229results about How to "Convenient speed control" patented technology

The invention discloses a trajectory tracking control method used for an automatic driving robot of a vehicle, which relates to electronic control technologies of vehicles. The desired trajectory of a vehicle is described in a data point mode to obtain the current position information of the vehicle; humanoid driving is carried out according to the current driving direction at the current vehicle position to preview a distance ahead; the position obtained by previewing is compared with the desired trajectory to determine the lateral position deviation, the angle deviation and the vehicle speed deviation of the coordinate position obtained by previewing relative to the desired trajectory; then, the vehicle direction is jointly controlled by a trajectory tracking and speed controller according to position deviation and direction deviation; and according to vehicle speed deviation, the control quantities of an accelerator pedal and a brake pedal are determined with a fuzzy control method. The trajectory tracking control method is suitable for controlling the trajectory tracking of any trajectory, various vehicle types and various working conditions, and an automatic driving robot performs the control. The trajectory tracking control method has high precision and good repeatability and has an important meaning for guaranteeing the quality of vehicle reliability experiments and improving experiment safety.

The invention discloses a counterweight load system on fitness equipment. The counterweight load system comprises a fitness device support, a tensile force cable, a motor, a motor driving module and a motor control unit. The motor is installed on the fitness device support and can rotate, the tensile force cable is wound around the motor, one end of the tensile force cable is connected with a rotor of the motor, and the other end of the tensile force cable is connected with a force driving mechanism on the fitness equipment. The force driving mechanism is used for driving the motor to rotate through the tensile force cable so as to generate tensile force, and the motor control unit controls the motor to rotate in the reverse direction through the motor driving module and makes the motor generate loading capacity opposite to the tensile force. The counterweight load system on the fitness equipment is simple in structure and light, and the stepless regulation of the counterweight is performed.

The invention discloses a permanent-magnetic speed regulator, which comprises a first shaft, a second shaft, a cage rotor and permanent-magnetic turntables. A permanent-magnetic rotor comprises two disk permanent-magnetic turntables and a central turntable, wherein the central turntable is connected with the second shaft, and the permanent-magnetic turntables are connected with the central turntable through a pin shaft and a gear rack device; and the gear rack device comprises racks vertically arranged on the permanent-magnetic turntables and a gear arranged on the central turntable, the racks are engaged with the gear, and the gear rack device enables the two permanent-magnetic turntables to do reverse equidistance motion along the shaft. The double-cylindrical turntable permanent-magnetic speed regulator has large coupling face by replacing cylindrical and planar double coupling for single-side coupling, and realizes non-contact transmission of power with large transmission torque; the permanent-magnetic turntables can move along the axial direction to change the distance from a conductor plate and the effective part engaged with a conductor cylinder so as to change the torque transferred between the permanent-magnetic turntables; and the permanent-magnetic speed regulator can realize repeatable, adjustable and controllable output torque and rotational speed and fulfill the purposes of energy-saving speed regulation, and has balanced axial force.

The invention discloses a comprehensive simulation experiment system and a comprehensive simulation experiment method for an engine front-end wheel train. The experiment system comprises an engine front-end wheel train comprehensive simulation experiment system test bed and an engine front-end wheel train comprehensive simulation experiment system control console, wherein the engine front-end wheel train comprehensive simulation experiment system test bed comprises a fixed panel (21); the engine front-end wheel train is arranged on the fixed panel (21); the rear end of an engine belt wheel shaft is connected with a main motor (24); the rear end of a load belt wheel shaft is connected with a power simulator (25); the engine front-end wheel train comprehensive simulation experiment system control console comprises a case (1) and a control system; the front of the case (1) comprises a control panel; and the control system comprises a personal computer (PC) host and a controller. The invention has the advantages that: various performance parameters of the engine front-end wheel train of an automobile under a working state can be obtained; the measured parameters are comprehensive, andthe measurement precision is high; furthermore, the test bed is high in integration property, and is convenient to mount and maintain.

The invention relates to a control method of the hydraulic system of a fuel tanker, which controls a motor driving a positive displacement pump in the hydraulic system by controlling operating frequency and comprises the steps of a detection stage: detecting an input voltage signal; an operating stage: operating according to preset frequency corresponding to the voltage signal when the detection result shows that one input voltage signal exists, and operating according to the preset frequency corresponding to the input voltage signal with high priority level when the detection result shows that two input voltage signals exist. The method and the device realizing the method realize the rotating speed regulation of the positive displacement pump by changing the rotating speed of the motor driving the positive displacement pump through continuously changing the power frequency, thus leading the fuel tanker to operate in a best working condition, improving the energy utilization rate and reducing the energy loss.

The invention relates to a cylindrical-turnplate permanent magnet speed controller, which comprises a first shaft and a second shaft; the first shaft is provided with a common-bottom double-cylinder steel turnplate, and an inner conductor cylinder and an outer conductor cylinder which are opposite to each other are arranged in an inner cylinder and an outer cylinder; the second shaft is provided with an additional shaft, a bushing and a permanent magnet turnplate, the bushing is connected with the additional shaft through splines, the permanent magnet turnplate is a single cylinder, and is made of nonferromagnetic material, the cylinder is provided with a circle of permanent magnets, the polar directions of which are perpendicular to the axial line of the turnplate, neighboring magnets are heterospolarly mounted, and the cylinder is arranged between the inner and the outer conductor cylinders; and an adjusting mechanism which comprises an inner round sleeve and an outer round sleeve is arranged outside the additional shaft and the bushing. Since the speed controller adopts cylindrical coupling to replace planar coupling, axial force does not exist, the coupled surface is large, moreover, the permanent magnet turnplate can axially move, the effective engaged parts of the permanent magnet turnplate and the conductor cylinders are changed, so that the torque transferred between the permanent magnet turnplate and the conductor cylinders can be changed, consequently, repeatable, regulatable and controllable output torque and rotation speed can be obtained, and energy can be saved in the process of speed regulation.

This invention relates to non-contact micro rotor vibration displacement laser measurement in the micro machine technique field. This invention uses radio ejector to send laser band to scan the micro rotor movement status, wherein, the micro rotor high speed track is collected by CCD displacement sensor and image collector card to get the vibration signals by image process technique. The invention adopts hardware system in charge for micro rotor high speed rotation to realize stable control and vibration image signal collection ad adopts software system to process the image signals to extract characteristic points to get the movement track from the fix points of rotor.

The invention discloses a compound-type aluminium alloy frication-stir-welding main shaft. According to the compound-type aluminium alloy frication-stir-welding main shaft, an external three-phase power supply is used for driving a motor shaft by a motor stator and a motor rotor; a rotary shaft is driven by a shaft coupler connecting shaft pin to rotate, and a pumpback shaft is driven by the connecting shaft pin to rotate simultaneously; the pumpback shaft is enabled to slide up and down by virtue of the pressure difference between an upper air cavity and a lower air cavity formed by the rotary shaft and the pumpback shaft; a key slot remained by frication-stir-welding is eliminated by the pumpback of a stirring needle, and the main shaft is enabled to slide up and down to control the insertion depth of the stirring needle by virtue of a rack key slot structure at the periphery of a shaft sleeve simultaneously; a stirring head is in threaded fit and replaced in time. The compound-type aluminium alloy frication-stir-welding main shaft is reasonable in structure, controllable in rotational speed and good in hollow air-cooling heat dissipation; the pumpback of the stirring needle is controlled by an air pressure, the main shaft is capable of lifting, the key slot is eliminated, the equipment is simplified, the occupied space is less, and the cost is low.

The inverter comprises a diode bridge (21) that rectifies an inputted three-phase AC voltage into a DC voltage, an inverter section (22) that converts the DC voltage converted by the diode bridge (21) into an AC voltage and outputs the resulting voltage, an LC filter that has an inductor Ldc connected between one output terminal of the diode bridge (21) and one input terminal of the inverter section and a capacitor Cdc connected across the input terminals of the inverter section, a voltage detecting section (24) that detects cross terminal voltage of the inductor Ldc, and a control section (100) that controls the inverter section (22). The control section (100) controls the inverter section (22) so that the transfer characteristic of the I / O voltage of the inverter section (22) becomes a characteristic of the first-order lag system on the basis of the cross terminal voltage of the inductor Ldc detected by the voltage detecting section (24).

The invention discloses a device for efficiently preparing superfine spherical metal powder with a high melting point. The device comprises a shell, and a crucible and a powder collecting area which are arranged in a chamber of the shell, and is characterized in that a plurality of melting pools with the same volume are formed inside the crucible, and gaskets with small holes which are communicated with the chamber are fixed at the bottoms of the melting pools; a transmission rod comprises transmission support rods with the number the same as that of the melting pools, and the bottoms of the transmission support rods are aligned with circular holes in the gaskets with small holes; a thermocouple is arranged inside the crucible, and an induction heater is arranged outside the crucible; and the powder collecting area comprises a rotating disk which is used for atomizing metal droplets and is arranged at the bottom of the chamber and connected with a motor, and a collecting tank is also formed in the bottom of the chamber. The invention also discloses a method for efficiently preparing superfine spherical metal powder with the high melting point. By mainly combining a pulse micropore injection method with a centrifugal atomization method, the method can be used for preparing superfine spherical metal powder which is narrow in particle size distribution interval, high in sphericity, good in spreadability and liquidity, and high in production efficiency, and meets the 3D printing and using requirements.

The invention discloses a friction performance testing device for a slipper pair of a high-pressure axial plunger pump. The left and right sides of a box body are respectively provided with a high-pressure oil chamber and a sealed experiment chamber; the left and right ends of the box body are respectively provided with a left end cover and a right end cover of the box body; the high-pressure oil chamber is internally provided with a thrust piston; the end part of a piston rod of the thrust piston is arranged in the sealed experiment chamber and is connected with a slipper for testing through a connecting bolt; a swash plate stationary shaft is arranged on the right end cover of the box body; one end of the stationary swash plate shaft is arranged in the sealed experiment chamber, and a swash plate for testing is connected to the end through a bolt; and the other end of the swash plate stationary shaft is connected with a variable-frequency motor through a shaft coupling, and the variable-frequency motor is controlled by a frequency converter. By using the friction performance testing device, not only can the dry friction performance of the slipper pair of the high-pressure axial plunger pump be tested, but also different working states can be simulated to test. The friction performance testing device has the advantages of simple structure, convenience in use, accuracy in testing, low manufacturing and using costs and the like.

A fatigue strength test stand of a locomotive bogie is as follows: drive eccentric shafts of a front drive eccentric wheel and a back drive eccentric wheel are fixed on one side of the bogie through a bearing and a bearing seat; driven eccentric shafts of a front driven eccentric wheel and a back driven eccentric wheel are fixed on the other side of the bogie through a bearing and a bearing seat; the front and the back drive eccentric shafts are respectively connected with a drive device. The test stand can simulate the vertical vibration, the transverse vibration, the nodding and the compound vibration of the bogie in full range so as to truly measure the fatigue life of the bogie, thereby determine the life cycle, and providing reliable guarantee for the safe operation of the locomotive. The test stand has the advantages of simple structure and convenient operation.

The invention provides a permanent-magnetic drive speed adjustor, which comprises a first shaft, a second shaft and an extension shaft, wherein the second shaft is connected with a permanent-magnetic turntable; the first shaft is connected with the extension shaft; the extension shaft is provided with a bearing, a shaft sleeve and an outer sleeve and connected with a cage-shaped rotor; the cage-shaped rotor consists of turntables, and two conductor discs are arranged on two sides of the permanent-magnetic turntable; the left small turntable is fixedly connected with the left conductor disc, the left second turntable is provided with a gear, and the two conductor discs are provided with a rack respectively; the right conductor disc is provided with a pin shaft which passes through the left conductor disc and penetrates the left second turntable; the conductor discs on two sides realize synchronous reverse equidistance motion through a gear and rack mechanism; and the first shaft and the second shaft can be connected with a motor or a load. The permanent-magnetic drive speed adjustor has the advantages of realizing non-contact power transfer of power, reducing vibration, starting the motor without load, changing the torque transferred between the conductor disc and the permanent-magnetic turntable, and repeatedly, adjustably and controllably outputting the torque and the rotational speed to fulfill the purposes of speed adjustment and energy conservation.

The present invention discloses a novel permanent magnet speed regulator using a rotary salient pole to adjust magnetic flux. The novel permanent magnet speed regulator comprises a driving shaft and a driven shaft, the driving shaft is fixedly equipped with a cylindrical conductor rotor, and a permanent magnet rotor of which one end is fixed to the driven shaft is arranged in a chamber formed by the cylindrical conductor rotor. Moreover, a radial gap exists between the permanent magnet rotor and the cylindrical conductor rotor, a ratchet wheel sleeve rotating together with the driven shaft and a salient pole magnetic conductive magnet yoke capable of rotating relatively on the ratchet wheel sleeve are arranged at the lower part of the other end of the permanent magnet rotor, and a plurality of tangential permanent magnet magnetic steels are arranged in the permanent magnet rotor at equal intervals. According to the present invention, the problem that a conventional cylindrical permanent magnet speed regulator adjusts the relative positions of the permanent magnet rotor and the cylindrical conductor rotor in an axial direction to reduce the large the occupied space of an effective part of the coupling area of the permanent magnet rotor and the conductor rotor is avoided, an additional axial space is not needed, and an adjusting mechanism, such as an additional complicated cylinder is also not needed, so that the whole speed regulator is more compact and reasonable in structure, and a transmission torque under the same size is improved substantially.

A miniature pig running machine belongs to the technical field of animal training or exercise equipment. The invention provides a miniature pig running machine having the advantages of good protective properties and reliability, convenient observation and easy operation. The running machine comprises a supporting framework, wherein the front end of the bottom of the supporting frame is provided with wheels, and the back end is provided with adjusting supporting feet; the front end of the top of the supporting frame is provided with a motor cover and an upright pole, the upright pole is provided with an instrument operation display panel, the back end of the motor cover is provided with a Z-shaped baffle, a lower end horizontal plate of the Z-shaped baffle is pressed under the lower end face of the motor cover, an upper end horizontal plate of the Z-shaped baffle is located above the upper end of the motor cover, and the horizontal size of the Z-shaped baffle is greater than or equal to the horizontal size of the motor cover; and the supporting framework at the back end of the Z-shaped baffle is provided with an internally visual closed body which is provided with the back end having a folding door, the supporting framework at the lower end of the closed body is provided with a running belt in the length direction of the closed body, and the width of the running belt is greater than or equal to the width of the closed body.

A sample solution introduction kit and a sample solution injector capable of introducing sample solution while reducing the rate of occurrence of an air bubble and having a simplified structure are proposed.A sample solution introduction kit includes a plate-like member and a sample solution injector. The plate-like member has a plurality of spaces formed therein and serving as reaction field and a communication space that communicates with the plurality of spaces therein and that has a portion defining an opening formed in a surface of the plate-like member, and the sample solution injector includes a container containing the sample solution, a tube that communicates with the bottom of the container and that is insertable into the opening, a stopper removably fitted into an opening formed at a top end of the tube, and liquid held in the container, and the liquid is insoluble in the sample solution and is lighter than the sample solution.

The invention relates to an end face polishing and beveling machine of an optical element, relating to an end face polishing and beveling machine, which is simple in structure and is capable of obviously improving the work efficiency. The end face polishing and beveling machine is provided with a machine tool main body, a polishing device and a beveling device; the machine tool main body is provided with a frame seat, a guide rail, a guide rail sliding block, a limit arm, a gantry arm, a gantry arm sliding block, a first electric motor, a first belt wheel pair, a grinding disc, a guide plate, a flow-limiting ring and an operation panel; the polishing device is provided with a supporting rack, a hand wheel, a lifting screw rod, a main shaft, a main screw rod, side screw rods, an end face clamping plate, side clamping plates, a second belt wheel pair and a second electric motor; and the beveling device is provided with a bottom board, a spring, a workpiece rack, a pawl and ratchet wheel mechanism, an eccentric wheel, side pressure plates and a top pressure plate.

The invention relates to a reduction gear and a control method thereof. The reduction gear comprises a servo motor and a reducing mechanism connected with the servo motor, the reducing mechanism comprises a driving part and a driven part mutually matched, and the servo motor is connected with the driving part through a coupler. The driving part and the driven part are matched to input the power of the servo motor and output the power after reduction. An input shaft of the servo motor and an output shaft of the reducing mechanism are respectively provided with a first detecting device and a second detecting device, the first detecting device and the second detecting device input signals to a servo controller, the servo controller controls the servo motor to drive the reducing mechanism so as to input the power of the servo motor and output the power after reduction. The reduction gear has low cost, high control precision and quick response; the torque and the rotating speed are controllable; networked and integrated control is conveniently realized; and instructions of a main controller can be received, and the operation of a mechanical arm is controlled in a closed loop mode.

The invention relates to a permanent magnet speed governor. A first shaft is provided with a single-layer edge cylinder conductor turnplate, and a second shaft is connected with a single-layer edge cylinder permanent magnet turnplate, wherein the permanent magnet turnplate is in the conductor turnplate; an annular conductor plate and a conductor cylinder are arranged in the conductor turnplate; the edge cylinder of the permanent magnet turnplate is provided with an outer permanent magnet ring and an inner permanent magnet ring; a gap is preserved between the conductor plate and the inner permanent magnet ring, and a gap is also preserved between the outer permanent magnet ring and the conductor cylinder; and a regulating mechanism mainly comprising a shaft sleeve, an addition shaft, an inner circle sleeve and an outer circle sleeve is arranged between the second shaft and the permanent magnet turnplate. The cylindrical turnplate permanent magnet speed governor replaces single-surface coupling by cylindrical and planar dual coupling and has a big coupling surface, and thereby, the non-contact transfer of the power is realized, and the transfer torque force is big; moreover, the permanent magnet turnplate can move along the axial direction, the transferred torque between the conductor plate and the conductor cylinder can be changed as long as the distance between the permanent magnet turnplate and the conductor plate and an effective part meshed with the conductor cylinder are changed; the permanent magnet speed governor can realize repeatable, regulable and controllable output torque and rotating speed to achieve the goals of speed regulation and energy saving.

The invention discloses a permanent magnet speed regulator. The permanent magnet speed regulator comprises a barrel-shaped conductor rotor, a permanent magnet rotor and a magnetic conductive yoke which are coaxially arranged, wherein the permanent magnet rotor is positioned in an inner cavity of the conductor rotor; a radial air gap is formed between the permanent magnet rotor and the conductor rotor; the magnetic conductive yoke is positioned at the outer side of the permanent magnet rotor and can axially move; the magnetic field strength of the radial air gap can be adjusted by adjusting the distance from the magnetic conductive yoke to the permanent magnet rotor. According to the permanent magnet speed regulator, the magnetic conductive yoke can be moved to adjust the torque and the rotating speed; the required axial space is greatly reduced by being compared with the traditional barrel-shaped permanent magnet speed regulator; in addition, the magnetic flux of the radial air gap can be adjusted through the magnetic conductive yoke with small effect force; the problems of large axial space, complex speed regulating mechanism and large acting force of the traditional barrel-shaped permanent magnet speed regulator can be solved.

The invention provides a braking system and a braking method using the braking system. The braking system and the braking method can improve the effective utilization rate of a wind driven generator and reduce risks caused by the impact to the whole braking system. The braking system comprises a generator, a mechanical braking portion, an electromagnetic braking portion and a controller, wherein the generator is used for converting rotating kinetic energy of a wind wheel into electric energy and outputting the electric energy through a three-phase armature winding, the mechanical braking portion is used for braking the generator in a mechanical mode, the electromagnetic braking portion conducts electromagnetic braking by causing a short circuit of the three-phase armature winding of the generator, and the controller is used for controlling the mechanical braking portion and the electromagnetic braking portion. The braking system further comprises a current detection portion which is used for detecting a current value of any phase of the three-phase armature winding and providing the detected current value for the controller.

The invention discloses a disk-type permanent magnetic speed regulator. The disk-type permanent magnetic speed regulator comprises a first shaft and a second shaft which are coaxially arranged in a split mode. The end of the first shaft is connected with sliding blocks and conductor disks through a speed regulation mechanism. The conductor disks are made of materials with good conductivity. The end of the second shaft is connected with a permanent magnetic rotary disk through a load connecting disk. Permanent magnets are mounted on the permanent magnetic rotary disk and are arranged between the conductor disks. According to the disk-type permanent magnetic speed regulator, the structure of a permanent magnetic rotor is simplified, and the disk-type permanent magnetic speed regulator is only provided with one permanent magnetic rotary disk, so that the weight of the permanent magnetic rotor is greatly reduced on the basis of achieving air gap regulation, and the permanent magnetic rotor is more stable in the rotating process; consequently, mechanical friction and mechanical abrasion are reduced, interference of vibration is avoided, loss of transmission components is reduced, vibration is isolated, and noise is lowered; meanwhile, the disk-type permanent magnetic speed regulator is easy to install and debug, free of precise centering, capable of allowing a certain axial movement, and capable of changing output rotating speed and achieving the purposes of speed regulation and energy conservation through the design of two kinds of speed regulation mechanisms, and the size of air gaps can be controlled more accurately.

The invention relates to a hemodialysis system. In the hemodialysis system, a water supply end joint is connected with a liquid inlet joint of a water inlet pot, and a liquid outlet joint of the water inlet pot is connected with an inlet of a throttling member; the outlet of the throttling member is connected with the inlet of a first gear pump, the outlet of the first gear pump is connected with a heater in series and then connected with a liquid inlet joint of a separation pot, and a first liquid outlet joint of the separation pot is connected with a backflow joint of the water inlet pot; a second liquid outlet joint of the separation pot is connected with a first end of a first three-way pipe, and a second end of the first three-way pipe is connected with a concentrated solution pump A in series and then connected with a concentrated solution joint A; a third end of the first three-way pipe is connected with a first end of a second three-way pipe; a second end of the second three-way pipe is connected with a concentrated solution pump B in series and then connected with a concentrated solution joint B; and a third end of the second three-way pipe is connected with an electrical conductance monitor in series and then connected with a dialysate inlet joint of a capacity balancing and ultrafiltering device. In the hemodialysis system, the rotating speed of the gear pump is easy to control, and the operation noise is lower; the waterway operation pressure of the whole system is lower; and the service life of waterway parts is longer.

The invention relates to the technical field of coatings and particularly relates to an elastic-feeling coating. Ultraviolet (UV) light-cured elastic-feeling paper gloss oil is composed of the following components in parts by weight: 18-22 parts of UV elastic resin, 22-28 parts of monomer, 8-12 parts of active amine, 3-7 parts of photoinitiator, 5-10 parts of elastic powder, 3-7 parts of gas phase silica matting powder, 0.5-2 parts of assistant and 22-26 parts of solvent, wherein the monomer is a mixture of isobornyl acrylate and 1,6-hexanediol diacrylate. The ultraviolet light-cured elastic-feeling paper gloss oil provided by the invention is suitable for high-speed roller coating, thereby improving the working efficiency, reducing the coating operation difficulty and avoiding personal injury.

The invention discloses a control method for an unpowered descending speed of a patrol robot. According to the method, a pulse width modulation method is applied to dynamic braking and the unpowered descending speed of the patrol robot is controlled by changing the PWM wave duty cycle of the control circuit. According to the speed control method, the control on unpowered descending speed of robot can be accurately realized, the running safety of the robot in unpowered descending process can be ensured and basis is laid for the further implementation of a recycling method for unpowered energy.

The invention relates to a centrifugal gas way type gas purifier which comprises a gas and spray mixing device, a purifier shell, a centrifugal rotor and a power device. The gas and spray mixing device is used for mixing gas with spray, the centrifugal rotor used for adsorbing suspended particles in the gas is mounted in the purifier shell, a plurality of centrifugal gas ways for gas flow to flow unidirectionally are arranged in the centrifugal rotor, the power device is in transmission connection with the centrifugal rotor to drive the same to rotate, and a gas inlet of the centrifugal rotor is connected with a gas outlet of the gas and spray mixing device. The gas and spray mixing device mixes the gas with the spray and provides power to feed mixed gas to the centrifugal gas ways, the centrifugal rotor driven by the power device rotates at a high speed, and the suspended particles in the mixed gas entering the centrifugal gas ways are adhered on the inner walls of the centrifugal gas ways under action of centrifugal force, so that the suspended particles and harmful gas in the gas are removed circularly to achieve the objective of efficiently purifying the gas.

The invention relates to a rotating valve rotational speed control method for a measuring-while-drilling tool, and belongs to the technical field of drilling equipment control. A drilling fluid continuous pressure wave signal generator used for measuring while-drilling keeps the rotating valve rotational speed stable and fast adjusting of the rotational speed under the influence of the loading moment of the rotating valve, linearization correction of a rotating valve rotational speed control system is conducted based on feed forward compensation, and linearization correction of a rotating valve rotational speed loop opening control system is achieved; then fast follow control of the rotating valve rotational speed is realized based on PID parameters preferably, fast following of the rotating valve rotational speed on a phase modulation control pulse is realized, the high anti-interference ability and changes of rotating speed fast following phase control pulse are achieved, and fast follow control of the rotating valve rotating speed is achieved; and a rotating valve produces high-quality drilling fluid continuous pressure wave signals, and the requirement of data transmission of measuring while-drilling and logging while-drilling is met. According to the rotating valve rotational speed control method, the control principle is scientific, the control process is simple, the control route is reliable, control equipment is easy to get, and the application environment is friendly.

The invention provides a gelatinizing and pressing-fit device for a plate, and belongs to the technical field of plate processing. The gelatinizing and pressing-fit device comprises a pressing-fit mechanism, a gelatinizing mechanism and a glue liquid control mechanism. A gelatinizing support of the gelatinizing mechanism is arranged on a guide rail in a left-right sliding manner, and a gelatinizing roll is rotationally arranged between two gelatinizing roll supporting plates. A first lead screw and a first lead screw nut are in threaded connection, and a second lead screw and a second lead screw nut are in threaded connection. The pressing-fit mechanism is arranged over the gelatinizing mechanism, and first sliding sleeve plate, a second sliding sleeve plate and a third sliding sleeve plate of the pressing-fit mechanism are arranged from top to bottom and arranged on a pressing rod in a vertical sliding manner. The rigidity of a first spring is smaller than that of a second spring, andthe rigidity of the second spring is smaller than that of a third spring. The gelatinizing and pressing-fit device is fast and even in gelatinizing, pressing-fit force changes can be divided into three stages, the pressing-fit force is in a gradually increasing broken line type, the pressing-fit force stability is good, and the gelatinizing and pressing-fit effect of the plate is greatly improved.

The invention relates to an overspeed detection hyperspectral imaging technique, and provides a Fourier transform hyperspectral imaging device based on a high-speed double reflection rotating mirror to solve the problem of nonlinearity caused by an optical path difference of a high-speed rotating mirror transmission type interference spectrometer. The device comprises a collimating mirror, a beamsplitting mirror, a first reflecting mirror, a second reflecting mirror, a first hollow retro-reflector, a second hollow retro-reflector, a detector and the double reflection rotating mirror. Incidentlight is incident on a beam splitter and is divided into reflected light and transmitted light. The reflected light enters the first hollow retro-reflector after being reflected by the first reflecting mirror and the double reflection rotating mirror. Then the reflected light returns back to the double reflection rotating mirror at 180 degrees, and is then reflected to the beam splitter by the double reflection rotating mirror and the first reflecting mirror. The transmitted light enters the second hollow retro-reflector after being reflected by the second reflecting mirror and the double reflection rotating mirror. Then the reflected light returns back to the double reflection rotating mirror at 180 degrees, and is then reflected to the beam splitter by the double reflection rotating mirror and the second reflecting mirror. The interference light generated by the reflected light and the transmitted light is received by the detector.