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51results about How to "Improve performance detection efficiency" patented technology

Method and device for detecting performance of EBS dual-channel bridge module

The invention discloses a method and device for detecting the performance of an EBS dual-channel bridge module. The device for detecting the performance of the EBS dual-channel bridge module comprisean air circuit mechanism for realizing a test method of the performance of an assembly in the EBS dual-channel bridge module and a blocking mechanism used in the test. The air circuit mechanism comprises an air source, an air storage tank, an electromagnetic valve, an air pressure sensor and the like. The blocking mechanism comprises a test bracket, a test pressing part, a test blocking part and the like. According to the method and device for detecting the performance of the EBS dual-channel bridge module, the defects of the method and device for detecting the performance of the EBS dual-channel bridge module in the field are overcome, the detection efficiency can be improved on the premise of ensuring the detection accuracy so as to adapt to automatic detection equipment for fast-paced development of braking parts in industrial production, production enterprises for producing the dual-channel bridge module can conveniently complete efficient product quality control, and very important practical significance for improving the market competitiveness of the EBS dual-channel bridge module is achieved.
Owner:HANGZHOU WOLEI INTELLIGENT TECH

Large-aperture optical element high-speed detection system based on ultrafast microscopic imaging

The invention provides a large-aperture optical element high-speed detection system based on ultrafast microscopic imaging. The system is characterized in that a first coupler sends one path of wide-spectrum ultrafast pulse laser to a microscopic imaging device, and the other path of the wide-spectrum ultrafast pulse laser is sent to a second coupler through a delay line; a microscopic imaging device divides the wide-light-path ultrafast pulse laser into a plurality of parallel incident light signals with different wavelengths, the parallel incident light signals are vertically incident to different positions of an optical element to be measured, and spatial light signals reflected back or transmitted out from the different positions of the optical element to be measured are transmitted to the second coupler; the second coupler is used for coupling the wide-spectrum ultrafast pulse laser subjected to delay processing with the spatial light signal to generate an interference signal; a dispersion compensation optical fiber performs time domain stretching on the interference signal; a detector converts the interference signal after time domain stretching into an interference electric signal; and an acquisition and processing device determines instantaneous phases of different positions on the optical element to be measured at any moment according to the acquired interference electric signals. The system is wide in detection range and high in efficiency.
Owner:CHONGQING UNIV

Performance detection method and device for image recognition model, server and storage medium

The invention provides a performance detection method and device for an image recognition model, a server and a storage medium, and belongs to the technical field of the Internet. The method comprisesthe following steps: obtaining a set of test samples, wherein the test sample set comprises a plurality of test samples and a plurality of corresponding real labels; respectively inputting the plurality of test samples into a to-be-detected image recognition model, acquiring a plurality of prediction tags output by the image recognition model, acquiring a plurality of text similarities, using onetext similarity to represent the similarity between the real tag and the prediction tag of one test sample, and determining the recognition accuracy of the image recognition model according to the plurality of text similarities. The recognition accuracy of the model is determined according to the plurality of text similarities, the method can be compatible with label systems of various image recognition models, the performance detection of the model can be realized without re-labeling a sample, the consumption of time and cost is greatly reduced, and the efficiency of the performance detection of the model is improved.
Owner:BEIJING DAJIA INTERNET INFORMATION TECH CO LTD

On-site detection device for high-elasticity rubber asphalt composite crushed stone seal

The invention discloses an on-site detection device for a high-elasticity rubber asphalt composite crushed stone seal. The on-site detection device comprises a vehicle body, an electric rotating shaft, a water seepage instrument, a rolling device, an improved pendulum friction instrument and a drill core sampling device, and is characterized in that the electric rotating shaft, the water seepage instrument, the rolling device, the improved pendulum friction instrument and the drill core sampling device are positioned in the vehicle body, the electric rotating shaft is mounted at the top in the vehicle body, every two of the rolling device, the improved pendulum friction instrument and the water seepage instrument are mounted at an included angle of 120 degrees by taking the electric rotating shaft as a center, and the core drilling and sampling device is positioned on the other side of the vehicle body. According to the on-site detection device, the detection of four indexes of on-site skid resistance, skid resistance, density and void ratio of the high-elastic rubber asphalt composite chip seal can be realized, multiple functions are integrated, the efficiency and precision of performance detection are greatly improved, the defects of core drilling and sampling are overcome, and the device has important guiding significance for construction of the composite crushed stone seal.
Owner:泗洪县城市建设投资经营集团有限公司

Automobile brake pad manufacturing performance detection device and detection method

The invention provides an automobile brake pad manufacturing performance detection device and method, and relates to the technical field of automobile brake pad detection.The automobile brake pad manufacturing performance detection device comprises a bottom plate, a clamping mechanism used for fixing a brake pad and a detection mechanism used for performance detection, the clamping mechanism is fixedly installed on the bottom plate, and the detection mechanism is arranged at the side end of the clamping mechanism; in addition, the automobile brake pad performance detection device can solve the problems that when an existing automobile brake pad performance detection device carries out performance detection, multi-point detection is not carried out, so that the performance detection effect of the automobile brake pad performance detection device does not reach the expectation, and the automobile brake pad performance detection device cannot simulate the effect which can be expressed by the brake pad on the occasions of rainwater or ice and snow; and 2, an existing automobile brake pad performance detection device needs to carry out hundreds of times and thousands of times of experiments, but an existing mode adopts a natural cooling mode to carry out cooling, so that the cooling time consumption between detection is too long, and the detection efficiency is influenced.
Owner:王金海

Detection device applied to automatic detection of performance of pipeline gas self-closing valve

PendingCN114486234AAccurate and controllable lifting strokeFlexible working rhythmMeasurement of fluid loss/gain rateVolume/mass flow measurementStructural engineeringInlet pressure
The invention discloses a detection device for automatically detecting the performance of a pipeline gas self-closing valve, and the detection device comprises a working rack, and a plurality of groups of tool positions, a gas inlet detection device and a gas outlet detection device which are disposed on the working rack, and the plurality of groups of tool positions support and are fixedly provided with the self-closing valve. A plurality of groups of tool positions are arranged, detection work can be carried out on the plurality of groups of tool positions at the same time, each tool position is an independent subsystem and does not influence each other, the working efficiency is greatly improved, the air inlet detection device is in butt joint with an air inlet of the self-closing valve, and the air outlet detection device is in butt joint with an air outlet of the self-closing valve. The air inlet detection device comprises an air inlet sealing pressure head, an air inlet pressure head fixing seat and a first air cylinder, the air inlet sealing pressure head is driven by the first air cylinder to stretch out and draw back, front-back movement of the air inlet sealing pressure head is achieved, and then contact and separation of the air inlet sealing pressure head and the self-closing valve workpiece are achieved.
Owner:广东佳骏科技有限公司

Antenna feeder system performance test method and device

The invention relates to mobile communication field, in particular to a technology for detecting performance of antenna feeder system. The invention provides an antenna feeder system performance test method and a device thereof. The method comprises: obtaining actual power of a mobile terminal in receiving signals; comparing the actual power with the power threshold value of the mobile terminal in receiving signals, and confirming the performance of the antenna feeder system, wherein the signal receiving power threshold is confirmed according to the carrier wave transmitting power and the carrier wave space transmission loss of the signals. As the anticipated power value of the mobile terminal in receiving signals can be measured and calculated according to the signal carrier wave generation power, signal gain and loss in carrier wave transmission process, and the anticipated power value and the signal receiving actual power value reported by the mobile terminal can be compared, in the process of confirming antenna feeder system performance, a test person only needs to carry with a common mobile terminal to finish test on antenna feeder system performance, thus saving labor and material, and improving efficiency in testing antenna feeder system performance.
Owner:XINYANG BRANCH HENAN CO LTD OF CHINA MOBILE COMM CORP

Bending degree detection device and detection method for linear lamp strip production

The invention discloses a bending degree detection device for linear lamp strip production and a detection method, and belongs to the technical field of lamp strip detection.The bending degree detection device for linear lamp strip production comprises a supporting cover, a connecting frame connected to the side wall of the supporting cover, a stretching box capable of horizontally moving in the supporting cover and a bending degree detection device for linear lamp strip production, the first sliding plate slides in the stretching box, the pressure sensor and the second sliding plate are fixed to the first sliding plate, and the first spring is connected between the pressure sensor and the inner wall of the stretching box; the end, extending out of the stretching box, of the second sliding plate is fixedly connected with a connecting plate, and multiple sets of inserting grooves are formed in the side wall of the connecting plate. By inserting a plurality of groups of test plates, the tensile capacity under different bending degrees can be detected, the detection requirements of different bending degrees can be met, and the detection function is greatly improved.
Owner:斯巴达光电(广东)有限公司

Membrane disc flux and bubble point detecting device

The invention provides a membrane disc flux and bubble point detecting device. The membrane disc flux and bubble point detecting device is characterized in that the membrane disc flux and bubble pointdetecting device comprises a water tank, a base located in the water tank, three or more threaded columns connected to the base, nuts matched with the threaded columns for using, a lower clamping plate, a membrane disc, an air cylinder, an upper clamping plate connected to a piston rod of the air cylinder, a main pipeline, a first branched pipeline, a second branched pipeline, a first electromagnetic valve, a pressure gauge, a second electromagnetic valve, a flowmeter and a self-priming pump, wherein the first branched pipeline and the second branched pipeline communicate with the main pipeline, the first electromagnetic valve and the pressure gauge are sequentially mounted on the first branched pipeline, and the second electromagnetic valve, the flowmeter and the self-priming pump are sequentially mounted on the second branched pipeline. Through unique design, a membrane disc flux detecting device and a membrane disc bubble point detecting device are integrated, the performance detecting efficiency of the membrane disc is improved, the equipment cost is saved, and the workload of technicians is reduced; the ventilation and liquid pumping processes are controlled through the firstelectromagnetic valve and the second electromagnetic valve, and the utilization rate of the membrane disc flux and bubble point detecting device is increased; and the detecting device is provided with the air cylinder, the upper clamping plate and the lower clamping plate compress the membrane disc through the air cylinder without manual control, and thus convenience and rapidness are achieved.
Owner:FEATURE-TEC (WUXI) FILTRATION TECH CO LTD

Automatic testing device for vibrating motor production

The invention discloses an automatic testing device for vibrating motor production. The automatic testing device for vibrating motor production comprises a feeding belt, a testing jig and an NG box, the feeding belt is installed at one end of a rack, and a discharging belt is installed at the other end of the rack. When vibrating motors are placed on limiting grooves of motor positioning plates atone ends of testing supports, fourth air pressure rods begin to extend to drive the bottom ends of fixed chucks connected with connecting lugs to move to two ends, then the fixed chucks are driven torotate in the limiting grooves, meanwhile after the vibrating motors are fixed in motor positioning grooves with the help of spring assistance, positive and negative pole testing fixtures are connected with the vibrating motors for performance detection, the waveform, rotating speed, current and noise of the vibrating motors are detected in sequence, automatic testing can be completed when performance testing is conducted on the vibrating motors, personnel and testing stations are saved, the working efficiency of the vibrating motors is greatly improved in performance testing, and the misjudgment phenomenon caused by non-in-place pressing during artificial pressing for testing is eliminated.
Owner:阜南县特立电子有限公司

Device for detecting performance of all-aluminum light-weight container plate

The invention discloses a device for detecting performance of an all-aluminum light-weight container plate. The device comprises a device body, the device body comprises a lower placing frame body and an upper working table, the lower placing frame body comprises a first transverse supporting table top, supporting legs and a first transverse partition plate, the supporting legs are provided with a first supporting leg and a second supporting leg. A first hydraulic telescopic cylinder, a second hydraulic telescopic cylinder and a first water tank are arranged on the first transverse partition plate, a first telescopic section and a second telescopic section are arranged on the first hydraulic telescopic cylinder, a third telescopic section is arranged on the second hydraulic telescopic cylinder, a first net plate is arranged in the first transverse supporting table top, a water collecting tank is arranged at the bottom of the first net plate, and a first water outlet pipe is arranged at the bottom of the water collecting tank. The first water outlet pipe is located on the upper portion of the first water tank, and square grooves are formed in the end faces of the water collecting grooves. Through the arrangement of the first net plate and the first spray head, the detection of the performance of the all-aluminum light-weight container plate is met, the detection is more visual, and the detection efficiency is improved.
Owner:江西江铃专用车辆厂有限公司
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