85results about How to "Small cross-sectional size" patented technology

A capacitive sensor array includes a sensor electrode, a shielding electrode and a background electrode which are surrounded by insulator materials and connected to a control and evaluation circuit. Using the sensor electrode that extends along a first coordinate line, the entry of an object into a space ahead of the sensor electrode is detected. The control and evaluation circuit detects a capacity change of the sensor electrode as compared to a reference potential. The shielding electrode is connected to the sensor electrode via the control and evaluation circuit in such a manner that its potential follows. The three electrodes are arranged behind each other along a second coordinate line that is perpendicular to the first coordinate line. The insulating materials are arrayed between the sensor electrode and the detection zone. The central axis of the cylinder lies within the plane that is formed by the first and second coordinate lines. The insulator materials between the detection zone and the sensor electrode include at least one plastic layer that directly surrounds the sensor electrode and a plastic layer that is arrayed at a specified distance. The insulator materials are arranged so that the relative dielectricity constant initially assumes a relatively high value of the surrounding plastic layer as the distance from the sensor electrode increases, then drops to a value that approaches the value of 1, and then again rises to a relatively high value of the outer plastic layer.

A carrier fluid and an added input fluid are mixed together in a static mixer to create an emulsified output fluid mixture. The static mixer comprises a plurality of mixing chambers whose cross-sectional size expand considerably relative to an inlet, a series of bent and curved baffle plates which divert, rotate, divide, reverse and otherwise create turbulence in the combined flow, and inlet chamber in which the added input fluid is dispensed upstream into the carrier fluid, and a number of other structural mixing elements which, through turbulence, abrupt pressure drops and velocity changes, subdivide the added input mixture into very small volumetric quantities evenly dispersed within the carrier fluid to create a homogeneous output fluid mixture.

Calibration and reference samples with reduced cross-sectional areas encased within imaging tables or couch pads have low attenuation properties and provide patient comfort. The samples are stable and provide reproducible images without artifacts. The torso-length samples avoid positioning errors and misalignment. Sample density or mass calibration materials include calcium compounds representative of bone and calcifications, iodine compounds for contrast angiography, gadolinium compounds for MRI, and fat and tissue equivalent materials. Density corrections for variable patient scatter and imperfect image reconstructions improve quantitative measurement. Automated computer methods detect the samples and record readings on all images over the extent of the scans without operator interaction. Spatial references function as location references and enable spatial correction of device imperfections such as point spread function (PSF) or motion for improved images. Comparative analysis of backward and forward projections corrects images based on simultaneous imaging of the references of known properties.

A subassembly for a video endoscope with a picture-recording sensor (9) which is electrically conductively arranged on a flexible circuit board (8) which next to the sensor (9) is bent at least at one side and is conductively connected to at least one electrical cable proximally of the sensor (9).

Robust ceramic igniters are provided that include an improved sealing system which can significantly enhance operational life of the igniter. Preferred igniters comprise a conductive cold zone and hot zone with higher resisitivity. A hermetic sealant material covers one or more electrical connections on the of each cold zone, thus shielding the electrical connections from environmental exposure, and thereby avoiding igniter failure resulting from electrical shorts and/or undesired oxidation.

Disclosed are electromagnetically conductive articles comprising a densified core material and at least one electromagnetically conductive material. Also disclosed are electromagnetically conductive articles comprising at least one layer of a densified fabric material at least a portion of at least one surface of which is plated with one or more electromagnetically conductive particulate materials. Methods of making and using such electromagnetically conductive articles are also provided.

The invention discloses a bidirectional overrunning clutch, a speed control device and an automatic speed control system. The bidirectional overrunning clutch comprises a disc-shaped driving part, wherein the disc-shaped driving part can rotatably sleeve a shaft-shaped driven part; a spiral spline sleeve is in spiral spline fit with a journal of the driving part, and a braking device which is used for applying frictional resistance to the spiral spline sleeve is connected to the spiral spline sleeve; a first end surface engagement clutch structure and a second end surface engagement clutch structure are formed between the spiral spline sleeve and the driven part, and the first end surface engagement clutch structure and the second end surface engagement clutch structure are respectively used only for the spiral spline sleeve to drive the driven part to synchronously rotate clockwise and anticlockwise; a bidirectional clutch structure is formed between high and low-speed driven gears of the speed control device and the automatic speed control system. The bidirectional overrunning clutch has the beneficial effects of small cross-sectional dimension, convenience in application, high mechanical efficiency, strong loading capability and long service life; two-gear automatic transmission and reverse output can be realized by the speed control device.

The invention belongs to the technical field of microwaves and relates to a broadband circularly-polarized antenna for a handheld through-wall radar. The broadband circularly-polarized antenna sequentially comprises a radome 1, an upper patch layer 2, a PMI foam layer 3, a lower patch layer 4, a first dielectric layer 5, a coupling slot layer 6, a second dielectric layer 7, a feed microstrip 8 anda metal back cavity 9 from top to bottom, wherein a hollowed-out slot 61 is formed in the coupling slot layer 6; the shape of the feed microstrip 8 is a combined shape of a rectangle and a sector; and the metal back cavity 9 is a rectangular cavity with an open surface at one end and the open surface is toward the feed microstrip. According to the broadband circularly-polarized antenna, the technologies, such as slot-coupling feeding, a low-dielectric constant layer, laminated microstrip-coupled patches and a reflecting back cavity are comprehensively adopted, so that the antenna reaches theimpedance and beam bandwidth of over 30% under low profile requirements. The target of double-patch coupling resonance is achieved through tuning the transverse dimensions of upper and lower patches,and circular polarization is achieved by adopting the cutting angle design of the rectangular patches.

A tent, such as a collapsible canopy, having removable awning structures. In some embodiments, the awning structure includes a detachable connection member, an awning tube coupled to the connection member and an awning fabric or other suitable awning body. The awning cloth can be fixed on the awning tube, such as extending between a pair of awning tubes. When the intensity or direction of the outdoor environment light/precipitation changes, the removable awning structures may be deployed as desired to increase or adjust the shade area according in the desired direction to flexibly meet shade or storm requirements.

The invention relates to a spring contact pin arrangement having a spring contact pin that comprises a pin housing in which a contact element is mounted so as to be longitudinally displaceable and is loaded by a spring device acting opposite to a displacement direction, wherein the contact element is connected to at least one first interface of the spring contact pin arrangement and protrudes from the pin housing with a contact region for electrical contacting of an electric test item. According to the invention the spring contact pin arrangement comprises a position sensor, wherein the contact element, in order to transfer the stroke thereof, is connected to a displaceable sensor element of the position sensor detecting the stroke position of the contact element.

The invention provides a space bearing type modular mechanical arm joint. A bearing connection mechanism is fixedly connected with a fixed bearing mechanism which is connected with a rotary bearing mechanism through a harmonic reducer and a cross roller bearing, one end of a servo motor is connected with an incremental encoder, the other end of the servo motor is connected with a planetary speed reduction mechanism which is connected with the harmonic reducer through a bevel gear, the cross roller bearing is connected with the rotary bearing mechanism through an output shaft, an absolute encoder is fixedly connected onto the output shaft, and an EtherCAT bus driver is connected with the servo motor and performs servo control on the servo motor. The invention further discloses a modular space bearing type modular mechanical arm joint which includes a plurality of space bearing type modular mechanical arm joints which are combined together. The modular space bearing type modular mechanical arm joint is applicable to the maintenance environment with small inlets of magnetic confinement fusion (MCF) devices, long distance and large rotation space, and has the advantages of being light, compact in structure, large in bearing capacity, convenience in wiring, good in real-time communication and the like.

A method for forming a conductive plug on the surface of an MTJ includes providing a substrate, forming interconnected metal layers at the bottom of the substrate, and forming the MTJ on the surface of the interconnected metal layers; forming a barrier layer on the surfaces of the substrate and the MTJ; forming a medium layer on the surface of the barrier layer, and performing imaging etching on the medium layer to form a first through hole penetrating through the medium layer, wherein the surface size of a first barrier layer on the surface of the MTJ is larger than the size of the first through hole; forming a polymer on the side wall surface of the first through hole, taking the polymer as a mask to perform etching to form a second through hole; and removing the polymer, and forming the conductive plug in the second through hole which the polymer is removed from. Short circuit or breakdown between the conductive plug and conducting materials under the MTJ can be avoided due to the fact that the surface size of the first barrier layer on the surface of the MTJ is larger than the size of the later-formed first through hole.

A slim linear LED lighting device is provided, including: a printed circuit board on which a connecting circuit is provided, at least one power input component, and a plurality of LED Bars. The LED Bar is formed by a plurality of the same kind of LED chips, and has a slim strip-shaped condensing lens structure integrally formed in the LED Bar packaging process by molding process to control the beam angle of the LED Bar and therefore the light distribution of the slim linear LED lighting device. The LED Bar's condensing lens has a small cross-sectional dimension; therefore the effective utilization factor of the light is improved as the slim linear LED lighting device is applied to a linear automotive lamp designed with a thin light blade structure.

The invention discloses a multifrequency base station antenna and low frequency radiation units thereof, and each of the low frequency radiation units includes at least one radiation arm and a feedingBalun supporting and feeding the radiation arms, each of the radiation arms includes a first end connected with the feeding Balun and a second end connected with the first end and away from the feeding Balun, the second end sinks to from an enclosing cavity lower than a radiation surface of the low frequency radiation unit, and the enclosing cavity is used for arranging high frequency radiation units. The radiation arms of the low frequency radiation unit sink to form the enclosing cavity used for placing the high frequency radiation units, and thus the cross section size of the multifrequency base station antenna can be greatly reduced on the basis of not influencing a radiation characteristic of the multifrequency base station antenna.

The invention discloses a compact flangeless waveguide connection structure. A positive connection portion comprises a first standard waveguide, a first impedance conversion section, a first non-standard waveguide section and a periodic metal convex body array. The first impedance conversion section is located between the first standard waveguide section and the first non-standard waveguide section, the periodic metal convex body array is arranged on a periphery of an outer wall of the first non-standard waveguide section, and a plurality of metal convex bodies are respectively and uniformly arranged according to a periodic layout rule. A negative connection portion comprises a second standard waveguide, a second impedance conversion section and an expanded cavity structure. The second impedance conversion section is located between the second standard waveguide and the expanded cavity structure, and the expanded cavity structure is arranged at a tail end of the second impedance conversion section. One end, with the periodic metal convex body array, of the positive connection portion is inserted into the expanded cavity structure of the negative connecting portion to form a whole compact flangeless waveguide connecting structure. A size is greatly reduced, a miniaturization design and flexible layout are better facilitated, and more convenient and flexible assembling can be achieved through a plug-pull design.