87results about How to "Adjustable range" patented technology

The invention discloses a real-time measurement device for dynamic positions and poses. The real-time measurement device for the dynamic positions and poses can be applied to real-time accurate position and pose measurement of a to-be-measured object in a dynamic environment and comprises a datum emission and transmission system, a dual-screen laser imaging system, a binocular visual inspection system and a data processing system, wherein the datum emission and transmission system provides three-dimensional angle datum for position and pose measurement by utilizing cross-line laser and a distance between a measured object and the measurement datum is obtained through combination with a distance measurement function; the dual-screen laser imaging system receives the cross-line laser and performs imaging on receiving screens; the binocular visual inspection system shoots cross-line laser images on the two receiving screens in real time and extracts position information of the cross-line laser center under the image coordinate system and an included angle between the cross horizontal line and a horizontal axis of the image coordinate system; the data processing system comprehensively processes data information of each system and calculates real-time positions and poses of the measured object relative to the measurement datum. The real-time measurement device is high in measurement precision, adjustable in measuring range and precision and suitable for measuring object positions and poses in a vibration environment.

Disclosed is an ultra-short pulse laser light beam body holographic grating shaping apparatus which includes a for recording the body holographic grating which light axis direction is consistent with the body holographic grating vector, in the incoming direction of pulse laser light beam for shaping in front of the crystal, there is a broad band polarizing spinner; in the crystal transmission light beam direction, there is a second polarizer; in the crystal light beam diffraction direction, there is a third polarizer. Compared with prior technology, the invention can realize pulse laser light beam shaping via modulating the polarization status, and the modulating range can be changed by selecting grating parameter and the shaping range is adjustable.

Regions based on which an interpolation method of a fractional-accuracy pixel is switched are optimized, and the interpolation method is switched for each of the divided regions, thereby reducing residual energy of inter-frame prediction with motion compensation. A video encoding apparatus is provided with: an encoding information acquiring unit which acquires encoding information for each block; a region classification unit which performs a region classification on a block-by-block basis in accordance with the encoding information; a divided region redefinition processing unit which shifts a region dividing line in a horizontal direction, a region dividing line in a vertical direction, or both the region dividing line in the horizontal direction and the region dividing line in the vertical direction based on a result of the region classification, and determines a region dividing line with which density of blocks belonging to a particular region classification is greater than or equal to a predetermined threshold value; an interpolation method switching unit which switches an interpolation method of a fractional-accuracy pixel for each of divided regions divided by the region dividing line; an interpolation performing unit which performs interpolation of the fractional-accuracy pixel for each of the divided regions; a picture encoding unit which encodes a picture using inter-frame prediction with motion compensation of fractional-accuracy for an interpolated picture; and a region classification information encoding unit which encodes information on the region classification.

The invention relates to a white balance processing method and relative video device. Wherein, it is characterized in that: the RGB color spatial image is converted into YCbCr color spatial image; according to the brightness and color of each pixel, deciding the gray color point; according to the gray color point, adjusting the color of pixel in the RGB color spatial image. The invention can avoid the defects of hand-operated white balance treatment, without changing the former color of scenery. The invention can obtain accurate judgment of gray color point, to obtain better white balance effect on the image frame. The inventive method can be used in whole image frame.

The invention discloses a wind speed and direction testing device based on light spot position sensitivity, comprising a wind-sensitive rod, a light spot position detection sensor and a light emitter, wherein the wind-sensitive rod is of vertical cantilever structure; the light emitter is arranged at the suspended terminal of the wind-sensitive rod; and the light spot position detection sensor is horizontally arranged below the wind-sensitive rod. Compared with the traditional testing devices, the testing device of the invention has the advantages of small volume, adjustable range, convenient installation or carrying, low power consumption, small temperature drift, convenient maintenance, etc.

The invention discloses a wire harness fatigue testing device and a testing method. The device comprises a rack, a storage, a controller arranged on the rack, a first wire harness fixing plate longitudinally extending, two transverse guide rails positioned below the first wire harness fixing plate, a second wire harness fixing plate which longitudinally extends and is in sliding connection with the two transverse guide rails, a connecting rod, a horizontal turntable positioned inside the two transverse guide rails and a power device connected with the horizontal turntable; one end of the connecting rod is connected with one side of the second wire harness fixing plate; the other end of the connecting rod is connected with the part, close to the edge, of the horizontal turntable; the controller is provided with a display screen, a horn and a plurality of control keys; the controller is connected with the power device, the display screen, the horn, each control key and the storage electrically. The device has the characteristics of high testing efficiency, testing consistency and high testing precision.

The invention provides a light path coupling device and a fluorescence temperature sensing optical system. The light path coupling device comprises an optical fiber splice, a fluorescence exciting light source, a fluorescence detector and a filter. The fluorescence exciting light source and the fluorescence detector are arranged on the same surface of the same circuit board. The fluorescence detector and the filter are arranged oppositely. Coupling lenses are arranged on a light path of the filter and a light path of the optical fiber splice. The filter and the coupling lenses are located on the light paths between the fluorescence exciting light source and the optical fiber splice. The light path coupling device further comprises a box. An optical mirror groove is formed in the box. The filter is located in the optical mirror groove. A through hole is formed in the box. The optical fiber splice and the coupling lenses are located in the through hole. The system comprises a fluorescence optical fiber temperature detecting probe, a light source drive circuit, a fluorescence signal probing circuit, a signal demodulation processing circuit, a display device and the light path coupling device. The fluorescence temperature sensing optical system is convenient to install, and high in stability and measurement precision.

The invention discloses a novel range-adjustable magnetic liquid acceleration sensor, and belongs to the technical field of inertial sensors. Current magnetic liquid acceleration sensors are short in range and large in size, and also have the problem that for long-term use, the accuracy of sensor is reduced due to that restoring forces are reduced because of demagnetization of permanent magnets. The sensor is composed of an air tank, an air duct, a valve, a pressure gauge, an end cap, a shell, an inductive coil, a cylindrical permanent magnet, a rubber seal ring, a bolt / nut connecting assembly, air, magnetic liquid and a signal circuit, wherein the cylindrical permanent magnet and the magnetic liquid form inertial mass. While enabling the permanent magnet to float in the inner cavity of the shell, the magnetic liquid also can seal the air in the cavities at two ends in the inner cavity of the shell. When moving axially, the inertial mass compresses the air in the cavity at one end to generate the restoring force. The range of the sensor can be adjusted by changing the restoring force through adjusting air pressure in the cavities at two ends in the inner cavity of the shell. The sensor has adjustable range, small size and long service life.

The invention relates to an astronautic programmable thermocouple temperature transmitter. A circuit part is composed of a power circuit, a programmable amplifying circuit, a programmable cold junction compensation circuit, an operation amplifying circuit and an output protecting circuit, wherein the functions of power filtering, reverse connection protection, transient impact protection, and the like, are achieved by the power circuit; a thermocouple signal is adjusted to be in a suitable voltage range by the programmable amplifying circuit; the programmable cold junction compensation circuit is used for sensing the temperature of a cold junction of the thermocouple, converting a temperature signal of the cold junction into a voltage signal and compensating the temperature of the cold junction of the thermocouple; output signals of the programmable amplifying circuit and the programmable cold junction compensation circuit are operated and amplified to be 0-5V by the operation amplifying circuit; and the output protecting circuit is used for limiting an output voltage within a scope of -0.5V to +6.5V and protecting a next-stage system from being damaged when the circuit is in fault. The astronautic programmable thermocouple temperature transmitter has the advantages of high intelligent degree, adjustable range, no requirement for hardware debugging, suitability for batch production and suitability for thermocouples of K type, E type, T type and tungsten rhenium type.

The present invention provides an ultraviolet light irradiation device having a planer UV light source in which the irradiation intensity of UV light can be adjusted finely in a wider range. The ultraviolet light irradiation device of the present invention comprises an UV light source and a housing that holds the planer UV light source. In the UV light source, a plurality of thin plasma tubes, each of which has an UV phosphor layer formed therein, are arranged in parallel with each other on an electrode support sheet, and drive circuits apply a pulse voltage to electrode pairs provided between the electrode support sheet and an array of the thin plasma tubes. A control circuit controls a factor of the pulse voltage to be applied to the electrode pairs so as to adjust the irradiation intensity of the UV light.

The invention relates to a fiber-grating cultural relic weighing type antitheft alarm sensor comprising four pressing blocks, four cylindrical cushion blocks, two LC fiber flange interfaces, a base plate connected with a housing body, and four sensing cantilever beams pasted with fiber gratings. Free ends of the four sensing cantilever beams are respectively distributed at four corners of the base plate and are respectively connected with the four cylindrical cushion block; and fixed ends of the four sensing cantilever beams are located at the edge of the center of the base plate and are connected with the four pressing blocks arranged above the fixed ends and the base plate. Four through holes where the four cylindrical cushion blocks can slide up and down in the holes are formed in the base plate. The fiber gratings of the four sensing cantilever beams are successively connected in series; and the two ends of the series fiber grating unit are respectively connected with the two LC fiber flange interfaces. According to the invention, weighing, displaying, and on-line monitoring and antitheft alarming of important cultural relics can be realized; and the sensor has characteristics of high intrinsic safety, good anti-electromagnetic interference property, large-scale networking, low cost, high measurement precision, large range, small size, and easy assembling.

The invention discloses a high-efficient dust removal device. The dust removal device comprises a photovoltaic panel; a spray head support is connected with a first edge of the photovoltaic panel, a water pipe is arranged on the spray head support, and uniformly-distributed spray heads are arranged on the lower part of the water pipe; a water collecting groove is connected behind the spray head support, one end of the water collecting groove is connected with a water pump, the water pump is connected with a rotating shaft through a hose, and the rotating shaft is connected with a first motor; the water collecting groove and the water pump are connected with a support; a first slide rail is arranged beside the side part of a second edge of the photovoltaic panel, and the first slide rail is in sliding connection with the spray head support; and the spray head support is further connected with an air cylinder. According to the dust removal device, the photovoltaic panel can be washed and dried, and most of cleaning water adopts rainwater stored in rainy days so that resources can be saved; and rust-proof coatings coat the positions of the spray head and the spray head support so that corrosion affects cleaning effect can be effectively avoided, and therefore the service life of cleaning equipment can be prolonged.

The invention discloses a spray ring with adjustable nozzle angle. The spray ring comprises a spray ring pipe, a nozzle, an adjusting frame and an adjusting power part. The spray ring pipe is integrally in an annular pipe shape. A kidney-shaped groove penetrating through the adjusting frame is formed in the adjusting frame, and the included angle between the extending direction of the kidney-shaped groove and the height direction of the adjusting frame is an acute angle. The nozzle penetrates through the kidney-shaped groove, and one end of the nozzle is connected with the spraying ring pipe in a ball hinge mode. The adjusting frame is connected with the spray ring pipe in a sliding mode. The adjusting power part is used for driving the adjusting frame to slide back and forth along the spray ring pipe so as to change the angle of the nozzle. The invention further discloses an air-assisted sprayer which comprises a barrel and the spray ring with adjustable nozzle angle. The technical problem that in the prior art, the angle of a nozzle on a spray ring of an air-assisted sprayer is fixed, and the relative angle of airflow and mist flow cannot be adjusted in real time is solved.

The invention discloses a structural optimization method for a parallel load distribution type six-component force sensor. The parallel load distribution type six-component force sensor takes a central bearing beam as a load auxiliary support and the bearing capacity of the sensor can be greatly improved. Based on the condition that the parallel branched-chain force is fixed in the parallel six-component force sensor, the mutual influence rule of the range and structural parameters of the sensor is researched. According to the structural optimization method for the parallel load distribution type six-component force sensor provided by the invention, the maximum branched-chain bearing capacity of each branched chain in a safe working state is taken as a condition, the range of the six-component force sensor is used as a basic value at the moment, the central bearing beam and branched chain parameters are changed to obtain a new range of the sensor, and the structural parameters of the sensor are optimized by establishing a comprehensive incremental range model of the sensor. Compared with a traditional sensor structural optimization method, on the one hand, the parameter design of the central bearing beam is facilitated, so that the bearing requirement of the sensor is met; and on the other hand, the branched chain parameters of the sensor can be properly adjusted for optimization for the bearing requirement.

The invention relates to cable laying ship submarine cable burying machine lifting and dragging system matching equipment, in particular to a deflection angle detection device for a storage winch rope arranger in a double-winch system. A proximity switch is mounted on an upper supporting plate, a spring is arranged on a spring supporting seat, a shaft end cover is arranged above an upper rotating block and connected with the upper supporting plate through a screw, a position rod is mounted between clamp plates below the upper rotating block, the upper rotating block is connected with a lower rotating block through supporting cylinders, an adjusting hole is formed in the upper supporting plate, the horizontal mounting position of the proximity switch can be adjusted, adjusting holes are formed in the clamp plates below the upper rotating block and the position rod, the extension length of the position rod can be adjusted, so that a deflection angle range is adjusted, a steel wire rope penetrates the space between two supporting cylinders, and the rotating angle of a free end of the position rod is detected by the proximity switch. The deflection angle of the steel wire rope in cable deploying and retracting by winches can be accurately detected, the steel wire rope is stably and neatly arranged on a reel, smooth operation of the winches is ensured, and the service life of the steel wire rope is prolonged.

To provide a transducer that can detect the rotation of the transducer with high degree of accuracy, a transducer includes a pair of oscillating reeds extending in the Y-direction to generate a first oscillation to generate a Coriolis force corresponding to the rotation of the transducer, a beam extending in the X-direction and connected to the pair of oscillating reeds, a first detecting unit provided on the beam to detect deformation of the beam due to a second oscillation of the pair of oscillating reeds caused by the Coriolis force, a base member to support the beam, a first connecting device to connect one end of the beam and the base member, and a second connecting device to connect the other end of the beam and the base member.

The invention discloses a gear line structured light fast scanning measurement method based on tooth surface contact line measurement, and the gear line structured light fast scanning measurement method includes: establishing a three-dimensional mathematical model of a measured involute cylindrical gear, and performing motion control planning on a linear structured light sensor measuring head; thelinear structured light sensor measuring head is used for replacing a traditional contact measuring head to scan the contact line of the measured involute cylindrical gear, compared with other measurement method, the gear line structured light fast scanning measurement method has better measurement precision, the advantages of fast optical measurement, no measuring head and tested part abrasion,high data correlation, convenient installation and maintenance, and the like can be kept, and the precision of meeting the measurement requirements can be obtained. According to the measurement method, and the characteristic that the contact line of the involute cylindrical gear is a straight line and the advantage that the linear measuring accuracy of linear structured light is high are fully utilized, so that high-precision optical rapid and full-information measurement of the gear is realized.

The invention discloses a photoelectric receiving sensor for an incremental displacement measurement device. The photoelectric receiving sensor solves the problems that displacement measurement precision is low, maintenance and debugging of finished products cannot be realized and optical signals cannot be output stably for a long term. The photoelectric receiving sensor comprises a photoelectric detector array, a summator, subtracters and a gain-variable amplifying circuit, wherein the photoelectric detector array outputs sinusoidal current signals corresponding to the optical signals, the gain-variable amplifying circuit receives the sinusoidal current signals, amplifies the sinusoidal current signals and converts the sinusoidal current signals into voltage signals, the summator sums the voltage signals output by the gain-variable amplifying circuit so as to obtain a direct-current voltage signal, the subtracters convert the voltage signals output by the gain-variable amplifying circuit into sinusoidal signals or cosine signals. The photoelectric receiving sensor adapts to multiple light source requirements and can analyze displacement information amount precisely, influences caused by light source nonuniformity and distribution nonuniformity of the photoelectric detector array are obviously reduced, the optical signals can be output by a light source stably for long term, and the photoelectric receiving sensor is adjustable in gain and simple in structure.

The invention provides an iron-based metal-organic-framework material water oxidation catalyst and a preparation method thereof. The preparation method includes the steps of firstly, dissolving an organic ligand [HO2C-C6H4-CO2H]R into N, N- dimethyl formamide, and stirring under room temperature to obtain a clear and transparent solution for standby; secondly, adding Fe III into the clear and transparent solution obtained in the first step, and evenly stirring under room temperature to obtain a mixed solution for standby; thirdly, transferring the mixed solution obtained in the second step into a reaction kettle, performing constant-temperature thermal reaction, cooling after the reaction, filtering obtained solid products, and washing with ethanol to obtain solid products, namely the iron-based metal-organic-framework material water oxidation catalyst FeIII(OH)[O2C-C6H4-CO2]R. The preparation method has the advantages that the structural unit with the water oxidation catalyzing function is implanted into a metal organic framework material, and the prepared iron-based metal-organic-framework material has excellent pore structures and is beneficial to the increasing of the water oxidation reaction catalyzing ability and efficiency.

The invention discloses a method for making a dry age-related macular degeneration disease model on a primate, namely applying sodium iodate onto the primate with a carotid artery injection method. The method is simple and easy, high in success rate and good in repeatability. The model made with the method is stable. The amount of sodium iodate needed is small, injury of large doses of sodium iodate to the whole body of the animal is avoided, and the animal can live for a long time so that follow-up tests can be made possible. A model of any one side or a model of double sides can be made as needed. When the one-side model is made, a lateral eye can not be hurt at all, and normal living vision of the animal is guaranteed. Comparison of two lateral eyes of one animal can be conducted to provide credibility for the test, and the number of animals needed for the test is reduced. The method provides a sound tool for the dry age-related macular degeneration research and has great significance for the pathological physiology research and treatment research of the disease.

The invention relates to an optical fiber liquid level sensor and an optical fiber liquid level sensing method. The optical fiber device is mainly illustrated to measure the liquid level by adopting the light leakage proportion in a cladding-removed optical fiber, and comprises an optical fiber probe with removed part of cladding, a monochromatic source, an optical coupling beam splitter, an optical isolator, two photoelectric converters for proportion detection, and a signal conditioning circuit. The cladding of the optical fiber probe is removed continuously or at multiple points at the end portion of the middle portion to change the sensitivity, the signal to noise ratio, and the continuity or switching characteristics of the output signal of the device. The optical fiber liquid level sensor and the optical fiber liquid level sensing method have the advantages of the intrinsic safety, the electromagnetic immunity, the adjustable measuring range, the stability, the reliability, the low cost and the like.

The invention relates to a pressure transmitter, which is characterized by comprising an electronic control device and a pressure sensor. The pressure sensor is connected with the electronic control device through a signal line, the electronic control device comprises a signal processing chip and a display module, the signal processing chip is connected with the display module, a binding post is arranged on the signal processing chip and connected with the pressure sensor through a signal line. The pressure transmitter enables measuring range of the transmitter to be adjustable to be suitable for pressure measurement of an induction manifold of a combustion motor, and can enable pressure measuring range of the induction manifold in a unit full power range to correspond to 4-20 mA..

The invention discloses a portable electromagnetic gun demonstration experiment instrument for a teaching experiment. The portable electromagnetic gun demonstration experiment instrument includes a supporting base structure, a start and control structure, a trajectory external structure and a projectile acceleration structure, wherein the supporting base structure includes a gun body base (1) anda supporting bearing (2), and the supporting bearing (2) is arranged in the gun body base (1); the trajectory external structure includes a supporting part, a driving mechanism and a trajectory part,the driving mechanism includes a steering engine (4), and the trajectory part includes a trajectory (11) and a trajectory outer cover (10) arranged on the outer circumference of the trajectory (11); and the projectile acceleration structure includes a first-order acceleration coil (14) and a first-order acceleration photoelectric gate (15), and the start and control structure includes a steering engine control and Bluetooth receiving module (17), an energy storage device and a transmitting switch (19). The invention further discloses a using method of the portable electromagnetic gun experiment instrument. Electromagnetic gun demonstration experiment teaching can be realized, and the experimental sense and teaching effect are improved.

The invention discloses a high-pressure sprayer. The high-pressure sprayer comprises a shell, an empty cavity, a spray nozzle, a fire-extinguishing gas spray pipe, a filtering chamber, a liquid pressurizing chamber and a regulating support, wherein the empty cavity is internally provided with a metal coil pipe which is of a hollow structure; one end of the metal coil pipe is connected with the fire-extinguishing gas spray pipe, and the other end of the metal coil pipe is connected with the gas pressurizing chamber; the filtering chamber is connected to one side, which is opposite to the connection of the empty cavity and the spray nozzle, of the empty cavity; the other end of the filtering chamber is connected with a water pipe; a seal ring is arranged at the connection part of the filtering chamber and the water pipe so as to prevent water leakage between the filtering chamber and the water pipe. The high-pressure sprayer is high in fire extinguishing efficiency, meanwhile can be used for saving water resources and is adjustable in shooting range and simple in structure.

The invention relates to an optical fiber Bragg grating-based vibrating wire infrasonic wave sensor, belongs to the technical field of an optical measurement device. The structure of the sensor comprises a bridge I, a vibration wire, a guide rail, a bridge II and a fixed bracket, wherein the vibration wire is arranged fixedly on the fixed bracket in a suspended manner; the fixed bracket is provided with a ring part and a right-side base plate under the position where the vibration wire is arranged; the ring part is a circular elastic diaphragm; the lower surface of the elastic diaphragm is pasted with a Bragg grating; the right-side base plate is provided with the guide rail parallel to the vibration wire; the bridge I is fixedly arranged on the circle center of the elastic diaphragm; the bridge II which is capable of sliding along the guide rail is arranged on the guide rail; the vibration wire makes contact with the bridge I and the bridge II. The elastic diaphragm made of polyester film is arranged between the left-side bridge I and the optical fiber Bragg grating, thus the elastic diaphragm is capable of reducing the influence, caused by the direct effect of the infrasonic wave, on the optical fiber Bragg grating, and the sensitivity of the sensor is improved effectively.

The invention discloses a pose measurement device used for measuring dynamic poses. The device comprises a double-screen laser imaging system and a binocular vision detection system. The double-screen laser imaging system comprises a first laser receiving screen, a second laser receiving screen and a transparent-reflection prism. A diffuse reflection coating is painted on each of the first and second laser receiving screens. A 500-600nm band-pass filtering film is painted on a half-transparent face of the transparent-reflection prism. The first laser receiving screen and the second laser receiving screen are mutually perpendicular to each other and parallel to adjacent two faces of the transparent-reflection prism. The distances from the first laser receiving screen and the second laser receiving screen to the adjacent two faces of the transparent-reflection prism are not equal to each other. The binocular vision detection system comprises a first CCD camera and a second CCD camera. According to the invention, the double-screen laser imaging system receives crossed laser and carrying out imaging on the receiving screens; and the binocular vision detection system shoots the crossed laser images on the receiving screens in real time and extracts position information of each crossed laser center under an image coordinate system and the included angle between each crossed transverse line and the image coordinate system. The device is mainly used for measuring object poses in the dynamic environment.

The present invention provides a precisely controlled terminator circuit of a differential amplifier, in particular, for a differential amplifier of an optical receiver. The differential circuit, which receives a differential signal by a first input for the normal phase signal and a second input for an anti-phase signal, provides a terminator circuit comprises two resistors connected in serial between two inputs and two resistive connections each including a transistor and a resistor serially connected to the transistor and connected between respective inputs and the power supply line Vcc. The control unit, by receiving a medium potential of two resistors, provides a bias to two transistors so as to equalize the medium potential with the reference potential.

The invention provides a line throwing device special for power transmission. The line throwing device special for the power transmission comprises a conduit, wherein the front end of the conduit is open, and the rear end of the conduit is provided with a tail. A piston with a positioning portion is contained in the conduit. An elastic element is connected between the tail of the conduit and the piston. One end of a pull line passes through the tail of the conduit and is connected with the piston. The other end of the pull line is connected with a tight heaving device through a guiding element. A trigger movement groove is further formed in the conduit. A trigger clamped with the positioning portion of the piston is movably arranged in the trigger movement groove. The line throwing device special for the power transmission pulls the piston to compress the elastic element through the pull line, does not need an external object, and not only is convenient, but also saves labor. Additionally, the trigger of the line throwing device special for the power transmission can move forward and backward along the trigger movement groove, and therefore the deformation quantity of the elastic element can be adjusted, and then a firing range can be adjusted, and the line throwing device special for the power transmission is suitable for actual use.

The invention discloses a vernier caliper. The range of the vernier caliper is adjustable, so that the use cost of the vernier caliper is reduced, the measurement efficiency and measurement accuracy are improved, and the vernier caliper is convenient to carry. The vernier caliper comprises a fixed main scale, a movable main scale and a vernier, wherein the movable main scale can be contained at the rear side of the fixed main scale, and the head of the movable main scale can be butted with the tail of the fixed main scale; and the vernier is arranged on the fixed main scale in a sliding manner and can be mounted with the movable main scale in a sliding manner when the fixed main scale is butted with the movable main scale.