30results about How to "Low power supply" patented technology

A device for controlling electric drives in machinery includes an electronic control unit for calculating in advance the electric power required by the at least one electric drive as a function of motion profiles of the electric drive. A printing material processing machine having the drive, is also provided.

The invention discloses a land-based array type high-energy laser antiaircraft method, in particular, relates to an antiaircraft defensing method for forming high-energy laser weapons by combining multiple land-based low-power laser emitter arrays, belongs to the technical field of laser antiaircraft weapons, and solves such defects as difficult production, use and maintenance, easy attack by enemies and incapability of quickly maintaining after attack caused by large size of a traditional high-energy laser weapon. Single laser weapon is formed by a small-lower laser generator and auxiliary equipment; multiple times of array combinations are performed for single laser weapon to finally form a national land-based laser weapon antiaircraft system; and the combined system can achieve high emitting power and low power supply power needed by single laser weapon, can realize operation of an accumulator spare unit, is low in total manufacturing cost and wide in antiaircraft range, can perform multi-array and multi-city unite antiaircraft, is low in operation and maintenance costs, is high in enemy destructive resistance, and is high in practicability.

The invention discloses a land-based array type high-energy laser weapon defensing method, in particular, relates to an antiaircraft defensing method for forming high-energy laser weapons by combining multiple land-based low-power laser emitter arrays, belongs to the technical field of laser antiaircraft weapons, and solves such defects as difficult production, use and maintenance, easy attack by enemies and incapability of quickly maintaining after attack caused by large size of a traditional high-energy laser weapon. Single laser weapon is formed by a small-lower laser generator and auxiliary equipment; multiple times of array combinations are performed for single laser weapon to finally form a national land-based laser weapon antiaircraft system; and the combined system can achieve high emitting power and low power supply power needed by single laser weapon, can realize operation of an accumulator spare unit, is low in total manufacturing cost and wide in antiaircraft range, can perform multi-array and multi-city unite antiaircraft, is low in operation and maintenance costs, is high in enemy destructive resistance, and is high in practicability.

The invention relates to a suspended type ultrafine dry powder extinguishing installation. In a suspended state, from top to bottom, the suspended type ultrafine dry powder extinguishing installation comprises a hanging ring, a pressure signal switch, a fire extinguishing agent storage tank, a heat-gathering cover, a spray head provided with a choke plug, a safe pressure relief device, a temperature sensing glass marble or a fusible element, an automatic starting device, and a set screw for fastening the temperature sensing glass marble or the fusible element, wherein the hanging ring is welded together with the fire extinguishing agent storage tank, the inside of the hanging ring is provided with a hole communicated with the fire extinguishing agent storage tank, the pressure signal switch is positioned in the hole, the heat-gathering cover is connected between the fire extinguishing agent storage tank and the spray head, the temperature sensing glass marble or the fusible element and the automatic starting device are positioned in the spray head, the temperature sensing glass marble or the fusible element is positioned in the automatic starting device, the upper part of the temperature sensing glass marble or the fusible element is connected with the choke plug, while the lower part is connected with the set screw, and the set screw is penetrated in the hole below the spray head. The suspended type ultrafine dry powder extinguishing installation has quick response, can sense a fire disaster in the smoldering stage, and need small feeding power.

The invention relates to a deoxyribonucleic acid (DNA) fragment amplification and quantitative detection system based on closed reactors, belonging to the technical field of molecular biology detection systems. The DNA fragment amplification and quantitative detection system comprises an amplification unit. A group of closed reactors are arranged in the amplification unit in a matching way. An exciting light device and a fluorescence detection device are arranged on one side of each closed reactor in a matching way. A transmission device which is used for providing power to the closed reactors is arranged at the bottom of the amplification unit in a matching way. The transmission device is connected with a motor. Two or more than two independent constant-temperature areas at different temperatures are arranged in the amplification unit in a matching way. By adopting the technique, the thermal response of reagent samples is improved, the polymerase chain reaction process is accelerated and the experimental period is greatly shortened; the degradation of DNA enzymes is reduced, the amplification sensitivity, accuracy and reproducibility of the samples are improved and the reagent detection linearity range is expanded; the pollution risk during experiments is reduced; the optical path is shortened and the sensitivity and the low background of optical detection are improved; and the low-cost multi-sample multi-channel detection is realized.

The invention discloses an axial foil-free diode composite guiding magnetic field system, which comprises an insulator, an anode cylinder, an annular cathode, a drift tube, a solenoid, a magnet column and a permanent magnet ring, wherein the solenoid, the magnet column and the permanent magnet ring are installed at the outer side of the drift tube in an enclosing mode; one side of the drift tube is provided with the annular cathode, and the other side of the annular cathode is connected with one end of the magnet column; and the other end of the magnet column penetrates through the permanent magnet ring and the insulator and is connected with the external part. According to the invention, stable and efficient transmission for electron beams in the axial direction is realized through using the permanent magnet ring, the solenoid and the soft magnet in a combination mode. In addition, the system disclosed by the invention is compact in structure, light in weight and low in power required to be consumed, and the generated magnetic field distribution can be adjusted conveniently.

An all-surrounding type large-scale cylinder section induction heating furnace mainly comprises a machine frame, a furnace lid, an upper end induction wire tube, wire clamps, partition plates, oil cylinder supports, double piston rod oil cylinders, double-piston rods, copper blocks, an outer wall induction wire tube, outer movable refractory walls, inner movable refractory walls, an inner wall upper end induction wire tube, an inner wall lower end induction wire tube, through holes A, power interfaces A, power interfaces B, cylinder sections, piston rods, oil cylinders, bearing platforms, a fixed base, a lower end induction wire tube, supporting rods, annular connecting rods, connecting rods A, connecting rods B and furnace walls. According to the all-surrounding type large-scale cylinder section induction heating furnace, the induction heating principle is utilized, fast heating of the large-scale cylinder section heat treatment process is achieved, and one-time heating time of the cylinder sections is shortened from tens of hours to 6-8 hours; the distance between coils and the inner walls of the cylinder sections as well as the distance between the coils and the outer walls of the cylinder sections can be adjusted flexibly, uniform heating of the inner walls and the outer walls of the cylinder sections is achieved, the power factor of an inductor is increased, and the required source power is decreased; and heating of the cylinder sections with different diameters and thicknesses is achieved.

The invention discloses an electrolyte applied to laser coupling microplasma arc oxidation of 7075 aluminum alloys. The electrolyte comprises the following components according to concentration: 1-30g / L of Na2SiO3, 0.5-10g / L of NaOH, 0.1-5g / L of Na2WO4, 1-20g / L of Na2Al2O4, 0.05-2.0g / L of La(NO3)3.6H2O, 0.5-10g / L of C10H14N2O8Na2.2H2O and the balance of deionized water. According to the electrolyte applied to laser coupling microplasma arc oxidation of 7075 aluminum alloys, a lot of experiments finally show that voltage and power of a micro arc oxidation power supply can be further reduced by adding sodium aluminate and lanthanum nitrate hexahydrate on the basis of the conventional micro arc oxidation electrolyte; oxidization ceramic layers with micro hardness being higher than 2000HV can be obtained by oxidizing under lower voltage being lower than 400V and lower power being lower than 120kW of the power supply.