32results about How to "No transmission loss" patented technology

The present invention is one kind of laser device. The small mechanical variable laser strength attenuator includes laser input unit; laser strength attenuating unit, laser output unit and control unit connected via optical path. Laser beam is projected via the laser input unit to the laser strength attenuating unit on the angle turning part of the control unit, its incident angle is regulated by the control unit, and the laser beam after being attenuated in the laser strength attenuating unit is output via the laser output unit. The present invention is used in optical communication, optical information processing and other fields needing laser strength attenuation as well as precise ranging, holographic information processing, etc.

The invention provides a television capable of supporting multiple digital television standards, wherein a central processing device transmits a passage selection signal and channel selection signals according to a current working state of the television; a first receiving device receives RF (Radio Frequency) signals of a first standard, and obtains an RF signal of a corresponding channel in the RF signals of the first standard according to a first channel selection signal and converts the RF signal into a first intermediate frequency signal; a first demodulation device demodulates the first intermediate frequency signal into a first transport stream signal; a second receiving device receives RF signals of a second standard, and obtains an RF signal of a corresponding channel in the RF signals of the second standard according to a second channel selection signal and converts the RF signal into a second intermediate frequency signal; a second demodulation device demodulates the second intermediate frequency signal into a second transport stream signal; a first switching device receives the transport stream signals according to the passage selection signal; a decoding device receives and decodes the transport stream signals and then outputs the decoded signals; a display device receives and displays the decoded signal; and an image treatment device connected between the decoding device and the display device is used for performing image enhancement treatment or scaling treatment to the decoding signals.

An accessory drive apparatus includes a power source, an accessory system that provides an input to the power source, an accessory driving source that drives the accessory system, and a power combination / distribution mechanism that is connected to the power source and the accessory system to transmit power from both the power source and the accessory driving source to the accessory system. With this arrangement, the accessory system is driven by a combination of power received from the accessory driving source and the power source.

A high-power fluorescent glass ceramic for illumination and display. The fluorescent glass ceramic has a composition of (1-x)A:xB, wherein x is the percentage of B by weight, and x ranges from 1 to 40%; A is glass matrix with a composition of aSiO2-bA2O-cZnO-dMO, wherein a, b, c, and d are all molar percentages, a + b + c + d = 100, A in A2O represents an alkali metal, M in MO represents alkaline-earth metal; and B is a YAG:Ce3+ phosphor. In the fluorescent glass ceramic, the glass matrix has a low remelting temperature and easily available raw materials with low costs, and is green and pollution-free. Combined with the YAG:Ce3+ phosphor, the glass matrix features high light conversion efficiency and excellent heat aging resistance.

The present invention discloses a Longmen n. broad width three-dimensional solid body laser inner carving apparatus with high speed which includes a machine body, a laser cooling device is set in the machine body bracket, an operation table-board is set on the machine body bracket, two Y axis moving support tramroads and a Y axis drive transmission device are set on two sides of the machine body bracket of the operation table-board, a X axis moving support tramroad and a X axis drive transmission device, which can move along the Y axis moving support tramroad, are connected between two Y axis moving support tramroads, a moving platform is connected with the X axis moving support tramroad, two Y axis moving support tramroads are equipped with transmission devices respectively, an input end of the transmission device connects with a servo-motor with synchronous operation, the moving platform connects with a Z axis moving tramroad and a Z axis moving drive transmission device, the moving platform also is equipped with a laser and a light route. The Longmen broad width three-dimensional solid body laser inner carving apparatus with high speed has compact and simple structure for realizing broad width inner carving with high speed, such as 1500*1000 mm, and can be widely used in the glass decoration industry.

The invention belongs to the field of electromechanical technology, and relates to a spherical mobile robot, in particular, to a fluid-driven spherical robot, which includes a spherical shell, an annular sealed container, an axial flow device, an internal drive rotation mechanism, and a main shaft; it is characterized in that: the spherical shell is composed of The left and right hemispherical shells are composed of two hemispherical shells; the annular sealed container is located inside the spherical shell, the outer ring surface of the container is concentric with the spherical surface of the spherical shell, and the fluid is contained inside the container, and the volume of the fluid is 1 / 2 of the volume of the container. The axial flow device drives the liquid to flow in the annular sealed container, thereby changing the center of mass of the spherical robot, thereby realizing the forward and backward of the spherical robot; the internal drive rotation mechanism located inside the spherical shell mainly includes: internal drive bracket, motor, Motor bracket, flywheel shaft, flywheel, power supply and controller, etc.; the main shaft is connected to the spherical shell through bearings, other parts of the internal drive rotation mechanism are suspended on the main shaft through the internal drive bracket, and the motor is fixed to the internal drive bracket through the motor bracket Connection, the flywheel is installed on the internal drive bracket through the bearing, the motor shaft and the flywheel are connected through the coupling, the motor drives the flywheel shaft and the flywheel whose lower part is perpendicular to the main shaft to rotate together, and realizes the steering of the fluid-driven spherical robot by using the principle of conservation of angular momentum .

Disclosed is a high-efficiency electric steering pump. An output shaft of the steering pump and an output shaft of a motor are of a coaxial structure. An oil feeding side plate, a stator and an oil drainage side plate are in through connection with a pump body through a positioning pin. One end of the pump body is provided with a pump cover. A rotor is installed in an inner hole of the stator. A blade is installed in a slot hole of the rotor. One end of a sliding valve is provided with a spring. A cone valve is arranged inside the sliding valve. A spring is arranged between one end of the cone valve and the sliding valve. The end, provided with the spring, of the sliding valve is connected with an oil drainage connector. According to the high-efficiency steering pump, a traditional transfer way of coupling connection of a coupling, a gear and the like is canceled, the output shaft of the steering pump and the output shaft of the motor are designed as one shaft, one end of the shaft is assembled to the motor, and the other end of the shaft is assembled to the steering pump. When a motor shaft is rotated, internal components of the steering pump are directly and synchronously driven to operate, work of the steering pump is achieved, and no transfer loss is caused in the operation. Besides the design characteristic that transfer efficiency is improved, the structure inside the steering pump, except for design parts of a bearing and a check ring is simplified.

The invention relates to a NMOS transistors based 90-degree phase shifter, which belongs to the technical field of the design of radio frequency microwave integrated circuits. The 90-degree phase shifter consists of an input end, a first second-order all-pass filter and a second second-order all-pass filter which are driven in parallel, a first output end and a second output end, wherein the first second-order all-pass filter comprises two NMOS transistors which are connected in series, a capacitor and two capacitors and resistors which are connected in parallel; and the second second-order all-pass filter comprises two NMOS transistors which are connected in series, a capacitor and two capacitors and resistors which are connected in parallel. The NMOS transistor based 90-degree phase shifter achieves 90-degree phase-shifting in a small area by using a CMOS process with low cost and low power consumption, and has the following two advantages that: firstly, the 90-degree phase shifter has no transmission loss and can adjust the gain thereof through an active element; and secondly, the 90-degree phase shifter is compatible with a standard CMOS process, and has low cost, low power consumption, high integration and wide working band.

The invention relates to a change-speed gearbox for motor vehicles, in particular manual gearboxes, having a plurality of forward gears and, optionally, one reverse gear, at least one input shaft, an output shaft and, optionally, a layshaft, between which the idler gears, which can be shifted via synchronous clutches, and the fixed gears of the gearwheel sets are arranged. At least one of the shafts (14; 16; 46) has a two-part design and is mounted in the transmission housing with mutually different axes of rotation, an annular gear stage (20) is functionally provided between the sub-shafts (14a, 14b; 16a, 16b; 46a, 46b) and comprises a internally-toothed annular gear (20a) and an externally-toothed spur gear (20b) that meshes therewith, the sub-shaft (14b; 16b; 46b) which has the larger axial distance (a1) to the other shaft (16; 14; 44) bearing gearwheels of the lower forward gears (1, 2) and, optionally, of the reverse gear (R).

The invention relates to a vaporizing arrangement. It preferably should be utilized in vacuum coating systems. The vaporizing arrangement comprises a two-part housing, namely a pan ( 3 ) and an associated lid ( 8 ), which is provided with the exit slot ( 16 ) for the material to be vaporized. Extending transversely above the pan ( 3 ) are several heating rods ( 5 ) which can be contacted on the outside and the radiant output of which heats the material to be vaporized, for example zinc sulfide, and causes it to vaporize. The arrangement is relatively simply constructed, can be easily disassembled, cleaned, and reassembled and can, if several arrangements of this type are combined, also be used for the uniform coating of very wide films.

The invention belongs to the technical field of compressors, and particularly relates to a two-stage compression water-cooling air compressor. The two-stage compression water-cooling air compressor comprises a compressor shell and a compressor body. The compressor body comprises a pneumatic system, a cooling system and an electronic control system. The pneumatic system comprises a high pressure cylinder, a low pressure cylinder, an engine oil cylinder and a filter. The output end of a motor is connected with one side of a crankcase. The high pressure cylinder and the low pressure cylinder are correspondingly connected with the crankcase and are further arranged in a V shape relative to the crankcase. The other side of the crankcase is connected with the engine oil cylinder. According to the two-stage compression water-cooling air compressor, traditional three-stage compression or four-stage compression is simplified into two-stage compression, the number of parts is decreased and the failure rate is lowered. By assisting in a forceful water-cooling system, the high temperature problem of a compression cylinder is solved, the technical requirements for core materials and parts are lowered, localized production is realized and cost is greatly reduced.

The invention belongs to the technical field of compressors, and particularly relates to a two-stage compression water-cooling air compressor. The two-stage compression water-cooling air compressor comprises a compressor shell and a compressor body. The compressor body comprises a pneumatic system, a cooling system and an electronic control system. The pneumatic system comprises a high pressure cylinder, a low pressure cylinder, an engine oil cylinder and a filter. The output end of a motor is connected with one side of a crankcase. The high pressure cylinder and the low pressure cylinder are correspondingly connected with the crankcase and are further arranged in a V shape relative to the crankcase. The other side of the crankcase is connected with the engine oil cylinder. According to the two-stage compression water-cooling air compressor, traditional three-stage compression or four-stage compression is simplified into two-stage compression, the number of parts is decreased and the failure rate is lowered. By assisting in a forceful water-cooling system, the high temperature problem of a compression cylinder is solved, the technical requirements for core materials and parts are lowered, localized production is realized and cost is greatly reduced.

The invention discloses a carbon fiber composite lead wire core, a preparation method thereof and a lead wire comprising same. The carbon fiber composite lead wire core comprises an aluminum alloy cylinder and carbon fibers which are uniformly distributed in the aluminum alloy cylinder and provided with silica coating. The lead wire core obtained in the invention is high in strength, has the tensile strength higher than that of a common steel core by about one time and higher than that of a high-strength steel core by 40%, is low in line loss and high in conductivity, has no magnetic loss thermal effect caused by a steel wire material, and has lower operating temperature under the condition of conveying the same load to reduce power transmission loss by about 6%, is small in sag, has significant low sag characteristics compared with a conventional lead wire, and high allowable working temperature, is high in current-carrying capacity, has the aluminum product section of the lead wire with the carbon fiber core being 1.29 times that of a conventional ACSR (Aluminum Conductor Steel Reinforced) under the condition of same quality, is light in weight, has the density of the carbon fibers and the aluminum alloy being 1.8 g / cubic centimeter and 2.7 g / cubic centimeter respectively, and corrosion resistant, with long service life.

The invention discloses a direct type high-efficiency and low-loss transmission assembly. It includes an assembly plate, a transmission shaft arranged on the assembly plate, and an input coupling transmitter and an output coupling transmitter respectively connected to the transmission shaft, and the output coupling transmitter is a transmission shaft connected to the corresponding output A universal joint coupling transmitter between the shafts, the input coupling transmitter is a universal joint coupling transmitter connected between the transmission shaft and the input shaft. This direct-type high-efficiency and low-loss transmission assembly has no chain or few or no gears in its variable-direction coupling transmission, which can meet the needs to the greatest extent, and truly achieve a constant instantaneous transmission ratio. .

The invention discloses an anti-interference NAVTEX receiver system. The anti-interference NAVTEX receiver system comprises an orthogonal antenna sub-system and an information terminal sub-system; theorthogonal antenna sub-system is connected to the information terminal sub-system; the orthogonal antenna sub-system comprises an orthogonal directional magnetic field antenna unit, four digital-to-analogue conversion units, a digital intermediate-frequency processing unit and a serial port sending unit; and the information terminal sub-system comprises a serial port receiving unit, a baseband signal processing judgement unit and a display control unit, wherein the orthogonal antenna sub-system and the information terminal sub-system are connected through a serial port differential twisted pair. According to the anti-interference NAVTEX receiver system disclosed by the invention, effective signals from a space are simultaneously received by adoption of orthogonal directional antennas, which are vertical to each other; interference receiving can be weakened; therefore, the receiving signal to noise ratio is increased; the receiving sensitivity is improved; the twisted pair is used fortransmitting baseband low-speed digital signals, and has the advantages of being long in transmission distance, free from transmission loss, high in anti-interference capability, low in cost and the like; flexible wiring can be realized; and environmental interference on the receiver system can be avoided to the most extent.

The invention provides a television capable of supporting multiple digital television standards, wherein a central processing device transmits a passage selection signal and channel selection signals according to a current working state of the television; a first receiving device receives RF (Radio Frequency) signals of a first standard, and obtains an RF signal of a corresponding channel in the RF signals of the first standard according to a first channel selection signal and converts the RF signal into a first intermediate frequency signal; a first demodulation device demodulates the first intermediate frequency signal into a first transport stream signal; a second receiving device receives RF signals of a second standard, and obtains an RF signal of a corresponding channel in the RF signals of the second standard according to a second channel selection signal and converts the RF signal into a second intermediate frequency signal; a second demodulation device demodulates the second intermediate frequency signal into a second transport stream signal; a first switching device receives the transport stream signals according to the passage selection signal; a decoding device receives and decodes the transport stream signals and then outputs the decoded signals; a display device receives and displays the decoded signal; and an image treatment device connected between the decoding device and the display device is used for performing image enhancement treatment or scaling treatment to the decoding signals.

The invention provides an electromagnetic inserting piece type concrete vibrator which comprises a horseshoe-shaped iron core and an excitation coil wound on the horseshoe-shaped iron core. The two magnetic poles of the horseshoe-shaped iron core both extend downwards to form two silicon steel pieces, and the excitation coil is electrically connected with an alternating-current power supply. The vibrator is free of work noise, low in cost, small in energy consumption, large in vibration action face and high in work efficiency.