may be accompanied by the use of a flat or flex cable to minimize the torque necessary to manipulate the sensor. Such sensors can be used with a ultrasound platform for generating, processing and displaying ultrasound images.

An inductive coil assembly having multiple coils arranged at distinct orientations to provide efficient inductive coupling of power or communications or both to a device when the device is arranged at different orientations with respect to the inductive primary coil. In one embodiment, the inductive coil assembly includes three coils, each oriented along one of the x, y and z axes of a standard Cartesian three-dimensional coordinate system. The three separate coils provide effective transfer of power and communication when the device is at essentially any orientation with respect to the primary coil. In an alternative embodiment, the multi-axis inductive coil assembly of the present invention can function as a primary to inductively transmit power or communication or both over a plurality of magnetic fields at distinct orientations.

A magnetic field detecting element has a stack which includes a NiCr layer, a first magnetic layer whose magnetization direction varies in accordance with an external magnetic field, a non-magnetic spacer layer, and a second magnetic layer whose magnetization direction varies in accordance with the external magnetic field, said NiCr layer, said first magnetic layer, said spacer layer and said second magnetic layer being disposed in this order and being arranged in contact with each other, wherein a sense current is adapted to flow in a direction that is perpendicular to a film surface of said stack; and a bias magnetic layer which is disposed on a side of said stack, said side being opposite to an air bearing surface of said stack, wherein said bias magnetic layer is adapted to apply a bias magnetic field to said stack in a direction that is perpendicular to said air bearing surface. Both first and second magnetic layers have bcc crystalline structures, and said non-magnetic spacer layer has a film configuration in which an insulating layer or a semiconductor layer is inserted into a metal layer.

Disclosed is an acoustic probe / wedge holder that facilitates the operation of holding and sliding the probe over often non-flat test surfaces. The probe / wedge holder is configured to allow the adjustment of the probe / wedge so that the footing of the probe holder and the test surface of the probe or wedge collectively match the surface of a test object, allowing the probe or wedge to have intimate contact with the test surface and the probe holder to be stably disposed on or gliding over the surface of the test object. The surface of the test object is often of non-flat surface, such as that of a pipe.

A method for realizing horizontal stress sense based on double mode photon crystal optical fiber includes coupling output light of laser into zero double refraction or high double refraction and double mode photon crystal optical fiber by horizontal dislocation mode after said output light passes through polarization controller, setting double mode photon crystal optical fiber in force receiving unit for sensing horizontal stress exerted from outside, utilizing far field light spot to detect space light field formed by double mode interference for obtaining detection result of horizontal stress. The system for realizing said method is also disclosed.

In particular embodiments in accordance with the present invention, a wax-embedded tissue specimen is digested and the resulting digested tissue specimen is purified to provide a purified RNA fraction. The purified RNA fraction is treated with one or more enzymes to provide a sample containing dephosphorylated RNA; the sample is contacted with an enzyme having an RNA ligation activity in the presence of a labeled substrate to provide labeled RNA. Kits for performing the described methods are described. Methods of performing an array analysis of a labeled RNA sample are also described.

The invention relates to a full coupled test probe for dry hole sound wave, and belongs to the field of nondestructive examination equipment manufacture of engineering. The full coupled test probe for the dry hole sound wave comprises a sound wave probe and a pressurizing water bag, wherein the top at one sealed end of the pressurizing water bag is provided with a vent hole of which the diameter is not more than 1 millimeter. An end part of the sound wave probe is provided with a connecting device; and the pressurizing water bag is sleeved outside the sound wave probe. Air in the pressurizing water bag can be directed exhausted by the vent hole; and the pressurizing water bag is filled with water at the same time to ensure internal coupling between the sound wave probe and the pressurizing water bag. The vent hole at the top of the pressurizing water bag has double uses, namely, after the air is exhausted, the vent hole continuously keeps continuous small amount of spilling water, so as to solve coupling (external coupling) between the outer wall of the pressurizing water bag and the wall of the hole. The test probe realizes full coupling of the sound wave prove, the pressurizing water bag and the wall of the hole so that the tested data are stable and reliable, and meets the requirement of rapid detection.

An antenna apparatus includes an antenna substrate, a coil antenna including a conductive pattern located on the antenna substrate, a feeding coil magnetically coupled with the coil antenna, and a transceiver circuit electrically connected with the feeding coil. The feeding coil is disposed on the same substrate as the coil antenna, and is defined by a conductive pattern, which is not electrically connected with the coil antenna. Two terminals of the feeding coil are electrically connected with the transceiver circuit.

The invention discloses a sound emission detection sensor fixing device which comprises a main body, whose first surface is provided with a main body cavity and two accommodating cavities; a spring and a spring seat mounted in the main body cavity, with one end of the spring connected to the bottom of the main body cavity and the other end connected with the spring seat. Each accommodating cavity is fixed with a magnet and two metal pieces are respectively attached to the two faces of the magnet, wherein the distance between a first end face of each metal piece and the bottom of the accommodating cavity is longer than that between a second end face of the magnet and the bottom of the accommodating cavity, so that the main body is fixed on the surface of a tank wall via the first end faces of the four metal piece. As the spring seat transfers the pressure of the spring, a sensor is pressed against the surface of the tank wall by an even force. The fixing device of the invention solves the technical problem that the sensor is installed and fixed by using a magnetic holder in the prior art so that adaptability to the tank wall is poor, the magnetic force is either too large or too small, and the force applied to the sensor is uneven. The fixing device not only stabilizes the sensor, but facilitates the detachment of the fixing device.

The present invention relates to a VCSEL device comprising an optical gain medium (8) arranged between a first DBR (9) and a second DBR (7). The first and the second DBR form a laser cavity and are designed to allow self-contained lasing in the laser cavity, said second DBR (7) being partially transparent for laser radiation resonating in the laser cavity. An optical element is arranged on a side of the second DBR (7) outside of the laser cavity on the optical axis of the laser cavity. The optical element has a concave surface (5) facing the second DBR (7) and being designed to reflect a portion of laser radiation emitted through the second DBR (7) back into the laser cavity. The ratio R / d of the radius of curvature R of the concave surface (5) and the distance d between the concave surface (5) and the gain medium (8) is in the range between 1 and 2. With the proposed VCSEL device a high power output with an improved mode distribution and mode stabilization is achieved.

The invention provides a calcium-based compound catalyst and a loading method thereof and relates to the technical field of catalytic coal gasification. The calcium-based compound catalyst has higher catalytic efficiency in both gasification reaction and methanation reaction, can realize gasification, conversion and methanation reaction coupling in a gasification furnace, and improves the content of methane in product gas. The calcium-based compound catalyst disclosed by the invention comprises a calcium-containing substance and a transition metal-containing substance. The calcium-based compound catalyst and the loading method thereof, disclosed by the invention, are applicable to the catalytic coal gasification process.

The invention describes the method and apparatus for enhancement of coupling efficiency in effective-ridge laterally-coupled surface-etched grating waveguide structures, where a slab waveguide has a sequence of the periodic parallel segmented trenches etched from its top surface, such that the segments of intact material having higher refractive index than that in the surrounding segments of periodic trenches form the effective ridges which confine the optical field in and around these ridges, on one hand, and provide bidirectional coupling for the confined modes experiencing Bragg reflection from the segments of the periodic trenches, on the other. The invention discloses the designs of the multiple effective ridge laterally coupled surface-etched grating waveguide structures, which enhances the coupling efficiency as compared to a conventional single effective ridge grating design because of an intended dilution of the lateral confinement caused by the multiple effective ridges, resulting in an increase of the optical mode's overlap with the surface etched grating formed everywhere outside the effective ridges.

The invention, which relates to the technical field of prefabricated building, discloses an ultrasonic transceiving processing module comprising a central processing unit connected with an optocoupler isolation device. The optocoupler isolation device is connected to a VDMOS switch through a driving unit and the VDMOS switch is connected to a transducer to form an ultrasonic transmitting portion. The transducer is connected to an amplitude limiting unit and a two-stage programmable amplification unit carries out exponential amplification to form an ultrasonic receiving portion. The two-stage programmable amplification unit is controlled by a D / A signal of the central processing unit. In addition, the invention also discloses an ultrasonic detector applying the ultrasonic transceiving processing module and a method for detecting the grouting fullness of a prefabricated component sleeve. Therefore, the structure of the detector is optimized; the instrument cost and the detection cost are reduced; and the sensitivity of the detection is improved.

The invention discloses an MEMS gyroscope and a preparation and packaging method thereof. The MEMES gyroscope is of a tuning fork type gyroscope structure and comprises an outer frame, a mass block, an anchor point, a driving unit, a detection unit, a first-stage elastic connecting beam, a second-stage elastic connecting beam and a coupling elastic connecting beam. The driving mode is in-plane reverse oscillation motion of the two mass blocks relative to the outer frame, and the sensing mode is in-plane torsional pendulum motion of the whole structure. Detected Coriolis force signals are output in a differential mode through the induction electrodes located at the four corners of the outer frame. Through the driving mass block of the MEMS gyroscope, full coupling is achieved, meanwhile, fewer anchor point structures are provided, errors caused by machining errors and packaging stress can be effectively restrained, and therefore the precision and performance of the MEMS gyroscope are improved. According to the preparation and packaging method provided by the invention, vacuum packaging of the device is realized by using a wafer level vacuum bonding method, the difficulty of device design, preparation and electrical wiring is reduced, and the method is simple and efficient.

The invention provides a compact five-port structure applied to three-path high-efficiency high-isolation power synthesis. Three identical rectangular waveguides are interested at an included angle of 120 degrees; an E surface of a circular waveguide is coupled to a top plane of an intersected region of the three identical rectangular waveguides; a thin-wall circular-truncated-cone type embossment extending to the intersected region is arranged at the bottom of the intersected region of the three identical rectangular waveguides; a first metal probe and a second metal probe that are connected successively extend from a top flat plate of the circular-truncated-cone type embossment towards a direction of the circular waveguide, and a first medium coaxial waveguide and a second medium coaxial waveguide that are connected successively extend from the top flat plate of the circular-truncated-cone type embossment in an opposite direction; and the first metal probe and the first medium coaxial waveguide are connected. On the basis of keeping a compact size, a six-mode network is formed by using a TE10 mode of the three identical rectangular waveguides, a TEM mode of the coaxial waveguides, and a TE11 mode of the circular waveguide, thereby realizing high-efficiency power synthesis from three-path constant-amplitude same-phase rectangular TE10mode to a coaxial TEM mode.

The invention discloses a composite electrode device for direct-current electrical prospecting and an operation method of the composite electrode device. The device comprises a conical spiral telescopic electrode and a disc-type base, wherein the disc-type base comprises a protection casing, a water storage cavity is formed in the protection casing, and the bottom end of the water storage cavity is communicated with a high-compression sponge through a water seepage plate; a water injection hole is formed in the protection casing and is communicated with the water storage cavity; the electrode penetrates through the water storage cavity and the high-compression sponge of the disc-type base to reach the bottom of the disc-type base. The composite electrode device has the benefits that the device adopts a center fixing structure comprising the disc-type base and the electrode and can be used for both a hard ground surface and a soft ground surface. The whole device can naturally and fixedly stand on the ground, the central electrode and the ground are sufficiently coupled due to the design of the water storage cavity and the high-compression sponge, and with the adoption of the design of a slot and elastic fixing contact pieces, connection of the electrode for direct-current electrical prospecting and a main unit is facilitated.

A finger mounted acoustic sensor. Various embodiments of the finger mounted acoustic sensors include sensors mounted within a casing designed to fit between fingers. The sensor may be rotated with respect to the casing. Other embodiments include mounting tubes for wearing on a finger. Sensors are embedded in the tube and on the rings such that they are easily positioned using technician's fingers. Other embodiments include rings for mounting sensors on and for steadying the sensors. The hand and finger mounted sensors may be used to provide necessary pressure to the sensor and yet provide a sensor that may be manipulated using hand and finger motion. In other embodiments sensors having a local disconnect are disclosed. Such disconnects may be attached to the clothing of a medical professional, attached via a wrist or armband or the like. Various sensor packages may be accompanied by the use of a flat or flex cable to minimize the torque necessary to manipulate the sensor. Such sensors can be used with a ultrasound platform for generating, processing and displaying ultrasound images.

A chip-shaped laser medium (12) is side pumped to improve mode matching between the pumping energy (50) and lasing mode volume (36). The chip thickness (44) and laser medium doping level can be designed and controlled to ensure adequate pumping coupling efficiency. The chip shape can also be employed to provide greater chip surface areas (22) for cooling the laser medium (12). The laser pumping package (70), gain module (101), and chip-shaped design can be scalable to offer higher pumping power and high output power. Different orientations of the gain modules (101) with respect to each other can be used to provide better lasing mode quality.

The invention discloses a coal-fired unit coupling biomass power generation system and method. The coal-fired unit coupling biomass power generation system comprises a crushing mill, a conveyor, a hammer mill and a booster fan. An outlet of the crushing mill is connected to the input end of the conveyor, the output end of the conveyor is connected to a biomass powder inlet of the hammer mill, the hammer mill is further connected with a primary air bypass pipeline, and a biomass powder outlet of the hammer mill is connected to a primary powder pipe of the boiler through a biomass powder pipeline and the booster fan arranged on the biomass powder pipeline. The coal-fired unit coupling biomass power generation system and method are simple and efficient, large influences on the output of a unit coal mill in a co-grinding or forming blending combustion process is avoided, and the system investment of an independent spraying combustion process and the transformation influence on a boiler can also be reduced.

The invention relates to the field of potential dame risk detection, and particularly relates to a hardened dam potential risk detection method and device applying the parallel electrical survey. The device comprises an electrode for an electrical prospecting apparatus, wherein the frame inside the electrode comprises a copper bar and a transfusion duct; conductive sponge and conductive lint sequentially coat the outer part of the middle part of the electrode. The method and the device have the advantages of convenience in field operation, flexibility in operation, low labor intensity and wide application environment since a charging mode electric hammer is adopted to drill the surface of hardened dam; the drilling hole has a small diameter, so that the work for repairing the hardened surface layer of the dam in later phase can be facilitated.