128 results about "Cylindrical conductor" patented technology

A compound plasma configuration can be formed from a device having pins, and an annular electrode surrounding the pins. A cylindrical conductor is electrically connected to, and coaxial with, the annular electrode, and a helical conductor coaxial with the cylindrical conductor. The helical conductor is composed of wires, each wire electrically connected to each pin. The annular electrode and the pins are disposed in the same direction away from the interior of the conducting cylinder.

In a plasma processing apparatus, a member for propagating high frequency from a high frequency power supply and / or to which the high frequency is applied. A power feed rod is electromagnetically shielded between a matching unit and a bottom plate of a chamber by a coaxial cylindrical conductor connected to a ground potential. A surface potential system disposed in an appropriate distance from the power feed rod in radius direction is installed in the cylindrical conductor, and measures in a non-contact state the electrostatic surface potential of the power feed rod through electrostatic capacitance and provides a controller with a surface potential detection signal including surface potential measurement value information. The controller performs a required signal processing or operation processing on the basis of the surface potential detection signal from the surface potential system, thereby obtaining the measurement value of the DC potential on the power feed rod.

A technique is provided to reserve large examination space in the tunnel type MRI apparatus, without increasing production cost nor reducing significantly irradiation efficiency and homogeneity in an irradiation distribution within an imaging region. The present invention provides an RF coil unit in which four partial cylindrical coils are placed with a gap therebetween in the circumferential direction inside a cylindrical RF shield, in such a manner that two pairs of the partial cylindrical coils are opposed to each other, and magnetic fields produced by the individual partial cylindrical coils are combined, thereby producing a circularly polarized wave field or an elliptically polarized wave field. The partial cylindrical coil is provided with a partial cylindrical conductor, multiple first conductors substantially parallel with the central axis of the RF shield, multiple capacitors connecting both ends of the first conductors with the partial cylindrical conductor, and a second conductor adjacent to at least one of the ends of the first conductor. The partial cylindrical coils are respectively provided with high frequency signals having a desired amplitude ratio and phase difference, while a reference frequency thereof being identical.

A conductive wire includes a plurality of thermoplastic filaments each having a surface, and a coating material having a plurality of carbon nanotubes dispersed therein. The coating material is bonded to the surface of each thermoplastic filament. The thermoplastic filaments having the coating bonded thereto are bundled and bonded to each other to form a substantially cylindrical conductor.

The invention relates to a secondary series type permanent-magnet speed governor comprising a cylindrical conductor rotor body, a permanent-magnet rotor and a regulator, wherein the permanent-magnet rotor and the cylindrical conductor rotor body are in secondary series types, and the conductor rotor can regulate an active area into 0 or 100 percent by only moving the width of a conductor in order to greatly shorten a regulation distance.

A wiring process between the provided power semiconductor module and the external circuit is simple. In the power semiconductor module, a power semiconductor element and a cylindrical conductor are joined to one surface of a lead frame. An opening of the cylindrical conductor is exposed at a surface of transfer molding resin. Sealing with the transfer molding resin is performed such that terminal portions of the lead frame protrude from peripheral side portions of the transfer molding resin. The cylindrical conductor is conductive with a control circuit. The terminal portions of the lead frame are each conductive with a main circuit.

A technique is provided to reserve large examination space in the tunnel type MRI apparatus, without increasing production cost nor reducing significantly irradiation efficiency and homogeneity in an irradiation distribution within an imaging region. The present invention provides an RF coil unit in which four partial cylindrical coils are placed with a gap therebetween in the circumferential direction inside a cylindrical RF shield, in such a manner that two pairs of the partial cylindrical coils are opposed to each other, and magnetic fields produced by the individual partial cylindrical coils are combined, thereby producing a circularly polarized wave field or an elliptically polarized wave field. The partial cylindrical coil is provided with a partial cylindrical conductor, multiple first conductors substantially parallel with the central axis of the RF shield, multiple capacitors connecting both ends of the first conductors with the partial cylindrical conductor, and a second conductor adjacent to at least one of the ends of the first conductor. The partial cylindrical coils are respectively provided with high frequency signals having a desired amplitude ratio and phase difference, while a reference frequency thereof being identical.

The invention relates to a safety monitoring system of tower crane, particularly to an inclination alarming device of tower crane, and belongs to mechanical and electrical equipment processing technology field. The device comprises: a closed loop formed by the electrically connection of a power supply, an inclination sensor, and a sound and light alarm, wherein the inclination sensor is vertically fixed at the part of the tower crane which needs to be monitored; the inclination sensor is an inclination triggering circuit switch, which consists of a disc-shaped conductor plumb and a cylindrical conductor internal barrel; the bottom of the conductor internal barrel is sealed and the top of the conductor internal barrel has a top cover; the top cover is connected with an insulator external barrel through cup screw threads; and the conductor plumb is hanged on the top cover through a plumb hanging string. When the inclination sensor is in a vertical state, the conductor plumb does not contact with the conductor internal barrel, the triggering switch is in off state and the alarm does not work; while the inclination sensor is inclined in any direction, the conductor plumb contacts with the conductor internal barrel, the triggering switch is in on state and the alarm works.

The invention provides an electromagnetic heating roller device with a built-in coil, which comprises a roller and an electromagnetic heating coil structure component, wherein the roller is a cylindrical conductor; the electromagnetic heating coil structure component is located in the middle of the roller and is concentric with the roller, and a gap is configured between the electromagnetic heating coil structure component and the roller. The electromagnetic heating roller device has the advantages of a simple structure, convenient maintenance, low fault rate, good safety, reliability and energy-saving and environment-friendly properties.

An adaptable electrical connector is disclosed that includes a parallelepiped insulative seat including a front end, a rear end, a bottom, a top, and a plurality of lengthwise parallel grooves through the bottom, the groove being open to the front end, the rear end, and the bottom respectively; and a plurality of cylindrical conductors each including a rear cylindrical section; wherein the conductors are fastened in the grooves with the rear cylindrical sections exposed. The invention can decrease height and is adapted to mount on a PCB in either a first orientation or a second orientation perpendicular to the first orientation.

The invention discloses a radial foil-free diode guiding magnetic field system which mainly solves the problems that in the prior art, the difficulty of implementation of electron beam transmission guiding is large, the size is large, the weight is heavy, the power consumption is high, the manufacturing cost is high, and the technological development requirements cannot be met. The radial foil-free diode guiding magnetic field system comprises a negative pole supporting rod (1), a transmission disc, a radial transmission wire (4), a first positive pole wall (2), a second positive pole wall (8) and a third positive pole wall (9), wherein the negative pole supporting rod (1) is formed by cylindrical conductors, the position below one side of the transmission disc is connected with the negative pole supporting rod (1), the transmission disc is formed by disc conductors, the radial transmission wire (4) is located right above the transmission disc, the first positive pole wall (2) and the second positive pole wall (8) are connected to the two sides of one end, which is closest to the transmission disc, of the radial transmission wire (4) respectively, the third positive pole wall (9) is located on the outer side of the transmission disc, and one end of the third positive pole wall (9) is connected with the other end, opposite to one end connected with the first positive pole wall (2) or the second positive pole wall (8), of the radial transmission wire (4). By means of the technical scheme, the radial foil-free diode guiding magnetic field system is easy to implement, achieves the aim of meeting the technological development requirements and has the high practical value and the high promotional value.

Manufacture cost and maintenance cost of RF coils of MRI devices are reduced without any limitation concerning size of the coils. By constituting an antenna device for magnetic resonance imaging devices with a cylindrical outer conductor, a looped ribbon-shaped conductor disposed inside the cylindrical outer conductor along the cylindrical surface, and a feed point for transmission and / or reception between the cylindrical conductor and the ribbon-shaped conductor, and disposing the ribbon-shaped conductor so that length thereof can be readily adjusted, there is provided an antenna device for magnetic resonance imaging devices that generates a magnetic field component perpendicular to the central axis of the cylinder at a desired resonance frequency and shows sensitivity without using capacitors and without being imposed any limitation concerning size in the diametral direction of the cylinder.

The present invention relates to electrical devices, and more specifically to movable contact assemblies that are used in a high-voltage switch, such as a rotary contact system intended to be incorporated into the tubular conductors of a high-voltage switch, which includes: a main pin; a first assembly, consisting of a primary tubular conductor and a male cylindrical conductor; a second assembly, consisting of a secondary fitting, a secondary conductor, and a female cylindrical conductor, with the said second assembly being coupled rotatively to the first assembly by means of the main pin.

The invention discloses a connector used for a cable with low voltage and a large wire diameter. The connector comprises a joint body, pressing sleeves and tapered clamping blocks, wherein the joint body is a cylindrical conductor which is respectively provided with outer threads at the periphery of each of the two ends; concave holes are formed on the centers of end parts at the two ends of the joint body, and a cable joint is respectively contained in the concave hole on one end part; each of the pressing sleeves is a hollow barrel body which is provided with inner threads at two ends of the inner wall; the two pressing sleeves are respectively matched with outer threads at the two ends of the joint body; two cable joints are placed in the concave holes of the joint body after respectively passing through the pressing sleeve corresponding to each end, and are threaded and pressed with the outer threads at the two ends of the joint body by the pressing sleeves; the tapered clamping blocks are of hollow tapered structures matched with the concave holes of the joint body; the two tapered blocking blocks are clamped in the concave holes at the two end parts of the joint body after respectively penetrating through the two cable joints in a sleeved manner, and are used for clamping a cable. The connector disclosed by the invention can be used for quickly and detachably connecting the cable with the cable or terminal equipment, so that the problems that the existing cable is complex in connecting process, poor in detachable performance and poor in connecting and firming performances are solved.