74 results about "Electric cables" patented technology

The invention provides a system and method for measuring vital signs (e.g. SYS, DIA, SpO2, heart rate, and respiratory rate) and motion (e.g. activity level, posture, degree of motion, and arm height) from a patient. The system features: (i) first and second sensors configured to independently generate time-dependent waveforms indicative of one or more contractile properties of the patient's heart; and (ii) at least three motion-detecting sensors positioned on the forearm, upper arm, and a body location other than the forearm or upper arm of the patient. Each motion-detecting sensor generates at least one time-dependent motion waveform indicative of motion of the location on the patient's body to which it is affixed. A processing component, typically worn on the patient's body and featuring a microprocessor, receives the time-dependent waveforms generated by the different sensors and processes them to determine: (i) a pulse transit time calculated using a time difference between features in two separate time-dependent waveforms, (ii) a blood pressure value calculated from the time difference, and (iii) a motion parameter calculated from at least one motion waveform.

A flat cable conductor has: a conductor made of copper or a copper alloy; a first plating film made of tin and/or a tin-copper alloy, the first plating film being formed around the conductor; and a second plating film made of an alloy of tin and a third element selected from Au, Ag, Ni, Ge, Zn and Bi, the second plating film being formed around the first plating film. The third element has a concentration of 0.01 or more and 80 or less wt % at an outer surface of the second plating film.

A water evaporation system and method for disposing of excess water left over from oil or gas drilling, fracturing, and production operations and from other wastewater producing operations. The system comprises a pumping system for pumping the wastewater from a pond through a filtration system and then to one or more nozzle arrays attached to cables suspended over the pond.

The invention discloses an intelligent monitoring device for temperature and insulation state of a 330KV high-voltage cable in a hydropower station. The device is characterized by being provided with a central processing module unit (CPU), a data acquisition and conversion unit, a light transmitting/receiving module, an alarm output module, a plurality of optical fiber temperature sensors and a plurality of current sensors, wherein the data acquisition and conversion unit is used for transmitting digital signals to the CPU under the control of the CPU; the light transmitting/receiving module is used for transmitting electrical signals to the data acquisition and conversion unit; the alarm output module can be used for communication with a remote monitoring system; the optical fiber temperature sensors are respectively arranged at the joints of the high-voltage cable to be detected and used for connecting temperature detection signals to the light transmitting/receiving module; and thecurrent sensors are respectively arranged on joint metal sheaths of the high-voltage cable to be detected and used for connecting current detection signals to the data acquisition and conversion unit. The device is particularly suitable for safety monitoring of the 330KV high-voltage cable in the hydropower station, can realize real-time monitoring of the temperature and the insulation state of the cable in the hydropower station, and can also ensure self safety.

The invention relates to a cable inspection robot and a control system of the cable inspection robot. The control system comprises a control module, a temperature collecting module, an image collecting module, a servo system, a power source module and a storage module. The temperature collecting module and the image collecting module are used for collecting temperature signals of cables and image signals of the cables respectively. The control module comprises a first controller and a second controller. The first controller is connected with the temperature collecting module, the image collecting module and the servo system and is used for processing the temperature signals collected by the temperature collecting module and the image signals collected by the image collecting module and controlling the servo system. The second controller is connected with the first controller, the power source module and the storage module and is used for storing the temperature signals processed by the first controller and the image signals processed by the first controller into the storage module. Due to the fact that the first controller and the second controller are arranged in the control system, processing speed can be greatly improved, so that the control system is suitable for high-speed inspection of the cable inspection robot.

Provided is an electric cable cutter that easily cuts a cable. An electric cable cutter which is used together with a standard hand-held tool as a power source includes: a housing (1) which serves as a gear box; a pair of cutting blades (11, 12) which is supported by the housing and is relatively opened and closed; a pair of orthogonal gears to which power is input from the hand-held tool; a drive shaft which includes an eccentric shaft portion attached to an output gear of the pair of orthogonal gears; a differential gear mechanism which decelerates a rotation of the drive shaft; and an Oldham coupling which corrects an eccentric rotation of an output gear of the differential gear mechanism to a rotation about a center axis, wherein a circular-arc-shaped outer surface of the other cutting blade axially supported by one cutting blade so as to be openable and closable in the pair of cutting blades is provided with an outer toothed portion engaging with an output gear of the Oldham coupling and an input gear of the pair of orthogonal gears is connected to the hand-held tool through an adapter pin which is attachable and detachable through a one-touch operation.

A cable assembly, comprising a housing having a plurality of receiving grooves recessing forwardly from a rear surface thereof, a plurality of lenses located on a front surface of the housing, a plurality of conductive terminals received in the housing and arranged in two rows, a cable electrically connected to the conductive terminals and a plurality of optical fibers received in the receiving grooves and alignment to the lenses, respectively. The receiving grooves are located between two rows of the conductive terminals.

The invention discloses a girdling and stripping device for an outer insulating sheath of a cable. The device comprises a main machine body. A left-right through cutting cavity is formed in the main machine body. A clamping delivery mechanism is arranged on the left side of the cutting cavity. A rotary delivery cavity which is through left and right and communicates with the cutting cavity is formed in the clamping delivery mechanism. Three L-shaped delivery machine arms are uniformly arranged on the inner wall of the rotary delivery cavity. According to the invention, through rotation and delivery of the delivery arm, a cable is fed into the cutting cavity, annular and linear cutting is conducted on the surface of the cable through the cutting knife, the insulation sheath of the cable iscut off, and accurate and reliable cutting is guaranteed through supporting of the supporting mechanism. Meanwhile, the cut insulation sheath is automatically separated through the peeling mechanism,and the cable and cutting waste are conveyed out respectively.

Disclosed is a device for detecting electric cable troubles. The device comprises an electromagnetic sensor for rounding electric cable to be detected, a driving source component, a signal processing and displaying unit, and a signal cable. The electromagnetic sensor comprises a group of wires stagger joint between a plug and a socket. The device can be used to detect broken fold in multi-fold core cable, cable insulation and grounding.

The invention discloses a novel transformer station secondary cable alignment device. The device comprises a detected end and a detection end which are respectively arranged at two ends of a to-be-detected secondary cable, and a voltage measurement device used for measuring a voltage of the two ends of the secondary cable, wherein the detected end is provided with a power source, a switch K1, N wiring ends and N+1 wiring resistors connected in series between the power source and the switch, and the N wiring ends are respectively connected with wiring nodes of any two adjacent wiring resistors. The device is advantaged in that through setting alignment terminals, the wiring resistors are arranged among the alignment terminals, all the wiring resistors are connected in series with a certain voltage, a voltage of any two points of each wiring terminal can be determined, so a voltage difference table can be made, through voltage measurement of the other end of the to-be-detected secondary cable, determination of corresponding labels can be carried out through a table query method, cable alignment can be accomplished, the device is integrally convenient and rapid, and low cost and high precision are realized.

A sales packaging for electric storage batteries having a backing and a cover fastened thereto. The storage battery has a connecting cable and a connector. The cover encloses the storage battery. The connecting cable and connector are brought out of the sales packaging and are accessible without damaging the cover. The connector is arranged in an opening in the backing, removable therefrom, and the opening is surrounded by slits.

The present invention discloses a grafted blending oil-resistant halogen-free electric cable insulation material, which comprises, by weight, 10-20 parts of a vulcanized silicon resin, 40-60 parts of an EVA resin, 10-30 parts of polyamide, 10-20 parts of a POE grafted zinc maleate ionomer, 1-10 parts of low density polyethylene, 1-10 parts of calcium chloride, 60-90 parts of a modified flame retardant agent, 0.1-1 part of a coupling agent, and 0.5-5 parts of an antioxidant. According to the present invention, the grafted blending oil-resistant halogen-free electric cable insulation material uses the maleic anhydride grafted modified low density polyethylene, such that the electric cable is durable, can be used in the kitchen and other heavy oil places, and can still continuously work after encounter of various oil leakage conditions so as to win time for repair; and the process is simple, the use is safe, and the broad market application prospect is provided.

The invention discloses a rectangular waveguide covered with a dielectric layer in the technical field of communication cables. A waveguide structurally comprises the rectangular waveguide and the dielectric layer, wherein the dielectric layer is arranged on the rectangular waveguide; the wall of the rectangular waveguide is provided with a slot array formed by a plurality of slots at uniform intervals along the axis direction. The dielectric layer is added on the rectangular slot waveguide, and the electric field intensity of a working area on the surface of the rectangular slot waveguide is obviously improved; the divergence degree of an electromagnetic field is reduced; meanwhile, proper thickness and dielectric constant of the dielectric layer are selected, and the radiation intensity of a working area of a rectangular slot waveguide cable can be controlled. The rectangular waveguide can be applied to a communications based train control (CBTC) railway mobile communication system, the near field intensity on the upper side of the rectangular slot waveguide is improved, the space convergence of an electric field is improved, and the system has the best working condition.

The invention discloses a pay-off rack with the height conveniently adjusted for a cable. The pay-off rack comprises a bottom board. Two supporting boards are symmetrically arranged at the top of thebottom board. First through grooves are formed in the tops of the opposite sides of the two supporting boards. The top and the bottom of the inner wall of each first through groove are fixedly connected through a first sliding rod. The surface of each first sliding rod is in sliding connection with slide blocks. slide block Stabilizing blocks are arranged on the opposite sides of every two corresponding slide blocks. Through mutual cooperation of the first through grooves, the first sliding rods, stabilizing boards, first fixing blocks, first connecting shafts, connecting rods, second connecting shafts, second fixing blocks, sliding grooves, rolling runners, air cylinders, fixing boards, stabilizing shafts, second through grooves, rotary shafts, connecting grooves, second sliding rods andsliding blocks, the effect that the height is adjusted conveniently is achieved, the problem that the height of a pay-off rack cannot be adjusted conveniently can be solved, cable drums in different sizes can be placed on supporting frames, work efficiency is improved, and use of the pay-off rack is extremely convenient.

The invention discloses a rapid optimization method for a superconducting cable body structure, relates to the technical field of high voltage and insulation, and is used for solving the problem that time and labor are consumed due to the fact that a cable needs to be designed manually in the prior art. The method comprises the following steps: receiving performance parameters and structural parameters of the cold insulation high-temperature superconducting cable; according to the performance and structure parameters, calculating constraint conditions of the structure parameters of the superconducting cable body; calculating current distribution of a conductor layer and a shielding layer according to the performance and structure parameters; and according to the current distribution calculation result, the current sharing principle of the preset conductor layer and the shielding layer and the constraint condition, calculating the optimal solution of the structure parameters of the superconducting cable body through a particle swarm algorithm. According to the method, the structure parameters of the cold insulation high-temperature superconducting cable body are quickly optimized through the particle swarm algorithm, and manual participation in optimization design is not needed.

The invention discloses an automatic mold material taking device, which comprises an upper mold, a lower mold and a rotating arm, wherein the rotating arm comprises a support and a crossbeam, a rotating electric motor is arranged at the lower part of the support, a sucker is arranged at one end of the crossbeam, the other end of the crossbeam is connected with the support, the rotating arm is arranged between the upper mold and the lower mold, a starting switch is arranged at the front end of the lower mold, and the starting switch is connected with the rotating electric motor by a cable. By using the above manner, the automatic mold material taking device disclosed by the invention can improve the service life of the molds, is safe and reliable in work, and is simple and easy to operate.

The invention provides a removal method of outdoor hanging steps. The removal method comprises the steps of arranging a protective fence, and removing a step decorative surface of the top surface of a to-be-removed step; cutting off a cable and water, electricity and gas pipelines; reinforcing both ends of the to-be-removed step by adopting a steel pipe scaffold, and jacking the bottom of the to-be-removed step by adopting a jacking and a square timber on the top of the steel pipe scaffold; fixing a plurality of steel wire ropes for hoisting to the to-be-removed step, and connecting one end of each steel wire rope with hoisting equipment; cutting the both ends of the to-be-removed step by adopting cutting equipment, wherein a component on the upper part of the steel pipe scaffold is not broken; hoisting the to-be-removed step through hoisting equipment, and then placing the to-be-removed step on the ground; removing the to-be-removed step on the steel pipe scaffold in a crushing mode through a crusher; removing the steel pipe scaffold, and cleaning engineering garbage; and arranging a spraying machine and a watering cart so as to control flying dust of the construction phenomenon during removal. The removal method has the advantages of no damage to a main building, simplicity in operation, convenience in construction, high working efficiency and high safety.

The invention relates to the technical field of cables, especially to a super high-temperature resistant mobile cable for buggy ladle. The technical problem of the invention is as follows: during theuse process of the buggy ladle, due to the over-high temperature of molten steel, steel slag and the like, cables on a motor of the buggy ladle are often scalded; and due to high power of the motor, the cables bear considerable tensile force, and the cables will be broken in the long run. The super high-temperature resistant mobile cable for buggy ladle includes a pilot conductor and multiple power conductors. The multiple power conductors are wound on the outer side of the pilot conductor, and the multiple power conductors are equally-spaced in a circle. The pilot conductor and the multiple power conductors are externally coated with an insulating layer, which is coated with a filler. The cable of the invention has strong high temperature resistance, and can be entirely reinforced by using multiple tensile wires and a tensile layer to enhance tensile strength of the cable and effectively prolong service life of the cable. The cable of the invention has wide market promotion prospects.

The invention discloses a multi-machine interconnection cable laying system based on intelligent panoramic perception. The system comprises: a plurality of cable laying machines which are respectively located in different cable wells, and are used for conveying cables in a relay manner; and an information collection module and a coordination control terminal, wherein the information collection module can collect the working condition parameters of each cable laying machine in real time, the working condition parameters are transmitted to the coordination control terminal through a communication module so as to achieve the monitoring of the working states of the cable laying machines, and when the working condition parameter information collected by the information collection module does not meet a preset parameter threshold value, the coordination control terminal sends the optimized working condition parameters to the cable laying machines needing to be adjusted through the communication module, so that cooperative work of all the cable laying machines is guaranteed, and then the cable laying quality is improved.