16 results about "Repeat testing" patented technology

The utility model relates to the technical field of concentrator testing, and provides a concentrator key testing device which comprises a Z-axis longitudinal beam, a Z-axis moving mechanism, an X-axis moving mechanism, a Y-axis cross beam and a pressing executing mechanism. The pressing executing mechanism is composed of a connecting rod mechanism, a pressing gun, a connecting base and a bottom plate, a motor and belt wheels are installed on the bottom plate, and the belt wheels are connected through a synchronous belt. The Y-axis cross beam is connected with the adjustable installation mechanism through the Y-axis air cylinder, and fine adjustment is achieved. The device drives the connecting rod mechanism through the motor to achieve linear motion of the pressing gun, controls the key pressing force and speed, and adapts to concentrator keys of different models. The device can automatically and repeatedly test, reduces manual operation, and improves test accuracy and product consistency.

The invention provides a pillow bearing performance test method and system, and relates to the technical field of pillow detection. Aiming at the problem that a test method in the prior art does not meet test requirements, the method comprises the following steps: selecting a corresponding standardized human body model according to a to-be-tested pillow type target population, and arranging pressure sensing devices at key dissection test points; according to the biomechanical characteristics of the human body, carrying out structure correction on the key contact area of the standardized human body model; adjusting the corrected human body model to a preset sleep posture, and performing multi-degree-of-freedom posture compensation fine adjustment to enable the position relationship between the corrected human body model and the pillow sample to be tested to meet a set reference; continuously collecting pressure related data of each test point; the same preset sleep posture is repeatedly tested for preset times, the collected pressure related data are analyzed and calculated, bearing performance quantitative indexes are obtained, and the quantitative indexes comprise the average pressure, the pressure peak value and the pressure gradient. The test method provided by the invention meets objective, repeatable and bionic quantitative test requirements.

The invention relates to the technical field of electronics, and discloses a double-pulse test method, device and equipment and a storage medium, and the method comprises the steps: obtaining multi-source feature information of a tested device to generate a device feature code; performing a double-pulse test based on the device feature code, and collecting time-frequency domain data of the tested device in the test process; performing oscillation feature recognition on the time-frequency domain data to obtain oscillation feature data; adjusting the operation state of the double-pulse test based on the oscillation characteristic data, and terminating the test until a preset suppression target is met or a preset repeated test threshold value is reached, so as to obtain a final test result; according to the invention, on the basis of feature recognition and data acquisition, continuous oscillation adjustment is realized, the optimal test operation state adaptive to the tested device is generated, the core problems of much manual intervention, long test period and poor oscillation suppression effect of the existing double-pulse test are solved, and the stability of the double-pulse test is improved.

This application relates to a resistance temperature coefficient testing device, comprising: a controller; a temperature control stage assembly electrically connected to the controller, the temperature control stage assembly being used to place a sample to be tested, allowing the sample to be subjected to multiple different temperature environments; a temperature testing element for detecting the temperature value at the location where the sample is placed on the temperature control stage assembly; a resistance detection structure including a clamping assembly and at least one pair of probes, the clamping assembly clamping the sample to the temperature control stage assembly, and the probes simultaneously contacting the sample to form a detection circuit to detect the resistance value of the sample; the clamping assembly including a mounting plate having multiple equally spaced mounting holes, into which the probes are inserted. This device can solve the problem of the inability to quantitatively control the probe spacing during repeated testing, improving testing accuracy; in addition, the multiple equally spaced mounting holes on the mounting plate can simultaneously fix multiple pairs of probes, enabling simultaneous testing at multiple sites and improving testing efficiency.

This application discloses a method, system, device, and storage medium for determining the feasibility of parameters, relating to the field of microfluidics. The method includes: acquiring design parameters to be determined, wherein the design parameters include liquid physical properties, nozzle structural parameters, and driving parameters for driving the liquid ejection; calculating state determination values ​​related to the atomization process based on the design parameters; comparing the state determination values ​​with preset state determination thresholds to determine the atomization state corresponding to the design parameters; and determining that the design parameters pass the feasibility judgment when both the atomization state corresponding to the design parameters and the driving parameters in the design parameters meet their respective preset feasibility judgment conditions. This application eliminates the need to fabricate physical samples of the design parameters and verify the atomization effect through actual testing, avoiding the time and resource consumption caused by repeatedly fabricating samples and conducting repeated tests, thereby shortening the design cycle and reducing development costs.

The invention belongs to the technical field of detection, and particularly discloses a measurement uncertainty evaluation method for measuring immune factors in serum by an ELISA (enzyme-linked immuno sorbent assay) method. According to the method, ELISA detection is carried out on immune factors (such as IL-1beta) in serum of an experimental animal in contact with a medical instrument according to standards such as GB / T16886.20-2015, system analysis comprises nine types of uncertainty sources such as repeated detection, standard substance preparation and sample dilution, the standard uncertainty of each component is calculated through mathematical methods such as rectangular distribution and a least square method, and the standard uncertainty of each component is calculated according to the standard uncertainty. And synthesizing the standard uncertainty and calculating the expansion uncertainty, and finally outputting a standard detection result. The method comprehensively covers the uncertainty source, is rigorous in computational logic and clear in key quality control factors, provides a scientific and complete uncertainty evaluation scheme for medical instrument immunogenicity evaluation and immune factor determination in other experimental scenes, is beneficial to laboratory quality control and detection result optimization, and has wide practicability.

A test socket and a method for manufacturing the same are disclosed, which can effectively prevent deformation during repeated testing while reducing adhesion of the test element, terminal damage, and repulsion force on the test element. A test socket according to an embodiment of the present invention comprises: a conductive part array including a plurality of conductive parts arranged spaced apart along a horizontal direction; a first insulating part formed between the plurality of conductive parts, insulating the plurality of conductive parts and supporting the conductive part array; a supporting film having a film through hole formed vertically at each position corresponding to the plurality of terminals of the test element; and a second insulating part interposed between the first insulating part and the supporting film, provided to have a hardness lower than that of the supporting film and higher than that of the first insulating part.

The invention belongs to the technical field of wear resistance testing, and particularly relates to a wear resistance testing device and method for a luggage pull rod. Comprising a test box; a notch is formed in the test box; a box body is placed in the test box; the box body is positioned in the notch; a pull rod is slidably arranged on the side of the box; a position control clamping unit is arranged on the test box; the position control clamping unit comprises a first base; the two first bases are both mounted at the bottom of the test box; the two ends of the position control lead screw are connected to the opposite faces of the two first bases correspondingly. Two thread areas are symmetrically arranged on the position control screw rod; the thread directions of the two thread areas are opposite; the double-action testing device is arranged on the testing box; the double-action testing device comprises a limiting chute which is arranged at the bottom of the testing box in a penetrating manner; the limiting chute extends to the inner bottom surface of the test box; the pull rod can be smoothly pulled by the device, the device is prevented from being clamped due to the self-locking function of the device in the testing process, the testing effect and efficiency of the device are improved, and the limitation of the device in practical application is reduced.

The invention relates to the technical field of software testing, in particular to an automatic software test case generation method and system based on machine learning, and the method comprises the steps: S1, generating an initial population matrix; s2, calculating an action selection probability and selecting an action operator; s3, generating an action result vector; s4, forming a comprehensive index vector; s5, calculating the fitness score of the current iteration round; s6, under the condition of local convergence or insufficient coverage, dynamic step length updating is carried out on the strategy parameters; s7, step length updating is carried out on the coverage initial excitation weight and the diversity initial excitation weight; and step S8, outputting a test data set with an optimal coverage rate and removing structural repeated test samples. According to the method, the test case coverage rate is optimized by dynamically adjusting strategy parameters, diverse incentive weights and removing coverage structures, the local convergence problem is solved, and the automatic test efficiency and comprehensiveness are improved.

The invention relates to the technical field of audiology detection, and provides a broadband tympanic chamber immittance map measurement method and system based on constant voltage-repeated broadband excitation, and the method comprises the steps: 1, standard sound calibration; 2, setting parameters before testing; 3, performing test preparation and wearing detection on the patient; 4, single-air-pressure-point constant-pressure control and stabilization are carried out; 5, broadband excitation playing, signal acquisition and quality guarantee are carried out; 6, performing frequency domain analysis and data storage; 7, multiple air pressure points are repeatedly tested; step 8, performing three-dimensional visualization and report generation; the broadband acoustic signal is adopted as an excitation source, the full-band acoustic response can be synchronously excited through single playing, and point-by-point frequency scanning in a traditional method is not needed; the single complete test time is shortened to be within 30 seconds from several minutes of traditional equipment, so that the detection efficiency is greatly improved, and the tolerance and experience of a patient are improved.

The application provides a pillow supporting performance test method and system, and relates to the pillow detection technical field. In view of the problem that the test method in the prior art does not meet the test requirements, the application selects a corresponding standardized human body model according to a target human group of a pillow to be tested, and arranges a pressure sensing device at key anatomical test points; according to the human body biomechanics characteristics, the key contact areas of the standardized human body model are structurally modified; the modified human body model is adjusted to a preset sleeping posture, and multi-degree-of-freedom posture compensation fine adjustment is performed, so that the position relationship between the modified human body model and the pillow sample to be tested meets a set reference; the pressure related data of each test point is continuously collected; the preset sleeping posture is repeatedly tested for a preset number of times, and the collected pressure related data is analyzed and calculated to obtain supporting performance quantitative indexes, and the quantitative indexes include average pressure, pressure peak value and pressure gradient. The test method meets the objective, repeatable and bionic quantitative test requirements.

The utility model relates to test equipment technical field and disclose a kind of double-cylinder synchronous rotation's aggregate abrasion testing machine, including base, the inside fixed mounting of base has speed reducer, the output shaft fixed mounting of speed reducer has carousel, the end of carousel far from speed reducer is centrally located Fixed mounting has lug, the end of lug far from carousel is centrally located Fixed mounting has stud.This double-cylinder synchronous rotation's aggregate abrasion testing machine, by the matching of recess and lug, the detachable installation of sample disc and carousel can be realized, and by the joint connection of recess and lug, the accurate transmission of carousel and sample disc is realized, reduce the abrasion of sample disc and carousel, while it is convenient for staff to replace different size sample disc according to different size abrasion material, by setting two groups of same sample disc and dust extraction component, different test can be realized for a variety of different abrasion medium and accessories, and repeated test can also be carried out on a point of one material.

The invention discloses an incremental test method suitable for action logic verification of a relay protection device, and relates to the technical field of automatic test of a power system. Comprising the steps of constructing a protection action logic model library as a reference version; comparing the current configuration data with the reference version to extract logic difference information; analyzing the change influence range based on the logic dependency graph, identifying the influenced downstream logic nodes and generating an influence set; screening preset use cases according to the influence set and generating newly added use cases to form an incremental test use case set; and driving the tester to inject a test excitation signal containing analog quantity and switching quantity, collecting action feedback and generating a test report. Through modeling and increment strategies, automatic generation of the test case is realized, only the affected part is accurately verified, the workload of repeated testing is reduced, and the efficiency and accuracy of the regression test of the relay protection device are improved.

The application relates to the technical field of viscosity and rheological property measuring devices and testing methods, and relates to a full-automatic funnel viscosity and rheological property measuring instrument and a testing method. The former comprises a viscosity testing mechanism, a rheological property testing mechanism and a bearing support. The viscosity testing mechanism comprises a conical funnel and a mud tank, a grouting pipe is communicated with the upper part of the conical funnel, and the outlet at the bottom of the conical funnel is fixed in the mud tank. The measuring instrument integrates the viscosity testing mechanism and the rheological property testing mechanism, has viscosity testing and rheological property testing functions, is compact in structure and function, is convenient to carry, can realize full-automatic repeated testing of conventional performance of drilling fluid, has consistent repeatability of operation, greatly saves personnel cost, reduces labor intensity, realizes automatic measurement through single-chip microcomputer control of the running state of the measuring instrument, and has strong popularization and application value.

This invention provides a sealing and preservation device for plasticizer testing samples, relating to the field of plasticizer testing. The device includes a sample bottle with a fixed sealing ring at its inlet end. A sealing sheet is attached to the sealing ring via an elastic sheet A. Inert gas is introduced into the inlet end of the sample bottle, creating a positive pressure inside. The gas causes the sealing sheet to compress the sealing ring. This device utilizes the inert gas stored in the gas chamber to replenish gas pressure and propel the sample. It is easy to operate and allows for multiple samplings. After each sampling, inert gas is refilled into the sample bottle to replenish the gas chamber again, adapting to the needs of multiple sampling and repeated testing in plasticizer detection. It solves the problems of existing ampoule sealing methods that prevent repeated sampling and the easy entry of air when using ordinary screw caps for sampling.

The invention discloses a pose analysis method and system for a large-scale test water tank vibration reduction and isolation device based on vibration acceleration monitoring data, and relates to the technical field of vibration monitoring modal analysis, and the method comprises the steps: arranging vibration accelerometer monitoring points on the vibration reduction and isolation device, carrying out the preprocessing of data collected after spectrum analysis, and carrying out the analysis of the vibration acceleration monitoring points; and deducing the modal shape of the vibration reduction and isolation device. According to the invention, the signal-to-noise ratio and the analysis precision of the original vibration signal are effectively improved; secondly, a frequency domain quadratic integration method is adopted to accurately reconstruct a displacement signal, and the problem of error accumulation in time domain integration is avoided; thirdly, on the basis of the amplitude and phase information under the main vibration frequency, the modal shape of the device is automatically judged, and the workload of manual intervention and repeated testing is reduced; the whole process can be integrated in an automatic analysis system, real-time monitoring and graphical display are supported, the timeliness, stability and engineering practicability of pose state evaluation are improved, and reliable technical support is provided for guaranteeing a high-precision underwater acoustic test environment.