82results about How to "Affect detection accuracy" patented technology

The invention discloses a method and device for detecting a mechanical arm of a robot. The device for detecting the mechanical arm of the robot comprises a detection work platform, a plurality of first sensors and a controller, wherein the signal detection ends of the multiple first sensors are distributed on a platform face of the detection work platform, and the first sensors are used for detecting the distance Ei between an extension point Pi of a sphere and the first sensors Si; the controller is connected with the signal output ends of the first sensors, and is used for calculating the sphere center position of the sphere in a preset coordinate system according to the distance Ei to the distance En. The preset coordinate system is a rectangular coordinate system with the center of the platform face as an original point. By means of the method and device, the problem that the accuracy for detecting a mechanical arm of a robot in the prior art is relatively low is solved, and the effects of improving the detection accuracy and reducing the device cost are further achieved.

The invention discloses an accurate refrigeration type high-precision automatic temperature control system for a greenhouse. The system is characterized in that the system mainly consists of a micro controller, an electric heater, a refrigerator driving circuit, a display device, an adjustable low-pass filter circuit, a storage device, a signal conversion circuit connected with the adjustable low-pass filter circuit, a temperature sensor group connected with the signal conversion circuit, and a refrigerator connected with the refrigerator driving circuit, wherein the electric heater, the refrigerator driving circuit, the display device, the adjustable low-pass filter circuit, and the storage device are connected with the micro controller. According to the invention, a temperature in a greenhouse can be collected in real time; when the temperature in the greenhouse is too high or too low, the refrigerator or the electric heater can be turned on automatically, so that the temperature can be adjusted timely and accurately and thus the intelligent temperature collection and temperature control can be realized and the good condition can be provided for crop growth. Meanwhile, the automation degree is high and thus the labor force is saved. The refrigerator driving circuit drives the refrigerator, thereby improving working stability of the refrigerator and realizing a good refrigeration effect.

The invention provides a cliff detecting method which comprises controlling an optical transceiver to enter a strong light detecting mode, a weak light detecting mode or a normal light detecting mode;detecting a first light parameter currently generated by the optical transceiver if the optical transceiver enters the strong light detecting mode and determining whether there is a cliff according to the first light parameter and a first threshold; detecting a second light parameter currently generated by the optical transceiver when the optical transceiver enters the weak light detecting mode and determining whether there is the cliff according to the second light parameter and a second threshold; detecting a third light parameter currently generated by the optical transceiver if the optical transceiver enters the normal light detecting mode and determining where there is the cliff according to the third light parameter and a third threshold. According to the cliff detecting method, cliff detection can be performed under various light environments and is not affected by ambient light. The invention also provides a cliff detecting device and apparatus and a robot.

The invention discloses a low-cost miniature Halbach magnet with adjustable magnetic field uniformity, which comprises a main magnet, a shimming structure and a magnet structure support piece, and ischaracterized in that the main magnet comprises eight magnets with trapezoidal sections and eight samarium-cobalt magnets with rectangular sections, and the magnets with two shapes are closely arranged at intervals to form a circular ring; the shimming structure is divided into end shimming and central shimming according to different functions; the magnet structure supporting piece is used for final assembly of magnets and comprises an upper sealing cover, a lower sealing cover, a guide opening and a shell. The magnetic field intensity of 1T can be realized, the total mass of the magnet is lower than 3kg, the portable development of a low-field nuclear magnetic resonance instrument is facilitated, and the requirement of instant detection of researchers is met.

The invention provides a total dissolution solid detection method, a detection device, detection equipment and a storage medium, wherein the detection method comprises the following steps that after driving voltage is loaded between the first output end and the second output end, controlling the driving voltage to execute the positive and negative electrode conversion operation according to the preset conversion frequency; collecting sampling voltage between a first metal rod and a second metal rod; according to the sampling voltage, determining the total quantity of total dissolution solids.By adopting the technical scheme, on one hand, the detection precision is high; on the other hand, the voltage driving is realized in a mode of executing the positive and negative electrode conversionoperation on the driving voltage; the input of the continuous voltage between the output ends can be ensured; in addition, the voltage values in the two half periods are identical; the voltage directions are opposite; the control precision is further higher; the polarization prevention effect is better.

The invention relates to the field of metal surface defect detection devices, in particular to a portable metal surface defect laser scanning detection device which comprises a fixing seat, a feedingstructure, a clamping structure, a fixing structure, a moving structure, a mounting structure and an ash removal structure. Through arranging the mobile structure, reciprocating comprehensive detection work can be carried out on the surface of the steel pipe, detection is more convenient and accurate, the moving speed is more uniform, and the requirement of improving the detection precision can bemet. Cooperating with the arrangement of the mounting structure, the scanning assembly can be conveniently clamped and disassembled. The device is convenient to install and replace. The ash removal structure can be synchronously driven to work while the moving structure works. Through work of the ash removal structure, dust outside a steel pipe can be removed while the steel pipe is detected, andtherefore the situation that the detection result of the steel pipe is affected by the dust on the surface of the steel pipe can be avoided.

Provided is an infrared probe temperature measuring device including a casing, a lens arranged on the casing, an infrared probe arranged in the casing, a cleaning device arranged in the casing, and two position sensors, the casing includes a body and a mount arranged outside the body, the position sensors are respectively and fixedly arranged at the upper part and the lower part of the mount, the cleaning device includes a rotary electromagnet, a rotating blade connected to the rotary electromagnet, and a hairbrush arranged on the rotating blade, the emitting directions of the position sensors face the rotary electromagnet, one end of the rotating blade is connected with the rotating shaft of the rotary electromagnet, the other end of the rotating blade is provided with a block, the rotary electromagnet drives the rotating blade to rotate around the rotating shaft to make the block of the rotating blade move ahead of the two position sensors successively, the hairbrush is arranged at the inner side of the rotating blade, and the hairbrush performs synchronous rotation along the rotating blade to clean the lens during the swing process of the rotating blade driven by the rotary electromagnet. The infrared probe temperature measuring device is high in automation and practicality, greatly prevents dust from falling to the surface of the lens, and greatly prolongs the maintenance period.

The invention provides a driving shaft assembly swing angle detecting tool, and aims to solve the technical problem that the swing angle of a driving shaft assembly in the prior art is difficult to measure. The driving shaft assembly swing angle detecting tool provided by the invention is characterized in that a positioning sleeve and a detecting mechanism are arranged on a base, and the detectingmechanism comprises a supporting rod and a swing angle measuring device. In the measuring process, a shaft fork of the driving shaft assembly is fixedly arranged on the positioning sleeve, and then the shaft body of the driving shaft assembly is swung; the shaft body touches and pushes a rack to move when the shaft body is swung, and the rack moves to drive a pointer to deflect, so that whether the swing angle of the shaft body of the driving shaft assembly meets the requirements or not can be conveniently detected. The detecting tool is simple in structure, is very convenient to operate andhas high detection efficiency in actual detection, and the labor intensity of a technician is reduced.

The invention discloses a detection device for detecting the gas tightness of an oxygen sensor, comprising an upper machine body and a lower machine body, wherein the center of the lower machine body is provided with a lower press mould, the lower end of the lower press mould is communicated with an air source through a gas guide pipe, the gas guide pipe is provided with a pressure transmitter, and the upper end of the lower press mould is assembled with the lower part of the oxygen sensor; the upper surface of the upper machine body is provided with a pneumatic cylinder, a piston rod of the pneumatic cylinder penetrates through the center of the upper machine body to be connected with an upper press mould assembled with the upper part of the oxygen sensor, and the upper press mould is provided with a vent hole. In the invention, the gas tightness of the oxygen sensor to be detected is judged by detecting the pressure value of a gas inside a cavity positioned between an electromagnetic valve and the oxygen sensor to be detected and within a given time according to the variable quantity of the pressure of the cavity, thereby achieving high accuracy.

The invention provides a PCB back pin height detecting device. The PCB back pin height detecting device comprises a device body, the device body is connected with an external PLC and receives controlof the PLC, the device body comprises a base, a first detecting frame, a second detecting frame and a detecting part, the first detecting frame is located on one side of the top of the base, and the first detecting frame is fixedly connected with the base. The second detecting frame is located on the other side of the top of the base, and the second detecting frame is movably connected with the base. According to the PCB back pin height detecting device, whether all pins on the back of a PCB are ultrahigh or not can be fast detected, operation is easy, use is convenient, the detecting accuracyand the detecting efficiency are greatly improved, the labor intensity and the production cost are reduced, and the detecting needs of PCBs of different sizes and different thicknesses on different permitted height standards of the bins on the back can be met.

The invention relates to a gastroscope snake bone pipe curvature detection device with an automatic screening function. The gastroscope snake bone pipe curvature detection device comprises an equipment shell and a third electric sliding rail, wherein a first belt conveyor, a slide way and a second belt conveyor are sequentially arranged on the upper wall of the interior of the equipment shell from left to right, and the upper end of the slide way is connected with a collection box. An infrared distance sensor and a bending power mechanism are sequentially arranged on the rear wall of the interior of the equipment shell from the middle to the left side and the right side, a fixing buckle is fixed to the front end of a flexible bending plate, and a positioning mechanism, a first electric sliding rail and a second electric sliding rail are sequentially arranged on the upper wall of the interior of the equipment shell from back to front. The gastroscope snake bone pipe curvature detection device with the automatic screening function has the beneficial effects that a gastroscope snake bone pipe can be pulled through a clamping mechanism, so that the gastroscope snake bone pipe is straightened, the gastroscope snake bone pipe is prevented from being in a bent state before detection, detection data of the gastroscope snake bone pipe is prevented from being influenced, and the accuracy of equipment detection is reduced.

The invention discloses a disk part oblique plane point depth measuring method and device. The device comprises a dial gauge or a clock gauge; and the dial gauge or the clock gauge is connected with aturret of a numerical control machine tool through a magnetic gauge stand. During measurement, a surface of a disk part is selected, and the surface is located between a to-be-measured point and theturret of the numerical control machine tool; the turret is moved until the dial gauge or the clock gauge on the turret touches the selected surface, the dial gauge or the clock gauge is zeroed, and aZ-axis coordinate value of the numerical control machine tool is reset; and the turret is moved again until the dial gauge or the clock gauge on the turret touches the to-be-measured point, it is confirmed that the dial gauge or the clock gauge reads zero, and the Z-axis coordinate value of the numerical control machine tool is the depth value of the to-be-measured point at the moment. The depthof the point is rapidly measured without disassembling the disk part or using a special measuring tool.

The invention provides a cell counting instrument and an application thereof and relates to the technical field of biological particle detection. The cell counting instrument comprises a positive pressure control unit, a negative pressure control unit, a counting module, a processing system, an effluent container and a sheath fluid container, wherein the counting module comprises a micro-fluidic chip. Due to the arrangement of a liquid inlet, a feeding hole, an effluent hole and a micro-channel on the micro-fluidic chip and the arrangement of an electric pulse signal detection area on the micro-channel, the whole liquid flow system is more compact and effective and the absolute counting of whole sample amount is realized, so that the result accuracy and consistency of cell counting are better than those of the present method and the problems of low integration level of the instrument, small detected sample amount and inaccurate result caused by cell layering and suspension in the priorart can be relieved. The counting module is designed in a detachable form, so that the flexibility of the cell counting instrument system is promoted and the cell counting instrument can meet different detection requirements of users. The invention also provides the application of the cell counting instrument.

The invention discloses a die steel wear resistance testing device, and belongs to the technical field of wear resistance detection. The die steel wear resistance testing device aims at solving the problems that in the prior art that Brinell hardness or Rockwell hardness detection is mostly adopted when hardness wear resistance detection is conducted on metal, but the detection methods can only beused for metal after annealing or before heat treatment, and finished die steel cannot be detected. According to the die steel wear resistance testing device, an operation case is arranged on one side of a wear resistance detection equipment assembly; a touch control display screen is arranged on the outer surface of the operation case; a detection case is arranged on one side of the operation case; a fixed base is arranged at the bottom of the operation case and the bottom of the detection case; a transmission box body assembly is arranged above the detection case; a driving motor is arranged on one side of the transmission box body assembly; an air pressurizing pump is arranged below the driving motor; a detection working cavity is formed in the detection case; and clamp rails are arranged on the two sides of the detection working cavity.

The invention discloses a combustor and a gas stove. The combustor comprises an inner fire cover and a temperature sensor. An opening where the temperature sensor penetrates and is installed is formed in the top face of the inner fire cover. The detection end of the temperature sensor is upwards exposed out of the opening. An annular gap is formed between the outer circumferential face of the detection end and the circumferential edge of the opening, and the width of the annular gap ranges from 2 mm to 3 mm. According to the technical scheme of the combustor and the gas stove, the situation that the temperature sensor is affected by the high temperature of the inner fire cover or sucked flames can be avoided.

The invention provides a mechanical decontamination type water level alarm device and a use method thereof, and belongs to the field of alarm devices. The mechanical decontamination type water level alarm device comprises two supporting frames, an alarm lamp is installed at the top end of one side of one supporting frame, and water level detection probes used for detecting the river water level are installed at the bottom and in the middle of one side of the other supporting frame; a flood prevention mechanism is arranged between the two supporting frames. By arranging a limiting mechanism, a bowl-shaped paddle can rotate under the action of water flow or flowing wind, then a brush is driven to rotate to be matched with an annular spring to drive the brush to move up and down, and the brush can clean the ends of the water level detection probes in the moving process; most scales on the end parts of the water level detection probes can be cleaned, the scales on the water level detection probes are prevented from influencing the detection precision of the water level detection probes, and the problem that the measurement precision of the sensor is influenced by the scale easily generated on the surface of the sensor when the sensor at a low water level is soaked in river water for a long time in long-term use is solved.

The invention relates to an automatic lifting suction device which comprises a frame, a suction pump is arranged below the frame, a water inlet pipe and a water outlet pipe are installed on the suction pump, and a trap is installed at the end, away from the suction pump, of the water inlet pipe; according to the automatic lifting suction device, by additionally arranging the automatic lifting suction device, the frequency of collecting and releasing a net can be reduced, sudden outbreak marine organisms can be effectively dealt with, stable operation of a nuclear power unit is guaranteed, impurities on the sea level can be blown, the impurities can be prevented from influencing the detection precision of an ultrasonic liquid level, and therefore the reliability of seawater suction is improved, and the service life of the nuclear power unit is prolonged. And meanwhile, additional self-cleaning can be realized, and the filter screen is prevented from being blocked.

The invention provides a motor rotor detection assembly and a motor. The motor rotor detection assembly (100) comprises a mounting bracket (1) and a sensor (4), wherein one end of the mounting bracketcan be fixedly mounted on a motor stator (2) while the other end can extend to one axial side of a motor rotor (3) in a position opposite to the motor rotor; and the sensor (4) is arranged at the other end of the mounting bracket (1) and can detect the position of the motor rotor (3). By virtue of the motor rotor detection assembly, the sensor can be mounted to the accurate position, the detection precision is greatly improved, the motor efficiency is improved, the condition that the motor cannot operate can be prevented effectively, and continuous and effective motor operation can be ensured; and detection can be performed by keeping the position of the sensor unchanged, so that influence to the rotor detection precision caused by movement of the sensor can be prevented, thereby effectively improving rotor position detection accuracy.

The invention relates to the technical field of detection devices, and provides a detection device based on computer control, which comprises a workbench, and further comprises a limiting plate whichis installed on the workbench, a limiting groove is formed in the top part of the limiting plate; a lifting mechanism which comprises a lifting plate, a first guide rod and an air cylinder, the lifting plate is arranged on the workbench, one end of the first guide rod is fixedly connected with the workbench, the other end of the first guide rod penetrates through the limiting plate and then is fixedly connected with the workbench, and an air cylinder is installed on the workbench; a detection mechanism which comprises a plurality of detection units, and each detection unit comprises a rotatingdisc, a rectangular block, a second guide rod, a sliding block, a first electromagnet, a second electromagnet, a spring and a displacement sensor; a driving device which is used for driving each rotating disc to rotate; a display screen; and a computer control box. The detection device based on computer control provided by the invention is relatively high in hole detection efficiency and detection precision.

The invention provides a method for improving performance of a light splitter, a light splitter and an X-ray measuring and analyzing device, and belongs to the technical field of optical measurement. The light splitter suitable for the method comprises a shell, an entrance slit component, a light splitting crystal and an exit slit component, wherein the entrance slit component and the exit slit component are both arranged on the shell; and the light splitting crystal is arranged in the shell to serve as a reflector between the entrance slit component and the exit slit component. The method comprises the following steps: arranging a ray stop block in the shell of the light splitter and around the light splitting crystal in the shell; absorbing or blocking part of X ray which enters from the entrance slit component and irradiates on the inner wall of the shell by using the ray stop block; and absorbing or blocking part of the X ray which is reflected by the light splitting crystal to be irradiated on the inner wall of the shell. By using the method, the propagation path of the ray in the light splitter can be corrected so as to prevent influence of diffusion reflection on the X ray and obviously improve the performance of the light splitter.

The invention discloses a PCB copper-clad circuit skeleton contour extraction method based on an improved spur removal algorithm, and the method comprises the steps: searching eight neighborhoods of a pixel point, recording the pixel point according with a cross point principle as a cross point, and putting the cross point into a set Cross; setting the pixel value at the acquired cross point Cross from 1 to 0, putting all separated branch skeletons into a set Branchs, selecting a skeleton of which the Length feature is greater than Length from the skeleton set Branchs, and putting the selected skeleton into a set Trunk_Skeletion; selecting a trunk Trunk0 in the Trunk_Skeletion, calculating the tangential direction T1 of an end point of the trunk Trunk0, setting Cross0 corresponding to the end point from 0 to 1, traversing the Branchs, calculating the tangential direction of a branch near the end point, and if the tangential direction and the T1 form an angle of 180 degrees, merging the branch to obtain a new trunk Trunk0; traversing elements in the Trunk_Skeletion, repeating the operation in the step S3, and finally obtaining a plurality of trunk skeleton lines Trunk0, Trunk1, Trunk2...; S4, combining the Trunk 0, the Trunk 1, the Trunk 2 and the like obtained in the step S4, and obtaining the whole main skeleton Main_Skeletion. According to the extraction method, the outline of the PCB circuit skeleton can be effectively extracted.

The invention relates to a medium detection device and method, a storage medium and cleaning equipment, belonging to the technical field of electronics. The medium detection device comprises: a firstconductive assembly and a second conductive assembly which are installed at different positions of a pipeline of target equipment; and a detection assembly which is electrically connected with the first conductive assembly and the second conductive assembly and detects the conductive state between the first conductive assembly and the second conductive assembly so as to detect the medium state ofa conductive medium. By means of the above mode, the medium state of the conductive medium can be detected by detecting the conducting state of the pipeline, and therefore, the use condition of the conductive medium can be determined, whether a water pump idles or not can be determined in time, and the service life of the cleaning equipment is prolonged.

The invention relates to the technical field of horizontal well cable protection, in particular to a horizontal well cable protection device and an application method. The horizontal well cable protection device comprises an outside well pulley bracket, an inside well pulley bracket, an an outside well pulley and an inside well pulley. The outside well pulley bracket and the inside well pulley bracket are fixedly connected. The lower end of the inside well pulley bracket is of a triangle structure connected with a well head edge corner in a matching mode. The inside well pulley is rotatably connected with the inside well pulley bracket. The outside well pulley is rotatably connected with the outside well pulley bracket. The left end of the outside well pulley bracket is fixedly connected with a magnetic marker. The center lines of the magnetic marker, the inside well pulley and the outside well pulley are positioned in the same plane. The left end of the outside well pulley bracket isfixedly connected with a compression air pipe. An air outlet of the compression air pipe is located between the magnetic marker and the outside well pulley. Friction loss of the cable can be lowered,the cable can be cleaned, cable corrosion can be avoided, and meanwhile influence on detection accuracy of the magnetic marker by metal impurities is avoided.

The invention discloses a noise detection device used for a motor load and a work method thereof. The noise detection device used for the motor load comprises a worktable, a clamping mechanism and a jacking mechanism, the worktable comprises a supporting frame arranged on the worktable and a detecting device mounted on the supporting frame, the clamping mechanism comprises a connecting frame mounted on the worktable, a clamping motor mounted on the worktable and connected with the connecting frame and a clamping assembly mounted on the output end of the clamping motor, the jacking mechanism comprises a driving shaft connected with a third conical gear, a fourth conical gear arranged on the other end of the driving shaft and a jacking assembly engaged with the fourth conical gear, through the clamping assembly, positioning work of the motor can be achieved, it is ensured that during detecting work of the motor, the motor cannot collide with the device to generate new noise, therefore, the detection precision of the detection device is not affected, and the detection precision of the device is ensured.

The invention discloses a bridge concrete structure real-time detection device , and relates to the technical field of concrete detection. The bridge concrete structure real-time detection device comprises a supporting seat. Three supporting legs which are distributed in a surrounding mode at equal intervals are hinged to the bottom of the supporting seat, and a fixing frame is connected to the top of the supporting seat in an inserted mode. The part, slidably connected into the supporting seat, of the bottom of the fixing frame is fixedly connected with the bottom of an inner cavity of the supporting seat through a reset spring. Three connecting pieces distributed at equal intervals are fixedly connected to the inner side of the fixing frame, and the fixing frame is fixedly connected with a limiting ring through the connecting pieces. Compared with a traditional springback instrument handheld detection mode, the bridge concrete structure real-time detection device can effectively ensure the stability of a springback instrument when the springback instrument makes contact with a concrete structure, the measurement error caused by misoperation in the manual operation process is eliminated, and meanwhile, a gas collecting mechanism is matched with a gas spraying mechanism to clean the detected part of the concrete structure.