91results about How to "Human factors are small" patented technology

Provided is a measuring device and a calibration method for optical lens distortion. The measuring device comprises a single star light simulator, an adjusting rack, a to-be-tested lens, a CCD (charge coupled device) camera, a one-dimensional air flotation turntable, an angle encoder, a computer and an optical platform. The calibration method includes the steps of using a centroid localization algorithm to determine centroid position coordinates of a star point image when the to-be-tested lens is under different fields of view, establishing a calibration model for the to-be-tested lens distortion based on the distribution of the centroid position coordinates of the star point image under the entire field of view, and realizing the calibration of the distorted to-be-tested lens. The measuring device and the calibration method for the optical lens distortion has the advantages that the device is simple; the method is convenient; measurement accuracy is high; and the optical lens distortion can be easily measured and calibrated.

The invention discloses a rapid detecting device and a detecting method of the precision of blades of a gas turbine. A detected blade is positioned by a blade positioning device; and profile measuring devices are symmetrically arranged at two sides of the blade positioning device and used for acquiring profile data of the section of the blade. By adopting the rapid detecting device and the detecting method, the workload for acquiring blade conic data is greatly reduced; influence from personal factors is little and the data acquiring speed is high; contact type measurement by a measuring pen is adopted with high measurement precision; the arithmetic of the profile data of a discrete section is simple and mature, is high in precision and is easy for subsequent error analysis calculation; the height and the quantity of the profile data is selective and adjustable and has high flexibility; the mechanical structure is simple, the cost is relative low and the measurement precision is ensured.

The invention discloses a novel concrete intelligent temperature control system and method. The system comprises a main server, an intelligent monitoring main control room and branch control stations. The main server of the system is responsible for data storage, management, calculation, analysis, pre-warning, forecasting and instruction transmission of the whole system and can dynamically and visually display all types of temperature control information in form of graphs, lists and lines, and related workers can conveniently conduct supervision and management. The intelligent monitoring main control room directly distributes instruction information of the main server to all the branch control stations and can send temperature control information of all the branch control stations to the main server in a concentrated mode. The branch control stations draw all monitoring devices to the system so that management and information transmission can be conveniently conducted. By means of the modularized, unitized and systemic design, the true temperature and stress, influenced by the true environment where various factors exist at the same time, of concrete are achieved, man-made influence factors are reduced through intelligent water injection, and rapid and high-quality construction of large-size concrete are ensured under the complex environment conditions.

The invention discloses a tire and pavement contact pressure characteristic-based pavement skid resistance condition evaluation method. The tire and pavement contact pressure characteristic-based pavement skid resistance condition evaluation method comprises the following steps: 1. adopting at least two pressure induction films, placing the pressure induction films on a bottom surface of a tested automobile tire and between the tire and different pavements to be tested; 2. contacting the tire of the tested automobile to the pressure induction film in a dead weight manner; 3. taking out the pressure induction film; (4) scanning the pressure induction film to acquire the pressure intensity value of each tested point of each pressure induction film; (5) determining the area M having the pressure intensity value of 0-0.2MPa of the contact surface of each pressure induction film and the tire; (6) calculating P which is equal to M/the area of the contact surface of the pressure induction film and the tire respectively; and (7) comparing all P values and evaluating the pavement skid resistance of all pavements to be tested. According to the method, the pressure induction film is utilized for measuring the pressure distribution of the tire and the pavement, the pavement skid resistance condition can be evaluated and the evaluation result is accurate; and besides, according to the tire and pavement contact pressure characteristic-based pavement skid resistance condition evaluation method, the cost is low, the use is convenient and the popularization is easy.

The invention provides a demountable tanker truck and a hydraulic system thereof. The hydraulic system comprises a hydraulic pump, wherein the hydraulic pump supplies oil to a main oil cylinder and a moving oil cylinder through a multi-way valve, the multi-way valve at least comprises a main oil cylinder reversing valve and a moving oil cylinder reversing valve, and the hydraulic system also comprises a first position detection device and/or a second position detection device. The moving state of the main oil cylinder can be controlled according to the first position detection device, and the moving state of the moving oil cylinder can be controlled according to the second position detection device. The synchronism of the operation process of the main oil cylinder can also be ensured, and in addition, the protection on a main oil path can also be realized. The demountable tanker truck and the hydraulic system thereof have the advantages that misoperation can be reduced, the synchronism is high, the anti-impact performance is good, and the like.

The invention relates to a closed stock yard intelligent control system and an intelligent control method with a pre-homogenization function. A closed stock yard comprises a closed material storage shed, a material input system and a material output system. The intelligent control system comprises a material input system control system, a material output system control system and a central control system. Material stacking logic control and collection of the states of all material stacking mechanisms and fault information are achieved through the material input system control system. Material taking logic control and collection of the states of all material taking mechanisms and fault information are achieved through the material output system control system. The central control system comprises a data processing server, an automatic operation device, a material information management device, a central control PLC, a network device and a remote operation table. The systems are connected through an industrial wireless Ethernet. Links of the Ethernet and an industrial control network are industrially established between a central control chamber and all devices to serve as a communication platform for exchange of various types of information, data exchange is conducted through the communication platform, automated layered material stacking is achieved in the material stacking process, multiple material layers are cut at the same time in the material taking process, and pre-homogenization is achieved.

The invention discloses a method for testing vascular endothelial inhibitor biological activity, the method utilizes vascular endothelial inhibitor standard and sample with the same concentration gradient after dilution in multiple proportions to inhibit HUVEC cell proliferation, and detects the proliferate inhibition activity of vascular endothelial inhibitor to HUVEC cells with trace enzyme reaction colorimetry, and then analyzes biological activity of angiogenesis inhibition of vascular endothelial inhibitor. The method uses the vascular endothelial inhibitor standard to correct testing errors of vascular endothelial inhibitor samples in different batches, which causes the cell proliferation inhibition activity testing results of vascular endothelial inhibitor have specificity and repeatability, and overcomes the defects that existed in prior vascular endothelial inhibitor activity testing method that the repeatability is bad, the method can not be unified, and the method can not meet the needs of large scale production and multiple-batch quality control.

The invention discloses an explosive column stress measurement device under low-speed hammer-dropping impact loading, aiming at solving the problems that the current measurement device measures force indirectly, a sensor cannot be calibrated secondarily after measurement and the operation in the testing process is complex. The explosive column stress measurement device is composed of a strike rod, a stressed cap, an upper striking column, a sample pipe, a sample, a lower striking column, a pressure sensor and a striking anvil. The explosive column stress measurement device can directly measure the sample stress and has a simple operation process, and the sensor can be calibrated after measurement. The explosive column stress measurement device can measure the stress of the explosive column under low-speed hammer-dropping impact loading, and is both suitable for fragile explosive columns and viscoelastic fragile explosive columns.

The invention relates to a measuring method for quantification of central looseness of a casting blank. The method utilizes a principle that the density of a loose part is different from the density of a compact part, so that the central looseness can be described quantitatively. Moreover, the method utilizes the Archimedes principle to autonomously design a casting blank density measuring device. The density measuring device is utilized to measure the densities of a compact part specimen and a loose part specimen of the casting blank, respectively measure the mass of the specimens in water and air, and compute the densities of the specimens so as to quantitatively describe the central looseness of the specimens. Compared with the traditional method that after hot acid corrosion, naked eyes observe to quantitatively grade the central looseness of the casting blank, the measuring method has the advantages of no corrosion, accurate evaluation, small human error, superior measurement environment, visual and clear result and the like, therefore the measuring result of the quantification of central looseness of the measuring method has a more realistic and workable important guiding significance on field production, such as continuous casting, rolling and the like.

The invention relates to a surfactant composition and its application. The application contains polyoxyethylene nonyl phenyl ether and an anionic surfactant. The invention also relates to a method for evaluating the point load performance of a plastic tube by using the surfactant composition. The use of the surfactant composition in environmental stress crack resistance evaluating test and low speed crack increase resistance evaluating test substantially shortens the evaluating time.

The invention discloses a vacuum pulse hydrogen annealing apparatus for electric pure iron. The apparatus comprises a furnace body, a diffusion pump, a furnace lid, a flexible air inlet pipe, a flexible air outlet pipe, a butterfly valve and a diffusion pump air outlet pipe, wherein the furnace body is provided with the furnace lid and is connected with the diffusion pump, the flexible air inlet pipe of the diffusion pump is provided with a first solenoid valve, the diffusion pump air outlet pipe of the diffusion pump is provided with the butterfly valve and two air outlets, the air outlets are located at two sides of the butterfly valve and mutually connected through the flexible air inlet pipe, and the flexible air inlet pipe is provided with a second solenoid valve. According to the invention, an automatic control system is additionally arranged, process is simple and is easy to operate, the degrees of control accuracy and automation are improved, and manpower is saved.

The invention relates to a method for automatically checking the apparent quality of a digital model, belonging to the field related to the design of aircraft parts. According to the industry standardin aircraft field, Enterprise standards or user-defined project management regulations, the selection of apparent quality inspection items, the use of CATIA open secondary development interface to form a part of the surface quality automatic inspection tools, aircraft parts CATIA surface quality of the rapid inspection and inspection results output management. The method realizes modular management and has the advantages of wide application range, simple maintenance and high inspection efficiency.

The invention provides a welding method for ice-resistant water riser, which changes the original V-shaped groove into a symmetrical X-shaped groove; the longitudinal seam and the circular seam welded with the joint are welded by internal and external submerged arc welding; the joint and the pipe body weld the ring The inner seam is first welded by the submerged arc welding manipulator, and the outer groove is filled after the outer root is cleaned and polished; it has the advantages of high speed and high efficiency.

The invention discloses a grease quantitative analysis method based on a near-infrared transmission and reflection spectrum technology, which comprises the following steps: S1, collecting a pluralityof grease samples, and carrying out calibration wet chemical detection; s2, formulating a grease fatty acid reference standard of each grease index; s3, synchronously carrying out near infrared spectrum scanning on the collected grease sample; s4, through calibration software OPUS8.1, according to the wet chemical detection value calibrated by the grease sample in the S1 and the near infrared spectrum in the S3, carrying out spectrogram preprocessing; according to a spectral residual error, a Mahalanobis distance and a component density value, rejecting an abnormal spectrum and a wet chemicalvalue, establishing a grease quantitative model by applying a partial least squares method; s5, performing algorithm verification on the established quantitative model, and determining an optimal quantitative model; s6, performing blind verification on the quantitative model; s7, performing near infrared spectrum scanning on the grease sample to be detected to obtain a prediction result; and S8, analyzing the fatty acid result of the to-be-detected grease sample obtained by the quantitative model according to the grease fatty acid reference standard formulated in the S2, and identifying the adulteration condition.

The invention discloses a method for detecting and analyzing small-size non-metallic inclusions in steel by using a scanning electron microscope, and mainly solves the technical problems of low quantitative analysis precision and poor stability of the small-size non-metallic inclusions in the steel in the prior art. According to the technical scheme, the method for detecting and analyzing the small-size non-metallic inclusions in the steel by using the scanning electron microscope comprises the following steps: (1) preparing a metallographic sample, and embedding the surface of the sample to be detected by using a hot embedding machine; grinding, polishing and cleaning the embedded sample and pasting aluminum-foil paper on a non-analysis area on the edge of the sample to obtain a metallographic sample; 2) regulating and controlling scanning electron microscope and energy spectrum detection parameters; (3) detecting inclusions; and 4) analyzing the inclusions, setting a classification standard of the inclusions, and analyzing a detection result by utilizing a computer inclusion analysis program to obtain the quantity, size, shape and component information of the inclusions. The method is easy and convenient to operate, high in efficiency and high in precision of qualitative and quantitative analysis of the small-size non-metallic inclusions in the steel.

The invention relates to a light radiation field visual detection method and light radiation field visual detection equipment, and the method comprises the following steps: obtaining a light field image which is formed by visible light emitted by an X-ray machine radiation field indication lamp and shot by a camera module, wherein the light field image comprises an illuminated light field region;acquiring a radiation field image of X-rays emitted by an X-ray machine and shot by the camera module on a radiation field detection plate, wherein the radiation field image comprises a radiation field area; analyzing the light field image to obtain image attributes of the light field area; analyzing the radiation field image to obtain image attributes of the radiation field area; and calculatinga light field consistency parameter of the X-ray machine according to the light field area and the image attributes of the light field area, wherein the light field consistency parameter of the X-raymachine comprises an offset parameter of the light field area relative to the light field area.

The invention discloses a diagnostic control method and device for air conditioner engineering installation. The method comprises the steps that electrifying of an indoor unit of an air conditioner system is known through monitoring, a first prompt message is sent to prompt conducting of vacuumizing operation on the indoor unit of the air conditioner system, an inner connection pipe and an outer connection pipe; and after completing of vacuumizing operation is affirmed, jurisdiction of normal operation of the air conditioner system is provided. Through the diagnostic control method and device for air conditioner engineering installation, the problems that in the prior art, in the air conditioner installation process, the quality of the air conditioner system is possibly lowered due to the fact that an installation worker does not do vacuumizing operation are solved, the precise degree of the air conditioner installation is improved, operation quality after installation of an air conditioner is ensured, and the experience degree of a user to an air conditioner brand is further improved.