149results about How to "Intuitive measurement results" patented technology

The invention discloses a high-dam large-reservoir hydropower station flood discharge gate dynamic monitoring method. The method comprises the steps of: firstly, placing a shooting three-coordinate measuring system at the position to be detected of a gate; obtaining a gate monitoring image of the position to be detected of the gate; then utilizing a triangulation principle to calculate position coordinates of characteristic mark points of the gate monitoring image; then calculating position deviations and deformation displacement amounts of the coordinates corresponding to each characteristic mark point of the gate monitoring image; and finally, judging whether the deformation displacement amounts exceed a prescribed requirement. According to the invention, the three-dimensional shooting measuring system is adopted to detect the deformation state of the hydropower station gate, the problem that the deformation measurement of hydraulic metal structural gate prototype observation is limited by field conditions and restricted by measurement precision is solved, and the three-dimensional shooting measuring system detects the deformation of the hydropower station gate based on a three-dimensional visual imaging technology; in addition, the method is applicable to the deformation measurement of a hydropower station flood discharge tunnel arc-shaped gate, and the method has the advantages that the usage and operation are simple, the data collection is convenient, and the measurement result display is visual.

The invention relates to a laser screen target tachymeter and a ballistic trajectory capturing method, wherein the laser screen target tachymeter and the ballistic trajectory capturing method are applied to velocity measurement of a bullet. The laser screen target tachymeter is characterized by comprising a microprocessor unit, a display touch screen unit for display and operation, an X-axis laser screen transmitting unit, a laser receiving unit of an X-axis receiving laser screen, a Y-axis laser screen transmitting unit, a laser receiving unit of a Y-axis receiving laser screen and a signal processing circuit unit. The ballistic trajectory movement locus of the bullet can be traced out in the space through multiple points while velocity is measured, and compared with a ballistic trajectory measuring method in the prior art, the ballistic trajectory capturing method is low in cost, simple in principle, high in efficiency, free of influences of visibility of external environment and visual in measuring result.

The invention discloses a friction corrosion fatigue test device and a friction corrosion fatigue test method of a heavy-load scraper plate conveyor circular chain. The friction corrosion fatigue test device comprises the following modules of a loading simulating system which applies a dynamic tension and an impact load on the circular chain through an electric cylinder and an impact plate; a heating simulating system which heats the inner part of a middle trough simulating box through a fan and a PCT electric heater; a friction simulating system which drives the middle trough simulating box through the electric cylinder for applying a friction force on the circular chain; a corrosion simulating system which is realized through adding corrosion media into the middle trough simulating box; and a monitoring system which realizes monitoring on the dynamic tension, the friction force, the impact load, the temperature, the corrosion wearing rate and the fatigue life of the circular chain through a plate ring tension sensor, a three-dimensional force sensor, a temperature sensor, a temperature control box, an auxiliary electrode, a working electrode, a reference electrode and an electrochemical work station. The friction corrosion fatigue test device and the friction corrosion fatigue test method have advantages of convenient operation, comprehensive and reliable testing result, and important guiding meaning in safe and reliable operation of the heavy-load scraper plate conveyor circular chain in a complicated operation environment.

The invention discloses a device for measuring creep of a torsion bar. The device for measuring creep of the torsion bar comprises a base, a front bracket, a rear bracket, a front joint, a rear joint, a limiting screw, an index dial and a pointer, wherein the front bracket and the rear bracket are symmetrically mounted on two ends of the base; a threaded through hole is formed in the upper end surface of the front bracket; the two ends of the torsion bar are inserted into through holes of the front joint and the rear joint respectively; the front joint is not fixed at the periphery of the front bracket; the rear joint is fixed at the periphery of the rear bracket; a through hole is radially formed in the front joint; when the torsion bar rotates along with the front joint, the through hole of the front joint is just coaxially aligned at the threaded through hole in the upper end surface of the front bracket; the limiting screw is screwed into the threaded through hole and the through hole of the front joint, so that the torsion bar maintains a fixed angle; the index dial is mounted on the front end surface of the front bracket; the pointer is mounted at the end part of the front joint; the pointer rotates along with the rotation of the torsion bar; the creep is read by the index dial which is indicated by the pointer. The device for measuring the creep of the torsion bar is simple in structure, small in occupation area, easy to manufacture, easy in measurement and high in accuracy; a pure mechanical measurement manner is adopted; the measured results are intuitive.

The invention discloses a device and method for measuring the dynamic extinction ratio of pulsed light with a high dynamic range. The device comprises a light source, a first optical fiber coupler, a modulator of pulsed light to be measured, a modulator of reference pulsed light, a second optical fiber coupler, a photoelectric detector and a data collecting and processing module. Two beams of continuous light divided from continuous light are modulated into the pulsed light to be measured and the reference pulsed light, beat frequency optical signals produced after the pulsed light to be measured and the reference pulsed light are in coherent coupling are converted into beat frequency current signals, the beat frequency current signals are processed, electric power of pulse peak optical power and electric power of substrate optical power of the pulsed light to be measured, and electric power of PD dark current noise are obtained, and the dynamic extinction ratio of the pulsed light to be measured is calculated according to the obtained electric power. Through single measurement, the power of the peak and the power of the substrate of the pulsed light to be measured and the power of the dark current noise of the photoelectric detector are obtained at the same time, the dynamic extinction ratio of the pulsed light is measured, the measurement efficiency is high, the precision is high, and the dynamic range is large.

The invention discloses a method for detecting the abrasion amount on the contactor of vacuum circuit breakers, and a device thereof, wherein one end of the dynamic conductor pole of a vacuum circuit breaker is arranged with a reflecting device, the reflecting surface of the reflecting device is oppositely arranged with an incident light source and a reflected light receiver, the reflected light receiver receives the light emitted from the incident light source and reflected by the reflecting device. When the contactor is abraded, the angle position of the reflecting device changes, to cause the change of the receiving position of the light beam reflected by the reflecting device, the method measures the receiving position change of the reflected light beam, and utilizes the trigonometric function among the abrasion amount of the contactor, the incident light source, the reflected light receiver and the reflecting device, to calculate the abrasion amount of the contactor via a single chip and display the result on a display unit. The invention has the advantages of simple and fast operation, visual displayed measurement result and high measurement precision.

The invention discloses a device for detecting the vibration isolation performance consistency of an oversized optical platform. The left end of a central line on the optical platform is provided with a bracket; the right end of the central line on the optical platform is provided with a display screen; the left side of the bracket is provided with a laser; the wavelength of the laser is 632.8 nanometers; the laser is provided with a CCD (Charge Coupled Device) camera which is connected with a computer through a lead; the right side of the laser is provided with a beam splitter along a central line emitting direction bracket in the length direction of the optical platform; at least six even number left reflecting mirrors are arranged in the laser emitting direction of the beam splitter on the optical platform; the optical platform along the light reflecting directions of the left reflecting mirrors is provided with water-filled water grooves of which the quantity is the same as that of the left reflection mirrors; a light diaphragm is arranged in the light reflecting direction of the left reflecting mirror at the upper end of the central line of the left side wall of each water groove; the optical platform in the inner water surface light reflecting direction of each water groove is provided with right reflecting mirrors of which the quantity is the same as that of the left reflecting mirrors; and a display screen is arranged at the right end of the central line of the optical platform in the light reflecting directions of six right reflecting mirrors.

The invention discloses a three-dimensional reconstruction based explosive fluidity measuring method, which comprises the following main operation steps: acquiring explosive frame image data shot by three cameras and explosive dynamic mass data weighted by an electronic balance in an explosive fluidity measuring device in real time and synchronously; and performing treatment such as filtering, feature value extraction, stereo matching, 3D reconstruction by a voxel method in sequence on three images in a frame of image at a manually selected sampling moment, obtaining an instantaneous density value of explosive falling into a standard transparent cup at a corresponding moment, performing the treatment on frame images at different moments, obtaining a group of explosive instantaneous density values changing with time, and drawing an explosive fluidity curve according to the group of explosive instantaneous density values. The method makes the explosive fluidity measuring device really realize automatic and objective measurement function on the explosive fluidity, and has the remarkable advantages of strong real-time, quick calculation speed, intuitive measuring results and high precision.

The invention discloses a dynamic frictional force torque test set of a free wheeling clutch, and the dynamic frictional force torque test set comprises a controlling system, a testing system, and a testing device; wherein, a computer of the controlling system controls a motor of a drive mechanism through a sensor and a velometer; the motor is connected with a drive axle through a synchronous belt, the drive axle is connected with a chief axle through a clutch, the output end of the chief axle is connected with a fixed tray, an inner sleeve and an outer sleeve are arranged between the fixed tray and a relative supporting tray, and the supporting tray is fixed by a double supporting block; the tested piece is arranged between the inner sleeve and the outer sleeve and is used for three testing states: an inner frictional force torque test, an outer frictional force torque test, and a banding frictional force torque test. The complete machine has simple structure, friendly interface, and convenient operation; the invention can set the parameters such as the testing rotating speed, the sampling time, and the sampling frequency; the testing data is correct and reliable, and the testing precision is high; after being analyzed and processed by a computer software, therefore, not only the test result can be displayed in dynamic state and in visible state, but also the relative data can be analyzed and collated, and the finished testing result can be stochastically displayed, output, and archived.

The invention relates to a method for detecting softness of hairiness on surface of clothing and a detection apparatus thereof, and relates to a method for detecting quality of a weaving product and an apparatus thereof, and especially relates to a method for detecting quantity and softness of hairiness on surface of clothing and the detection apparatus thereof. The method comprises the following steps: selecting a model of human body, embedding a touch force sensor, obtaining the touch force data and contact form image data generated by contact of hairiness on the surface of clothing and the model of the human body, and quantification performance index for reflecting softness of hairiness on surface of clothing and evaluating wearing comfort level of the clothing is constructed through data analysis. According to the method and the apparatus, the high-precision touch force sensor is employed for obtaining the data, a contact state image of the hairiness on the surface of the clothing and the model of human body can be obtained by an optical image collection unit, operation is convenient and simple, experiment data is objective, precision is high, and reliability is strong; the touch force sensor is used for directly obtaining contact force of fiber and skin but not frictional force, and the contact force is closer to the contact force influence of real wearing hairiness of the clothing and the human body.

The invention discloses a gear ring length dimension gauge. The gauge comprises a base, a slider, a shaft seat, an instrument and an instrument frame. The instrument frame is mounted on the base and consists of a vertical rod and a horizontal rod which are intersected with each other; the instrument is assembled at the end of the horizontal rod. An internal open groove is formed in a plate surface of the base; the two sides of the open groove are provided with upward bevels. The bottom surface of the slider is matched with the upward bevels on the two sides of the open groove of the base to form a straight rail structure; the inner side surface of one upwards-bent side is provided with a V-shaped groove vertical to the straight rail. A circular bead is arranged at the top end of the shaft seat and has clearance fit with an inner hole of a work-piece; the shaft seat is moved so that the outer wall of a main shaft section is located close to the bevel of the vertical V-shaped groove of the slider. The gear ring length dimension gauge disclosed by the invention belongs to mechanical measurement and is low in requirements on detection condition, quite simple in structure but precise in measurement results, convenient to operate and especially suitable for being arranged in a production field. One-line detection is beneficial for finding out quality deviation in time, and occurrence of batch scrap accidents is prevented.

The invention discloses a high-precision visual testing device and method for the influence factors of wellbore sulfur precipitation. The high-precision visual testing device comprises a supply system, a wellbore condition simulation system, a magnetic suspension balance measuring system, a visual data collecting system and a tail gas treatment system. The high-precision visual testing device andmethod have the beneficial effects that the device can truly simulate any types of wellbores, the temperature and pressure of any positions and different phase states of sulfur, the sulfur precipitation influence factors can be measured and analyzed qualitatively by changing temperatures, pressure, precipitation time, hole deviation angles, the content of hydrogen sulfide and the content of water,the testing precision of sulfur precipitation quantity and precipitation speed can be greatly improved, and the precipitation dynamic condition and the sedimentation dynamic condition of sulfur in awellbore are observed through high-power microscope in real time; and when sulfur elements suspend in the wellbore, the critical suspended velocity and the minimum sulfur carrying gas production rateof the sulfur under different states can be calculated. The high-precision visual testing device and method have the advantages of good safety, high measuring precision, high temperature and pressureresistance, high corrosion resistance and the like, thereby having very important significance to research of high sulfur content gas wellbore sulfur precipitation laws.

The invention relates to a test method and a test device of confining pressure in steel tube concrete. The test method of the confining pressure of a steel tube to core concrete is characterized in that a miniature waterproof pressure gauge is fixedly arranged on the inner wall of the steel tube, and the core concrete transversely deforms under a loading action and generates corresponding deformation strain through a pressure slice arranged on the miniature waterproof pressure gauge to directly obtain the confining pressure thereof. The test device thereof comprises an outer circle steel ring, the pressure slice, a resistance strain gauge, a data line, a waterproof sealing layer and a data collection system, wherein the pressure slice, the back of which carries the resistance stain gauge, is arranged at one side of a groove of the outer circle steel ring, wrapped completely for waterproofing and sealing and connected to the data collection system through the data line. A test result thereof is intuitive and accurate, and the test device has the advantages of simpleness, convenience and low cost.

The invention discloses a binocular pupil light reflex tracking system. The binocular pupil light reflex tracking system comprises a grabbing type binocular pupil detection device imaging system and a pupil tracking and measuring module. The imaging system comprises two infrared cameras, two infrared lighting light sources, two stimulation light sources, a grabbing type device and a single-chip microcomputer. The infrared cameras, the lighting light sources, the stimulation light sources and the single-chip microcomputer are integrated in the grabbing type device, the cameras and the light sources are connected with the single-chip microcomputer, and the single-chip microcomputer is in charge of signal control and data input and output. The pupil tracking and measuring module is integrated in the single-chip microcomputer, images collected by the single-chip microcomputer are tracked and measured, and the measuring result is analyzed. The system further comprises a movable seat matched with a handle, and a suspension assembly. The system is high in adaptability, capable of being applied to first-aid and field occasions and the like, and wide in application prospect.

Disclosed are a BRDF (Bidirectional Reflectance Distribution Function) automatic test system and a test method. The test system comprises a solar simulator, an electric displacement table, a detectionsystem, a BRDF spectrum automatic acquisition system, and a BRDF data processing system. The solar simulator emits a visible light beam to irradiate a sample on the electric displacement table. The electric displacement table is used for realizing movement and rotation of the sample in a three-dimensional space. The detection system comprises a movable platform, a two-dimensional rotary platformmounted on the movable platform, a telescope, a fiber probe, and a spectrometer connected with the optical fiber probe through detection optical fibers. The BRDF spectrum automatic acquisition systemis used for controlling motions of the electric displacement table, so that the electric displacement table drives the sample to rotate at any angle in the space. The spectrometer controlling the detection system collects scattering spectrums at any angle of the sample. The BRDF data processing system is used for processing collected spectrum data to obtain BRDF data at any angle. The BRDF automatic test system is adjustable in detection distance, can achieve detection of long-distance and large-volume objects, and is high in detection precision.

The invention discloses a dynamic liquid level wireless monitoring method and system. The method comprises following steps: acquiring distance data needed for dynamic liquid level measurement through the cooperation of multiple ultrasonic sensors; calculating the liquid level height through an improved distance difference-gradient algorithm according to the acquired distance data, so that the actual liquid level height can be obtained; sending the calculated actual liquid level height to a remote monitoring terminal through an Xbee wireless manner; and the remote monitoring terminal displays the received actual liquid level height on the graphical interface and broadcasts the actual liquid level height through voice, so that the dynamic liquid level is remotely monitored. According to the invention, the actual liquid level height under a liquid level inclination condition can be accurately measured, and the method and system can be more widely used; the method and the system utilizes ad-hoc network characteristics of an Xbee module, so that the expansion of a sensor network system is facilitated; measuring results can be visually provided for users, and the results are more visual; and the method and the system can be widely applied to the liquid level measurement field.

The invention discloses an inner contour measuring meter which consists of two parts, namely a commodity dial gauge and a self-control gauge head, wherein an original gauge head is detached from a purchased dial gauge, and axial internal thread holes are reserved at the end face of a measuring rod of the dial gauge; the configured gauge head is in the shape of a two-way right-angled bent rod; and external threads at an upward end are connected with the axial internal thread holes at the end face of the measuring rod of the dial gauge, and a downward end is a measuring end which can extend into an inner cavity of a workpiece to perform measurement. The structure is especially suitable for measuring the inner contour in a machine element with small inner cavity volume, and the measurement result is indicated by external dial gauge magnitude values. On the other hand, the inner contour measuring meter disclosed by the invention is a mechanical measuring device, has no special restrictions on detection conditions, can be used in a production field, and is high in detection efficiency and low in use cost; and in a product line, the inner contour measuring meter used as the measuring device of an operator can be used for avoiding the occurrence of batched outoftolerance accidents.

The invention discloses a wall brick hygroscopic-expansion-deformation dynamic testing instrument and testing method. The testing instrument comprises a dial indicator, a measuring frame, an electronic balance, a humidistat, a balance hood and a computer, wherein a glass dial indicator pedestal and a glass specimen pedestal are respectively provided with holes, and two quartz tube end sockets are respectively arranged in the holes on both sides; a first threaded rod is respectively arranged in each quartz tube, and is fixedly connected with a first nut and a second nut, and a first spring washer, a second spring washer, the quartz tube, the glass dial indicator pedestal and the glass specimen pedestal are respectively connected flexibly; the balance hood is used for ensuring the humidity in the humidistat from interference of the external environment; and a crystallizing dish containing a saturated solution is arranged in the humidistat and used for controlling and maintaining the humidity in the box body. The dynamic testing instrument can dynamically measure the air hygroscopic expansion deformation amount and hygroscopic capacity of the wall brick to obtain the expansion value-humidity content characteristic curve under isothermal conditions, thereby enhancing the measurement accuracy.

The invention provides an electronic measuring device comprising a housing and a stretchable measuring tape installed in the housing. A measuring tape inlet-outlet unit is formed in the housing. In addition, the electronic measuring device also includes an automatic reading module and a prompting module. The automatic reading module consists of a reading unit arranged in the housing and a marking scale arranged at the measuring tape. When the device is used for measurement, the automatic reading unit is used for automatically reading the marking scale of the measuring tape and outputting a corresponding measurement result to the prompting module. The prompting module is used for prompting the user of the measurement result. The electronic measuring device is used for measurement of a human body or some non-linear objects. The automatic reading module reads measurement data automatically, so that the measurement efficiency is improved and the measurement data are standardized; the device can be carried conveniently; and errors are reduced.

The invention discloses a portable binocular pupil detection device. The portable binocular pupil detection device comprises a grabbing type binocular pupil detection equipment imaging system and a pupil tracking and measuring module. The imaging system comprises two infrared cameras, two infrared illumination light sources, two stimulation light sources, grabbing equipment and a single-chip microcomputer, wherein the infrared cameras, the illumination light sources, the stimulation light sources and the single-chip microcomputer are integrated in the grabbing equipment, the cameras are connected with the light sources and the single-chip microcomputer, and the single-chip microcomputer takes charge of control of signals and input and output of data; the pupil tracking and measuring module is integrated on the single-chip microcomputer, images collected by the single-chip microcomputer are tracked and measured, and the measurement result is analyzed and processed. The portable binocular pupil detection device is high in portability and can be applied to the occasions of emergency rescue, fields and the like, the measurement result is accurate and visual, and the portable binocular pupil detection device has broad application prospects.