38results about How to "Will not affect work performance" patented technology

The invention discloses a phase measurement compensation method for airborne interferometric SAR (synthetic aperture radar) based on synchronous internal calibration signals, effectively improves precision in interchannel error measurement and compensation and lowers the effect of calibration signals on radar performance. A calibration signal source is used to generate a phase modulated internal calibration signal; the phase modulated internal calibration signal is divided into N signals by a shunt, the internal calibration signal is combined with radar echo signal, received by an antenna, through a combiner, the internal calibration signal and the radar echo signal in the same path are synchronously input to corresponding receiving channels by controlling start time of the internal calibration signal; a matching filter is used to extract internal calibration signals from radar data of each receiving channel so as to separate the internal calibration signals from radar echo in an image field; processes of the phases of the receiving channels changing with time is calculated according to phase changes of the internal calibration signals; interchannel phase error measurement and compensation are completed according to phase change processes of the channels, and transmission error correction is complete.

The invention relates to an optical cable splitting box. The peripheral wall of a box body is hinged with one side of the outside wall of a box cover through a hinge; two press block gaps and sliding plate gaps which are opposite to each other are reserved on the box body; two optical cable pressing blocks of which the bottoms are provided with upper arc-shaped grooves are respectively plugged in the press block gaps to form optical cable holes; threading sliding plates are plugged in the sliding plate gaps; a pressing plate and more than one fixing seat are plugged in vertical guide rails of the threading sliding plates in turn from the top to the bottom; an L-shaped bottom plate is arranged on a box bottom plate of the box body; a supporting seat and a welding disk are arranged on the bottom plate; the bottom plate is provided with more than two cable locking rings as well as optical cable fasteners and a grounding bolt; one side of an intermediate overturning plate is rotatably connected with the bottom plate through a pin shaft; a mounting bracket, a tail optical fiber parking seat and a cable locking ring are arranged on the upper part of the intermediate overturning plate; and an optical branching device box is plugged in the mounting bracket or/and an intermediate bearing support through longitudinal guide plates on the two sides. The optical cable splitting box has the characteristics that: the structure is reasonable, the internal wiring route is clear, the optical cable splitting box is convenient to operate, and the optical branching device is flexible to configure.

The invention relates to a transformer rebreather structure which comprises a breather tank filled with drying agents. A breather tube connected with an oil line in a transformer via a pipeline is arranged in the breather tank and penetrates through the breather tank. The transformer rebreather structure is characterized in that the breather tube comprises an air guide section located in the breather tank and a free section located outside the breather tank, a one-way air valve is arranged in the free section of the breather tube, the air guide section of the breather tube comprises an upper air guide tube located on the upper side of the breather tank and a lower air guide tube located on the lower side of the breather tank, the upper air guide tube and the lower air guide tube are in sealed connection, a plurality of air guide holes are formed in the walls of the upper air guide tube and the lower air guide tube, a vent hole is formed in the bottom of the breather tank, and a rubber sealing cover is connected with the bottom of the breather tank via a reset spring. By means of the transformer rebreather structure, an oil cup structure is omitted, product operating performance is not affected during equipment transportation and installation, and normal operation is guaranteed.

The invention provides a capacitive charging current control circuit. The circuit comprises a circuit switch, a filter capacitor and a control circuit. One end of the circuit switch is connected with the ground, a positive plate of the filter capacitor is connected with a power supply, and a negative plate of the filter capacitor is connected with the other end of the circuit switch. The control circuit is connected with a control end of the circuit switch and sends control signals to control on resistance of the circuit switch. The circuit switch controlled by gate voltage is added between the filter capacitor and ground connection, thereby achieving the aim of controlling charging current of the filter capacitor, adding no more power consumption after a chip is started normally, and being not capable of influencing working performance of the filter capacitor.

An embodiment of the invention discloses a schottky diode manufacturing method and a Schottky diode. The method comprises: forming a GaN layer, a barrier layer and a passivation layer on a silicon substrate; at least etching the passivation layer to the barrier layer to form an anode contact hole; forming a dielectric layer, and etching the dielectric layer to form a thin anode dielectric, wherein the anode dielectric at least covers a part of bottom portion of the anode contact hole, and makes contact with the side wall of the anode contact hole; and filling metal in the anode contact hole to form an anode. The anode dielectric is formed at the edge of the anode; the anode dielectric reduces contact area of the metal and an AlGaN layer, that is, the area of a schottky junction is reduced, thereby reducing reverse leakage current of the Schottky diode; and besides, the anode dielectric also prevents electric leakage due to defect of the contact surface between the metal and the passivation layer, and thus reverse leakage current of the Schottky diode is further reduced.

The invention discloses a special motor control system for an intelligent channel system and a control method. The motor control system comprises a main control circuit, a motor driving circuit, peripheral equipment and a detection module, wherein the main control circuit comprises a DSP (Digital Signal Processor) and an FPGA (Field Programmable Gate Array) processor; the motor driving circuit comprises a driving module and a semi-axle circuit; the peripheral equipment is connected with the FPGA processor by a third I/O isolation module, and comprises an infrared sensing module, an access module and a clutch module; and the detection module comprises a temperature sensor, a current detection module and a position detection module. According to the invention, by monitoring for the position, speed and current of a motor, adoption of a closed-loop feedback technology with a high-resolution encoder as well as optimization of speed setting and a acceleration curve, the starting speed is high, the stoppage is smooth, and the mechanical noise is reduced, so that the special motor control system can be applicable to occasions with very-frequent passage.

The invention discloses a control method for reducing energy consumption. The method comprises the following steps: determining N valves needing to work in M valves, wherein N is an integer which is greater than or equal to 1 and smaller than or equal to M; judging whether N is greater than a first preset number value or not; if N is greater than the first preset number value, judging whether the first number value of to-be-excited phases in the N valves is greater than a second preset number value or not, wherein the first number value of to-be-excited phases is the total number value of to-be-excited phases in the N valves; and if the first number value of to-be-excited phases is greater than the second preset number value, controlling the N valves to start acting according to a first preset regulation. The invention further discloses a device and a refrigeration system which are used for realizing the method.

The present invention discloses a technique for recovering anchorage device and recoverable anchor rope in the civil engineering. Said invention is mainly characterized by that it utilizes cross pin placed between an external cylinder and an intermediate cylinder and inner bar placed in the interior of intermediate cylinder to attain the goal of implementing fixation and release between the intemediate cylinder and external cylinder so as to implement recovery and utilization of anchor rope and main anchorage device.

The invention relates to efflorescence-resistant concrete and a preparation method thereof, relating to the field of building materials. The efflorescence-resistant concrete is prepared from the following raw materials in parts by weight: 8-25 parts of cement; 60-90 parts of an aggregate; 2-6 parts of an admixture; 0.01-0.4 part of an acrylate functional agent, and 0.1-0.3 part of a water reducingagent; and water; wherein the acrylate functional agent is selected from acrylate monomers and/or acrylate polymers. According to the efflorescence-resistant concrete disclosed by the invention, theefflorescence phenomenon of the concrete can be effectively improved on the basis of not influencing the compressive strength of the concrete, and meanwhile, the construction performance is good.

The invention particularly discloses a single-motor-controlled large-range windscreen wiper structure. The single-motor-controlled large-range windscreen wiper structure comprises a motor, a mounting seat and a connecting rod, wherein a driving gear shaft and a driven gear shaft are arranged on the mounting seat; one end of the connecting rod is connected with the driving gear shaft, and the other end of the connecting rod is connected with the driven gear shaft; the motor is connected with the driving gear shaft; a first gear shaft and a second gear shaft are further arranged on the mounting seat; the driving gear shaft and the driven gear shaft are arranged between the first gear shaft and the second gear shaft; the driving gear shaft is in meshed transmission with the first gear shaft; the driven gear shaft is in meshed transmission with the second gear shaft; and windscreen wiper assemblies are connected to the first gear shaft and the second gear shaft correspondingly. The windscreen wiper structure is used for wiping and cleaning an optical lens and a light supplementing lamp lens on a radar, and it can be ensured that clear shooting of the lens rotating to work can be achieved in various weather and environments; and the windscreen wiper structure is compact in structure, convenient to install, small in occupied space, independent in overall structure and capable of being independently installed, the working performance of other modules on the radar cannot be influenced, and the wiping range is larger.

The invention provides refrigeration and heat exchanging equipment, and further discloses an air conditioner. The refrigeration and heat exchanging equipment comprises a first heat transferring loop and a second heat transferring loop, a refrigerant flows in the first heat transferring loop, and moisture absorption solution flows in the second heat transferring loop; the refrigeration and heat exchanging equipment further at least comprises a first heat exchanging region, a second heat exchanging region and a third heat exchanging region; the refrigerant flowing in the first heat transferringloop and the moisture absorption solution flowing in the second heat transferring loop are subjected to heat exchanging in the first heat exchanging region, the refrigerant after being subjected to heat exchanging flows into the second heat exchanging region to be subjected to heat exchanging with an air medium, and the moisture absorption solution in the second heat transferring loop and the airmedium are subjected to heat exchanging in the third heat exchanging region. According to the refrigeration and heat exchanging equipment, it can be ensured that when the small air conditioner adopting a liquid dehumidification mode is used under a high temperature and high humidity state, air exhausting sensible heat of a compressor can be subjected to heat exchanging in the mode of air-liquid heat exchanging, so that the air conditioner realizes dehumidification-regeneration circulation on the premise that additionally-arranged heat sources are not added, and has the high heat exchanging efficiency.

The invention relates to a tapered ned which comprises a tapered ned case and a plug. The plug is provided with a keyhole, at least two rows of pin tumblers which are arranged in the opposite way are arranged in the tapered ned case and the plug, the tail of the plug is connected with a driving piece. The keyhole is provided with a barrier structure which can prevent the unlocking tool from inserting and can prevent the torsion. As the key hole is provided with the barrier structure which can prevent the unlocking tool from inserting and can prevent the torsion, the thief cannot apply torsion to the plug through the keyhole; the groove for the pin tumbler in the plug does not form a step with the groove for the pin tumbler in the tapered ned, and thus the resistance to technical opening of the tapered net is considerably improved.

The invention discloses a laser driving open circuit detection method and a detection circuit, a driving circuit comprises a first triode and a second triode which can form a differential circuit, and the control ends of the first triode and the second triode are correspondingly connected with a first input end and a second input end respectively. One end of the first triode and one end of the second triode are connected to the first constant current source after being connected with a load ZL and a resistor Rterm respectively, the other end of the first triode and the other end of the second triode are connected to the second constant current source after being connected with a resistor R1 and a resistor R2 respectively, the output end of the second constant current source is grounded, and the laser is connected between one end of the second triode and the ground in parallel; the input voltage of the first input end and the input voltage of the second input end are equal and Itermgt; when Imod/2, the connection between the laser and the driving circuit is normal; on the contrary, when Iterm is smaller than or equal to Imod/2, the laser and the driving circuit are in an open-circuit state. The detection circuit has the advantages that normal work of the driving circuit is not affected, the judgment process is real-time and automatic, human intervention is not needed, and the detection circuit is simple in structure, easy to implement and low in power consumption.