11results about How to "Improve detection resolution" patented technology

The application discloses a tunnel boring machine space dynamic compensation seismic wave advanced detection method and system, comprising: receiving the reflection echo data of the current space position; compensating the reflection echo data according to the attenuation compensation factor of the current space position, wherein the attenuation compensation factor of the current space position is obtained by a trained neural network, and the prediction process comprises: after curve fitting of the attenuation compensation factor of the reflection echo data of the detected space position, the attenuation compensation factor of the next space position is predicted by using the trained neural network; the compensated reflection echo data is subjected to geological body imaging by using the equal travel time imaging method, and the geological body detection result is obtained according to the amplitude difference on the imaging profile. The space dynamic compensation algorithm of the mechanical wave attenuation is used to adaptively correct the attenuation compensation factor at the next tunneling surface, so as to compensate the received reflection echo data and enhance the identification ability of the reflection echo.

The application provides a multifunctional liquid detection method based on array tag coupling interference suppression, which comprises the following steps: arranging an RFID tag array and an RFID reading device on both sides of the liquid to be detected within a set range; collecting a radio frequency signal to obtain original signal data affected by the liquid dielectric constant and mutual coupling effect between the tags; obtaining preprocessed signals; processing the preprocessed signals by using a coupling interference suppression algorithm, modeling and quantifying the mutual coupling effect, stripping the signal distortion caused by the mutual coupling effect from the preprocessed signals, and obtaining pure signal eigenvalues; and inputting the signal eigenvalues into a pre-trained classification and recognition model to obtain the type or concentration detection result of the liquid to be detected; by eliminating the main interference source of the multi-tag sensing, the extracted signal characteristics can more truly reflect the dielectric properties of the liquid, thereby greatly improving the detection accuracy and significantly improving the detection precision and resolution.

The utility model discloses a powder strength testing device, contain: base, powder determination module, powder determination module sets up on the base for placing and moving powder, powder measurement module, powder measurement module sets up on the base for detecting the powder intensity on powder determination module from horizontal direction, observation module, observation module sets up the top of powder determination module and powder measurement module for observing and gathering the process of powder measurement, control module, control module and powder determination module, powder measurement module and observation module electric connection. The utility model creatively changes the probe pressure intensity direction of powder measurement from vertical to horizontal, overcomes the influence of the self weight of particle needle and other structures, greatly improves the detection resolution of the extremely small destructive force to soft particles, and the minimum resolution can reach below 0.01 muN.

The utility model relates to a kind of tunnel construction dust detection devices including sampling gas path, dust detector based on light signal and signal transmitter;Sampling gas path, including air inlet pipeline, optical observation cavity and air outlet pipeline;Dust detector, including the light source of setting at the optical observation cavity of sampling gas path, light path and sampling gas path are orthogonal;Area array photoelectric detector is connected with transmitter electric signal;Signal transmitter, including radio frequency antenna, for the signal of area array photoelectric detector received is sent to the receiving end of collected data.The tunnel construction dust detection device provided by the utility model realizes the real-time dust detection of anti-interference by sealing, independent sampling gas path and independent, isolated light signal path relative to sampling gas path.Optimized scheme, detection laser is shaped into narrow light spot, adopts double-wavelength detection, cooperates with impact type pre-separator, realizes the dust detection resolution improvement of different dimensions such as detection time, detection granularity.

The application discloses a hot oil abrasion test equipment for a rolling friction sleeve of an electronic disconnector, which comprises a tool seat, a tool frame and a main shaft shafting, the friction sleeve is detachably connected to the main shaft shafting, an oil bath heating box for placing the friction sleeve is arranged on the tool seat, a driving piece for driving the main shaft shafting to rotate is arranged on the tool frame, a secondary friction assembly for cooperating with the friction sleeve is arranged on the oil bath heating box, a loading structure for providing a controllable loading force to the secondary friction assembly and accurately detecting the micro-abrasion displacement of the secondary friction assembly is arranged on the tool frame, and an eccentric posture adjusting structure for adjusting the relative position and angle of the secondary friction assembly is arranged on the oil bath heating box. The application solves the problem that the prior art lacks a special test equipment for the rolling friction sleeve of the electronic disconnector of a new energy vehicle, so that the high-temperature hot oil lubrication, rotating operation, controllable load and eccentric posture multi-parameter coupling working conditions of the real work cannot be reproduced synchronously.

The application relates to the technical field of hydrogen concentration optical visual detection, in particular to a hydrogen concentration detection device which comprises a detection table, an optical testing device body arranged on the detection table, a detection pipeline body in communication with one end of the optical testing device body, visual detection of a to-be-detected gas by the optical testing device body after the to-be-detected gas enters the detection pipeline body, a joint, a mixing assembly, a buffer assembly, a speed reduction assembly and a reflection assembly arranged in the detection pipeline body in sequence along a gas entering direction; the mixing assembly, the buffer assembly, the speed reduction assembly and the reflection assembly are arranged in the detection pipeline body in sequence, and the optical testing device body is combined with the optical regulation and control means of a beam splitter and a concave lens, the problem of uneven hydrogen distribution is solved through the mixing assembly, the gas flow rate is reduced and the contact time is prolonged through the buffer and speed reduction assembly, and finally the optical path is significantly prolonged through the optical assembly, and the detection signal is enhanced.

This invention belongs to the field of carbon fiber winding technology for hydrogen storage cylinders, specifically a multi-layer integrated high-pressure hydrogen storage cylinder winding device, including a process plug. A main body unit is externally mounted on the process plug, and a positioning unit is internally mounted on the main body unit. A detection unit is coaxially mounted on one side of the process plug. This invention utilizes the linkage structure between the T-segment column, the inverted surface open ring, and the convex engagement column to convert the pressure loss corresponding to a single weak jump into an accumulated axial mechanical displacement. By adjusting the actual meshing ratio between the planetary gear and the gear ring, as well as the pitch of the spiral groove on the outer wall of the angle rod, it achieves axial differential displacement output from the two actuators. This causes the axial movement speed of the trigger limit column to lead the axial movement speed of the T-segment column, converting the accumulated axial displacement into a progressive rotary feed motion. Only when the accumulated jump degradation reaches the process-set threshold is an alarm and intervention action triggered through mechanical contact between the electrode column and the electrode sensing rod.

The invention belongs to the technical field of infrared thermal wave imaging, and particularly relates to a blind structure polarization modulation infrared thermal wave super-resolution imaging detection system and method, and the system comprises an infrared camera, a processor, a signal generator, a power amplifier, a semiconductor laser, and a structured light modulator. A super-resolution detection image is reconstructed through instantaneous phase difference images of thermal wave signals and linear frequency modulation signals under different spatial polarization phases, and the spatial resolution of infrared thermal wave imaging for detecting tiny defects and complex edge defects is improved.

The invention relates to a linear array active synthetic aperture long-distance detection method, device and equipment, and the method comprises the steps: S1, orthogonal signal emission control: fixedly setting a cyclic emission period of an orthogonal signal group according to the farthest detection distance to be realized by a linear array; according to the linear array forward distance required for avoiding space undersampling and the navigational speed monitored in real time, the sequential transmitting period of each orthogonal signal is dynamically controlled, and each transmitting period and the navigational speed corresponding to the transmitting period are recorded. According to the method, the constraint of the aperture length of the linear array on the detection distance of the synthetic aperture can be overcome, the active synthetic aperture long-distance detection is realized by using the small-size linear array, and the detection resolution of a long-distance target is remarkably improved on the premise of avoiding the interference of direct waves of orthogonal signals.

The utility model relates to hand button appearance inspection technical field, concretely relates to a hand button high accuracy appearance inspection line body device of bottom light source supplementing. Including detection station, the center position fixed mounting of detection station upper side wall annular guide rail, the top of annular guide rail sliding installation has several equidistance distribution's fixed plate, the top fixed mounting of fixed plate has the bearing station. The utility model, through setting the square light source located in the industrial camera right below, when the bearing station moves to the detection station, the light of square light source penetrates the through -hole directly and irradiates the car button shell bottom, carries out the full light supplement to the inside light guide plate, has strengthened the light and dark contrast of light guide area and shell surface, makes the industrial camera can clearly capture the demarcation between light guide plate and car button shell, thereby realizes the high accuracy measurement of the position relation between laser engraving pattern and light guide plate trepanning, promotes the detection resolution and accuracy.

The AR laser emitter and the AR device are disclosed. The AR laser emitter comprises a speckle structure, two L-shaped support frames and a vertical cavity surface laser emission module. The two support frames are oppositely arranged. The speckle structure is arranged on the side of the two first arms away from the second arms. The vertical cavity surface laser emission module is arranged on the side of the two second arms close to the first arms. The opening between the two first arms is a first light outlet. The opening between the two second arms is a second light outlet. The vertical cavity surface laser emission module is used to generate a first laser and emit it towards the first light outlet. The vertical cavity surface laser emission module is also used to generate a second laser and emit it towards the second light outlet for eye tracking. The speckle structure is used to generate speckle structure light according to the first laser for 3D modeling. The AR laser emitter has the characteristics of simple structure, small size, high detection resolution and accurate detection.