99results about How to "No spark" patented technology

The invention discloses an orthogonal polarization optical fiber biological refractive index sensor and a detecting method thereof. The refractive index sensor includes a broadband light source, a polarizer, a polarization controller, a sensor probe and an orthogonal polarization demodulation processing unit which are sequentially connected with one another by optical fibers; the sensor probe includes a microfluidic control chip for control of injection and discharge of a trace biological solution, and tilted optical fiber optical gratings arranged in microfluidic channels of the microfluidic control chip; the orthogonal polarization demodulation processing unit includes an optical fiber polarization beam splitter, a first spectral detector, a second spectral detector and a spectrum differential module; the sensor probe is connected with the input ends of the first spectral detector and the second spectral detector through the optical fiber polarization beam splitter, and the output ends of the first spectral detector and the second spectral detector are connected with the spectrum differential module. The refractive index sensor has the advantages of high measuring precision of the refractive index, and can realize simultaneous measurement of environmental temperatures.

An electric brush for ABS (Anti-skid Brake System) comprises a brush body and a lead-out wire, wherein the brush body comprises 46 to 52 parts by weight of superfine electrolytic copper powder, 52 to 46 parts by weight of cementing powder and 2 parts by weight of modifier at; the cementing powder comprises 1.0 to 3.0 parts of high-purity carbon fiber powder, 23 to 27 parts of artificial graphite powder, 25 to 35 parts of high-purity sub-nanometer graphite powder, 18 to 22 parts of crystal graphite powder, 3 to 8 parts of graphitized carbon black powder, 2.5 to 4.5 parts of rare-earth tungsten disulfide composites and 5 to 15 parts of high-temperature resistant phenolic resin; and the modifier comprises 0.20 to 1.30 parts of vulcanization silver powder, 0.20 to 1.5 parts of stibonium powder and 0.5 to 1.5 parts of zinc powder. The chemical stability, the lubricating property, the electrical conductivity, the high-temperature resistance and the abrasion resistance of the electric brush provided by the invention are much better than that of the existing products.

The invention relates to a glass fiber reinforced plastic lighting fixture shell, belonging to the technical field of outdoor lighting fixture processing. According to the processing technology disclosed by the invention, organic glass fiber reinforced plastic substitutes for aluminium, aluminium alloy or magnesium alloy material, wherein the organic glass fiber reinforced plastic comprises the following raw material components: unsaturated polyester resin, polyester gel coat resin, roving checked cloth, a chopped fiber felt, a surface mat, a curing agent, an accelerating agent, a demoulding agent and a thin film. The processing technology of the glass fiber reinforced plastic lighting fixture shell comprises the following steps of: automatically inspecting a construction site, carrying out pre-treatment on a mould, selecting a reinforcing material, cutting the reinforcing material, selecting a polyester resin glue solution, preparing the polyester resin glue solution, carrying out gel coat construction, pasting, solidifying, and carrying out product inspection, thus the glass fiber reinforced plastic lighting fixture shell is obtained. The glass fiber reinforced plastic lighting fixture shell product disclosed by the invention has the advantages of corrosion resistance, flame retardance, light weight, high strength, ageing resistance, strong designability, safety, skid resistance, excellent electrical property, no magnetic property and safety in use in anti-electromagnetic anti-knock environment.

The invention discloses a coupling refractive index meter for an evanescent field among optical fibers and a detecting method of the coupling refractive index meter. The coupling refractive index meter comprises a light source, an optical fiber sensor probe, an optical fiber coupler / circulator, a first photoelectric detector, a second photoelectric detector and a data collecting and processing module, wherein the optical fiber sensor probe comprises an optical fiber engraved with inclined optical fiber gratings and a D-type optical fiber which are parallelly arranged and tightly closed; the light source is connected with one end of the optical fiber engraved with the inclined optical fiber gratings through the optical fiber coupler / circulator; the optical fiber engraved with the inclined optical fiber gratings is connected with the input end of the second photoelectric detector through the optical fiber coupler / circulator; one end of the D-type optical fiber is connected with the input end of the first photoelectric detector through a single mode optical fiber; one end, connected with the optical fiber coupler / circulator, of the optical fiber engraved with the inclined optical fiber gratings and one end, connected with the first photoelectric detector, of the D-type optical fiber are on the same side; the first photoelectric detector and the second photoelectric detector are separately connected with the data collecting and processing module. The coupling refractive index meter has the advantage of being higher in refractive index measuring accuracy.

The invention relates to a motor car wheel tread sweeper shape-repair grinding device and a preparation method thereof. The preparation method comprises: preparing the following raw materials by weight: 10-35% of a binder, 5-15% of nitrile butadiene rubber, 10-20% of carbon fiber, 5-10% of aramid fiber, 15-35% of a shape-repair aid, and 0-10% of graphite; adding the raw materials to a high speed plow harrow type material mixer in steps according to a certain ratio, mixing for 5-10 min, carrying out a reaction for 200-500 s in a molding mold at a temperature of room temperature to 150 DEG C under a pressure of 200-600 kg / cm<2>, and carrying out high temperature sintering on the molded grinding device for 5-20 h at a sintering temperature of 100-140 DEG C so as to obtain the motor car wheel tread sweeper shape-repair grinding device. Compared to the grinding device in the prior art, the grinding device of the present invention is used in the Changke standard multiple units, can significantly repair the wheel surface defects and the non-roundness, has characteristics of no undesirable phenomena such as cracks, hot spots, sparks, metal embedding, layering, shedding and the like, no damage to the dual, and good effect.

The invention relates to a thyristor phase switch testing device, the comprehensive microprocessor and thyristor technique are used in the device; the projection angle of switch is operated by the drive pulse phase of the thyristor. The device includes: host CPU, acquisition circuit of input-output signal, switch power supply, input-output interface, touching screen communication, upper machine communication, CPLD signal processing circuit, thyristor trigger circuit, power return circuit and thyristor; the electrical signal transitive relation is: the thyristor trigger circuit triggers the thyristor, the signal is transmitted to the acquisition circuit, processed by the host CPU, and separately transmitted to the touching screen communication, the upper machine communication and the input-output interface, the CPLD signal processing circuit and switch power supply provide power for the host CPU, thyristor and power return circuit, and the signal is output.

The invention discloses a polarization-maintaining fiber grating two-dimensional vector vibration sensor. The sensor comprises a broadband light source, a polarization control unit, a sensing probe and an orthogonal polarization demodulation unit, wherein the polarization control unit comprises a polarizer and a polarization controller, the sensing probe comprises an optical fiber probe, the optical fiber probe comprises a polarization-maintaining fiber grating and a cladding-fiber core energy re-coupling structure and is used for sensing the environment vibration information, the optical fiber probe is written in polarization-maintaining fiber, the cladding-fiber core energy re-coupling structure is welded through a polarization-maintaining / single-mode fiber core axial aligning mode, the orthogonal polarization demodulation unit comprises a filter, a polarization beam splitter, two photoelectric detectors and an orthogonal polarization vector synthesizer, and the polarization control unit, the sensing probe and the orthogonal polarization demodulation unit are connected through an optical fiber circulator or a coupler. By the aid of the mechanism, the two-dimensional vibration direction identification based on the single-optical fiber grating can be achieved. The mechanism has the advantages of being high in flexibility, compact in structure, low in cost and easy for network deployment.

The invention discloses an operation mechanism of a motor. The operation mechanism comprises an auxiliary electronic switch, a controller, an angle detecting unit, a voltage detecting unit, a current detecting unit, a serial communication interface, a display unit, a data storage unit and a control button. The angle detecting unit is used for detecting the rotating angle of an output shaft of a motor speed reducer. The auxiliary electronic switch comprises a signal processing circuit and a power amplifying circuit, and the signal processing circuit comprises a TTL open collector six-normal-phase high-voltage driver, a TTL open collector six-reverse-phase high-voltage driver and multiple power amplifiers. The TTL open collector six-reverse-phase high-voltage driver is connected with the TTL open collector six-normal-phase high-voltage driver, and the power amplifiers are connected with the TTL open collector six-reverse-phase high-voltage driver. The TTL open collector six-normal-phase high-voltage driver is connected with the motor control end of the controller. The power amplifying circuit comprises multiple sets of solid relays. The operation mechanism is simple in circuit, reasonable in design, convenient to wire, good in using effect and capable of solving various problems existing in an existing operation mechanism of the motor.

A SCR trigger circuit of continuous mousetrap belongs to the electric control technology field. At present, the deficiencies are widely existed in the mousetrap control circuits of the market, such as the lack of self recovery after the false triggering, the lack of self-stopping of the alarm sound, the low sensitivity, the large standby power and so on. The SCR trigger circuit is in the utilization of a SCR control motor to work. When a mouse touches the mechanical sensor, the triggering voltage is in conduction through the triggering of the occlusive mechanical sensor to the SCR, and the pulling tray is driven through the rotation of the motor to open. When the pulling tray is completely open, the closing contact of the normally closed switch in series connection in the power supply circuit is daffed, so that the SCR can be in cut-off due to the loss of power. The pulling tray is driven through a compression spring to be in self-closing, thus the SCR trigger circuit gets back to the standby status for the next mouse capture. The utility model has the advantages of self recovery after the false triggering, alarm sound self-stopping, high sensitivity, very low standby power, which can work with AC or DC power supply.

The invention relates to an intelligent pedestrian street crossing voice prompt device, characterized by comprising an alternating current electronic relay control module (1), a power source module (2), a voice integrated module (3), a two-path time control module (4), an electronic voice volume module (5), a power amplification module (6), a wireless receiving module (7) and a wireless transmission module (8), wherein (1) receives pedestrian traffic light signals and provides a stable voltage for (2), and simultaneously provides voice source control signals for (3) and controls (3) to supply a voice source for (5); (2) provides power sources for (4), (5), (6) and (7); one path of (4) controls (2), namely the on and off and time, and the other path of (4) controls (5), namely the conversion of high voice and low voice and time; the voice volumes of a low voice section and a high voice section are respectively manually set through a common potentiometer in (5) and remotely set through an electronic potentiometer; (8) can transmit wireless signals at the high voice section; (7) can receive wireless signals and decode the wireless signals, and controls (6) by (5) to realize voice volume control when pedestrian traffic lights work; and the system voice volume can be changed by 0-20dB along with external environmental noises via the automatic voice volume circuit in (5).

The invention discloses a water jet technology based anchor rope self-drilling and rapid anchoring construction method. The method comprises the following steps that an angle adjustable type drillingmechanism is adjusted so that a hollow anchor rope can face a preset drilling direction; a water jet generation device is connected with the rear end of the hollow anchor rope; the water jet generation device and the angle adjustable type drilling mechanism are started to do drilling work; after drilling work is completed, a rigid pipe is coaxially connected to the rear end of the hollow anchor rope, and the rigid pipe is mounted on the angle adjustable type drilling mechanism; a discharging opening of an anchoring agent feeding device is connected with the rear end of the rigid pipe; and theanchoring agent feeding device and the angle adjustable type drilling mechanism are started to do anchoring work on the hollow anchor rope in a drilled hole. In the drilling process, no heat is generated, no spark is generated, no dust is generated, safety is achieved, and noise is low; and meanwhile, the procedures of drilling rod drilling and rod retreating are omitted, operation is simple, andautomatic control can be achieved easily. An anchoring agent is blown in from a hole in the hollow anchor rope, and the problem that cartridge anchoring agents are hard to feed does not exist.

The invention discloses an automobile brake pad, and relates to the technical field of automobiles. The automobile brake pad comprises a steel sheet and a friction material layer bonded to one side of the steel sheet. The friction material layer is prepared from, by weight, 10-15 parts of nitrile rubber powder, 2-5 parts of potash feldspar powder, 20-40 parts of graphite, 2-6 parts of brown fused alumina, 1-6 parts of butyl n-butylbenzene, 0.5-2 parts of cumyl hydroperoxide, 0.5-2 parts of epoxy resin, 1-15 parts of boron phenolic resin, 1-15 parts of polypropylene, 6-10 parts of nylon powder, 5-10 parts of boron nitride, 1-2 parts of barium sulfate, 0.5-2 parts of bauxite, 0.5-2 parts of feldspar powder, 0.01-0.05 part of an accelerant and 0.01-0.05 part of an anti-aging agent. According to the automobile brake pad, the defects in the prior art can be overcome, and the automobile brake pad is free of pollution, noise and sparks, resistant to wear and long in service life.

The invention discloses an annular safety electric energy coupling middle end. The annular safety electric energy coupling middle end structurally comprises a JK alternating current receiving control port, a control connecting port, another control connecting port, an L1 annular magnetizer, an L2 annular magnetizer, an L1 input primary coil, an L2 output secondary coil, an L2 secondary output voltage port, an L2 secondary output public port, a D electric appliance, a DC storage battery, an alternating-current input device, an alternating-current output device, an S rectifying module, a K switch, a J control signal, an L1 isolator, an L2 isolator and an L2 secondary output alternating-current high-voltage port. According to the annular safety electric energy coupling middle end, no rope or connecting piece exists between a power supply side and a power consuming side, in this way, contact points, sparks, electromagnetic interference, elastic tension, screw fasteners, friction and contact heating are avoided, the middle end is waterproof, and using is safe and reliable.

The invention provides an intelligent emergency lamp for nuclear environment. The intelligent emergency lamp comprises a casing, a liner assembly, a lamp holder, an indicator lamp light passing assembly, a handle, a support plate, a wire inlet mouth, a wire outlet mouth and a circuit device, wherein the liner assembly mainly includes a liner, a rubber sealing strip, a storage battery protection cover, and a circuit board protection cover; the casing and the liner form a double-layer protection structure; the lamp holder and the handle are fixedly mounted on the support plate; the indicator lamp light passing assembly and the wire inlet mouth are mounted on the casing and the liner; and the circuit device is mounted in the liner. The circuit device includes an illuminating lamp, an on-off power supply, a storage battery, an alarm, a test button, an indicator lamp and a circuit board, wherein the an intelligent control circuit is arranged on the circuit board; and the circuit device can provide continuous emergency lighting for 8 hours or more through the illuminating lamp when the normal lighting is interrupted. The intelligent emergency lamp provided by the invention is resistant to impact, voltage, radiation, shake, moisture, and corrosion, has high on-off switching speed, and is convenient in detection and test by using a combined test button.

The invention provides a preparation method for an aluminum brazing organic flux. An alumina film can be damaged at the temperature of 180 DEG C-275 DEG C, deformation is small after the alumina film is welded, stabilizing and shaping is achieved, corrosion is avoided, corrosion to aluminum and aluminum alloy is very small, the welding temperature is far from the melting point of an aluminum material, the welding process is reliable, and the brazing qualified rate is greater than 98%. According to the technical scheme, 70 wt%-90 wt% of triethanolamine, 1 wt%-5 wt% of zinc tetrafluoroborate hydrate, 5 wt%-10 wt% of cadmium fluoroborate, and 5 wt%-10 wt% of ammonium fluoroborate are added; the zinc tetrafluoroborate hydrate, the cadmium fluoroborate and the ammonium fluoroborate are weighed at the room temperature and put into a mortar to be ground into fine powder, and grinding and mixing are uniform; the uniformly ground and mixed drug is poured into the weighed triethanolamine, and after being stirred uniformly, the drug is placed for a certain period of time. The welding problems of the aluminum, the aluminum alloy, aluminum bronze and aluminum brass at the temperature of 180 DEG C-275 DEG C are solved through the preparation method.

Disclosed is a CI-shaped safety electric energy coupling middle end. The CI-shaped safety electric energy coupling middle end structurally comprises a JK alternating current receiving control port, a first control connection port, a second control connection port, an L1 C-shaped magnetizer, an L2 I-shaped magnetizer, an L1 input primary coil, an L2 output secondary coil, an L2 secondary output voltage port, an L2 secondary output public port, a D electric appliance, a DC storage battery, a first alternating current input, a second alternating current input, an S rectifier module, a K switch, a J control signal and an L1 magnetizer. By the adoption of the technology, no rope or connecting piece is arranged between power supply and power utilization, hence, contacts, sparks, electromagnetic interference, elastic tension, screw fasteners, friction and contact heating can be avoided, waterproofing is achieved, and using is safe and reliable.

The invention relates to a stepless speed regulation device for controlling a direct-current motor for the aviation industry. A given integrator, a speed regulator, a current regulator, a trigger pulse generator and a silicon controlled rectifier are connected sequentially. The input end of a current regenerative feedback circuit is connected with the output end of the silicon controlled rectifier, and the output end is connected with the input end of the current regulator. A speed measurement feedback circuit for measuring the rotation speed of the motor is connected with the input end of the speed regulator. The device has the advantages that good starting, breaking, rotation and counter rotation and speed regulation performances are provided; large-range stepless speed regulation can be performed on the motor by changing the input voltage or exciting current of the motor simply, and accordingly, the motor rotation speed is stable, and arcs and electric sparks are avoided; the device is simple in structure, convenient to operate, small in own consumed power, low in operation cost and capable of being used in various complex environments.

The invention discloses an all-optical fluid mass-flow monitoring device and method. The device comprises a heating light source, a detecting light source, a first filter wavelength division multiplexer, a sensing unit and a spectral analytic apparatus. The sensing unit is in a composite structure of a single mode fiber, a photo-thermal fiber and a single-mode fiber; both the single mode fibers are provided with fiber gratings by carving, forming a Fabry-Perot cavity; the photo-thermal fiber forms a resonator. The method includes the steps: after the photo-thermal fiber of the sensing unit absorbs light emitted by the heating light source, the temperature rises and stabilizes after rising to a preset value; fluid to be detected flows by the sensing unit and brings away heat, and effective cavity length of the Fabry-Perot cavity changes, resulting in drift of interference peaks; drift distances of the interference peaks are detected, and current mass-flow of the fluid is obtained by data calibration. The all-optical fluid mass-flow monitoring device and method has such advantages as accurateness, sensitiveness, all-optical property, small size and safeness and is especially applicable to monitoring of flammable explosive fluids.

A miniature linear vibrator consists of a coil, a hill-shaped iron core, magnet steel, a vibration body, a jettison device and a quadrate housing. The hill-shaped iron core is arranged on the bottom in the housing, the coil is wound on the central shaft thereof, the two ends of the coil are led out through a lead, the vibration body and two pieces of magnet steel embedded in vibration body are arranged over the hill-shaped iron core, the magnet steel is just opposite to two hill-shaped recesses on the hill-shaped iron core, the vibration body is connected with the housing through the jettison device, and the magnetic poles of two pieces of magnet steel faces toward heteropole. The miniature linear vibrator has the advantages of simple structure, light weight, low manufacturing cost, long service life, and no spark and electromagnetic interference.

The invention relates to a grinding method with the application of the grinding wheel muller in the valve; wherein, the grinding wheel muller comprises a pneumatic motor, a drive rod, a grinding wheel plate, and a plurality of grinding wheel heads. The compressed air drives the pneumatic motor connected with the drive rod through the joint shaft; a driving bevel gear and a driven bevel gear arranged on the lower end of the drive rod are meshed with each other; the universal joint is connected with the grinding wheel on the external part of the body; the grinding wheel heads are arranged at both ends of the grinding wheel. The grinding method applied in the valve can be normally used in the condition of steam, water and wet, and cold grinding is not needed in the high temperature of 400 to 500 DEG C; online grinding can be used when the large valve leaks; grinding wheel heads and transmission regulate rods matched with the sealing surface can be assembled on valves with different specification, and repairing can be used when valve sealing surface leaks. The invention has the advantages of fast grinding, lower material cost, high grinding precision, simple operation, safety and reliability, low failure rate, long time continuous operation under any bad environment, and application for grinding on various valves.

The invention relates to the technical field of crop processing devices, in particular to a method for extracting corn straw modified fine fibers by a machinery-chemistry combined method. The method comprises the following steps: increasing the water content of corn straw crude fibers to at least 70% by a water soaking mode; draining off water, then carrying out fiber separation through a stacked-screw fiber rolling and separating machine, and separating the crude fibers into fine fibers through a mechanical method; placing the fine fibers in a biological purification machine, and removing saccharide small molecules which are located among the fine fibers and are attached to the surfaces of the fine fibers through sugar-loving microorganisms to obtain biologically modified fibers; inactivating the biologically modified fibers through a steam heating mode; then carrying out dehydration through a rolling dehydrator to obtain the corn straw modified fine fibers; and packing and transporting the corn straw modified fine fibers. The quality of the straw modified fine fibers is guaranteed, the separation efficiency is improved, and energy conservation and environmental protection are achieved. The invention further provides complete equipment which is used for extracting the corn straw modified fine fibers and has occupies a small area.

The invention discloses an electromagnetic pulse welding method of multilayer battery aluminum plate lugs and copper pole lugs. The aluminum plate lugs and the copper pole lugs are fixed on a welding device; the welding device comprises a rack; a cushion plate is arranged on the rack; an electromagnetic coil is arranged on the cushion plate; welding areas of the multilayer aluminum plate lugs are placed on the electromagnetic coil; the copper pole lugs are placed on the upper portion of the aluminum plate lug at the uppermost layer; interval pieces are arranged between the welding areas of the aluminum plate lugs as well as the welding areas of the aluminum plate lugs and the copper pole lugs; the aluminum plate lugs and the copper pole lugs are fixed through a pressing plate; the electromagnetic coil is connected with a capacitance switch of a capacitance power supply device; the capacitance switch is controlled by a pulse generator to be switched on and switched off; and the pulse generator is started to charge a capacitor of the capacitance power supply device, when the charging voltage reaches the set value, the capacitance switch is turned on, and the capacitor quickly discharges, so that welding of the battery aluminum plate lugs and the copper pole lugs is achieved. The welding efficiency is improved, the welding quality is improved, energy consumption is reduced, auxiliary materials are not consumed, and energy saving and environmental friendliness are achieved.

The invention discloses a VR virtual welding simulation practical training system and practical training method, and can solve the technical steps that a traditional welding training process generatessmog and sparks, and is serious in pollution, high in training cost and poor in safety. The system comprises a control cabinet, a VR head-mounted display and a welding gun, wherein the control cabinet comprises a touch screen and a host; the VR head-mounted display is connected with the host; the welding gun is provided with a laser position tracer; the laser position tracer is in communication connection with the host. The system also comprises a collection module, wherein the welding gun, the collection module and the host are connected in sequence; the collection module comprises a collection circuit and a single chip microcomputer; the collection circuit comprises a photoelectric coupler OPT300, an eight-bit tristate homodromous output bus buffer 74HC541D chip, a resistor R300, a resistor R301, a resistor R302, an indicator light LED300 and a filter capacitor CA300. The practical training system can accurately measure various kinds of operating information, help students convert welding skills into practical welding work, and can be cyclically used, so that the practical training system saves a lot of human and material costs and is safe and reliable.

The invention discloses a controllable active vibration source of a liquid carbon dioxide phase change type, and an application method thereof. A liquid storage pipe (4) is filled with liquid carbon dioxide, wherein one end of the liquid storage pipe (4) is connected with a liquid injection head (1), and the other end of the liquid storage pipe (4) is connected with one end of a safety valve. The other end of the safety valve is connected with a radiant energy head (11), and the interior of the liquid storage pipe (4) is provided with a heating rod (3). The heating rod (3) is electrically connected with an intelligent trigger (2). A micro-vibration sensor (6) is in communication connection with a micro-vibration detection system (7) through a signal fidelity box (5). The micro-vibration detection system (7) is in control communication with a control computer (10), and the intelligent trigger (2) is in communication connection with the control computer (10). The vibration source can be quickly installed, is convenient to use, and can reflect the information of a micro-vibration source well.

The invention provides a novel pen container, and relates to the field of stationery. The novel pen container comprises a pen container body and a screw; the pen container body is of a tubular structure; a notch is formed in the side wall of the pen container body; external threads are arranged on the screw; a chassis, a fixing disc and a gear are sequentially arranged in the pen container body from top to bottom; the fixing disc is disc-shaped; a screw hole is formed in the center of the fixing disc; internal threads are arranged on the inner side wall of the screw hole; one end of the screw is connected to the gear; the other end of the screw penetrates through the screw hole to be connected to the center of the chassis; a driving device is arranged in the pen container body and comprises a motor, a master gear and a chain; the motor is arranged at the bottom surface in the pen container body; the master gear is arranged on an output shaft of the motor; the gear is connected to the master gear through the chain; a pressure sensor is arranged on the top surface of the fixing disc; and a pressure displayer is arranged on the outer side wall of the pen container body and is electrically connected to the pressure displayer. The novel pen container has the advantages that a user can rapidly and conveniently fetch required shorter pens, and disassembly and assembly are convenient.

The invention discloses a Hall encoder-based travel sensor. The travel sensor comprises a metal tube made of nonmagnetic metal materials. A magnet ring that matches with the outer diameter of the metal tube is arranged on the metal tube in a sleeved mode. Multiple Hall circuit arrays are arranged inside the metal tube and connected with the main SCM (single-chip microcomputer) by means of each sub-SCM. The output terminal of the main SCM is connected with an operational magnification circuit which is connected with an outer lead wire. In addition, the invention also discloses a method which utilizes the Hall encoder-based travel sensor to measure the travel distance. The invention has the advantages of good security, high reliability and high resolution ratio, and low power consumption., the resolution ratio achieved by the invention is as high as 3 mm, much better than the prior reed switch, thereby largely improving the position resolution ratio. Taking the travel of 192 mm as an example, the overall consumption is less than or equal to 7mA. Moreover, the invention is intelligent so as to be capable of automatic correcting and dual-directional transmission of signals, which facilitates the intelligent management in the detection field.

The invention provides environment-friendly and energy-saving equipment with a purification device and a purification method. Almost electromechanical equipment, which is used at present, is not provided with a purification device of an oil mist separation system; particles with the size of 0.3 microns to 3.5 microns in oil mist in the electromechanical equipment are harmful to the health of human bodies when being inhaled by people; and the oil mist is deposited in a working region and accidents including occupational injuries and the like are easy to cause. The environment-friendly and energy-saving equipment comprises a base (1), wherein a groove is formed in the base; a motor (7) is mounted at the middle part in the groove; two tertiary filtering devices (6) are arranged on the side faces of the motor respectively; the front end of the motor is connected with a centrifugal impeller (9) through a connection shaft; a secondary filtering device (10) is arranged at the front end of the centrifugal impeller; a primary filtering device (11) is arranged at the front end of the secondary filtering device; and an oil mist suction inlet (2) is mounted on the front end face of the base. The environment-friendly and energy-saving equipment with the purification device is provided by the invention.

The invention discloses a micro-nano optical fiber photoacoustic detection device and a detection method thereof. The device disclosed by the invention comprises a red laser irradiation light source, and a tunable laser source, a micro-nano optical fiber photoacoustic sensor, a photoelectric detection unit and a digital storage oscillography unit which are connected in sequence through common optical fibers, wherein an object to be detected is arranged between the red laser irradiation light source and the micro-nano optical fiber photoacoustic sensor. The detection method disclosed by the invention comprises the following steps: submerging the device into de-ionized water in a glass container; putting the object to be detected in a focal distance range located just above the micro-nano optical fiber photoacoustic sensor, and starting the tunable laser source and the irradiation light source; by adopting a 360-degree rotary scanning manner for the micro-nano optical fiber photoacoustic sensor, detecting a photoacoustic signal for one time every pre-set angle; carrying out photoacoustic signal reconstruction by the photoelectric detection unit through directly detecting strength information of transmission light. The device and the detection method, disclosed by the invention, have properties of high linearity and high responding sensitivity.

The invention discloses an intelligent energy-saving management system. The system comprises a control center, the control center is connected with multiple relay nodes through a network coordinator and a node manager; each relay node is corresponding to one room; a sensing module and an intelligent control module are arranged in each room; the sensing module receives a signal from the corresponding relay node through a network or data line way, and performs the setting, and the sensing module converts the acquired information in the room into a signal to send to the intelligent control module. By controlling working states of an intelligent socket and the connected electric equipment under a state that the people is existent or inexistent, the relay is used for issuing a power on / power off strategy under the intelligent socket, the automatically managed equipment is in standby and power outage, thereby realizing the drop energy-saving and add up low-carbon and environmentally-friendlyconcept, the energy consumption of the comprehensive building can be reduced, and the operation cost of the comprehensive building is saved, the service life of the electric equipment can be prolonged, thereby realizing the maximum of the economic benefit.

The invention discloses a wireless charging trolley system, which includes a transmitting module, a receiving module and a monitoring control module. The transmitting module and the receiving module are connected with the monitoring control module. The transmitting module includes a power supply module, a driving circuit module, an inverter module and a transmitting coil. The power supply module is connected with the driving circuit module. The driving circuit module is connected with the inverter module. The inverter module is also connected with the transmitting coil, and is used for generating high-frequency alternating current in the transmitting coil. The receiving module includes a receiving coil and a rectifier and filter module. The receiving coil is connected with the transmittingcoil. The rectifier and filter module is connected with the receiving coil, and is used for charging a rechargeable battery after rectifying and filtering the data of the receiving coil. By chargingthe trolley through the wireless charging technology, the problem that there is a need to move the charging equipment and the power lead is too long in wired charging is avoided, and the problem thatthe common floor area of the charging station and the charging equipment is too large in wired charging is solved.