32results about How to "Eliminate operational errors" patented technology

The invention discloses a method for detecting the content of nicotine in smoke of an electronic cigarette. The detection method comprises the following steps: (1) preparing an extracting agent; (2) preparing a standard series solution of the nicotine; (3) connecting a Cambridge filter and an absorption bottle with a smoking machine in series and capturing the smoke of the electronic cigarette; putting the Cambridge filter for capturing the smoke and absorption liquid into a tapered bottle and carrying out vibration extraction; (4) moving away an extracting liquid filtering membrane and analyzing filter liquid by using a gas chromatographic method; and (5) drawing a standard curve and calculating the content of the nicotine in the smoke of the electronic cigarette. The method disclosed by the invention has the advantages of high sensitivity, good selectivity, simplicity in operation and high repeatability, and can realize the accurate quantitative analysis of the nicotine in the electronic cigarette.

The invention belongs to the field of asphalt, and in particular relates to a method for monitoring the softening point of asphalt. The method comprises the following steps: a) in the asphalt production process, monitoring the specific gravity of asphalt and the asphalt temperature in the output pipeline of the asphalt product; b) according to the monitored The asphalt specific gravity and asphalt temperature data and the pre-fitted asphalt softening point calculation formula are calculated to obtain the asphalt softening point; the asphalt softening point calculation formula is obtained according to the following steps: extracting multiple samples from the output pipeline of the asphalt product, The specific gravity, temperature and softening point of the asphalt were analyzed by linear regression, and the calculation formula of asphalt softening point was obtained by fitting. The monitoring method provided by the invention can realize the on-line monitoring of the softening point of the asphalt finished product in the asphalt production process, without frequent manual sampling and traditional softening point detection operations.

The invention relates to a metallic nano material toxicity detection board and a detection method thereof in the nano technical field. The toxicity detection board comprises a base, a board cover and a detection cell, and is characterized in that the base is a rectangular container; a plurality of vertical positioning columns are arranged on the inside bottom of the base so that the edges of the detection cell can be located on the base; and clasping edges are arranged at the periphery of the board cover to clasp the edges of the base. The method of the invention takes the possible degradation and metabolic components inside modification molecules into full consideration, and determines the cytotoxicity grade of metallic nano particles through a double step detection method, so that the selection of proper metallic nano particles and the modification molecules in future can be standardized and unified, and easy to repeat and compare.

The invention discloses a drilling direction positioning device and an application method thereof. The drilling direction positioning device comprise a bass, a foundation seat, and a positioning rod; a circular dial is installed on the upper end surface of the base; scales are formed in the circumferential surface of the circular dial; the foundation seat is movably connected with the upper end surface of the circular dial through a vertical rotation shaft; the foundation seat is of hemisphere shape; a semicircular slot is formed along the radius plane where the central axis of the foundation seat is located; the positioning rod is arranged in the semicircular slot in a flexible connection mode through a horizontal rotation shaft; scales are formed along the outer circumferential surface of the semicircular slot; a position limiting component I is installed on the base to limit the movement of the base; a position limiting component II is installed on the foundation seat to limit the movement of the position rod; and a fixing part used for fixing arrangement is installed on the lower end surface of the base. Compared with the prior art, the drilling direction positioning device has the beneficial effects that errors of azimuth angles can be corrected and changed at any time; operation errors and system errors of the drilling direction positioning can be removed to some extent; and the accuracy of drilling results is enhanced.

A memory element including a memory layer that retains information based on a magnetization state of a magnetic material is provided. In the memory element, a magnetization pinned layer is provided for the memory layer through an intermediate layer, the intermediate layer is formed of an insulator, spin-polarized electrons are injected in a stacking direction to change a magnetization direction of the memory layer, so that information is recorded in the memory layer. Also, a ferromagnetic layer forming the memory layer has a magnetostriction constant of 1x10<-5 >or more.

A method for extracting complex window space information in a space data engine is disclosed, which provides an idea of storing linear and polygonal layer data in different strips according to scanning stripes, wherein corresponding auxiliary tables are built for linear and polygonal databases, and the storage of space data in different strips is realized, so that the extraction operation efficiency of the space information is improved by means of the auxiliary tables; and while extracting the complex window space information, complex space relationship operation is converted into intersection or overlap determination between units on the same stripe, thus greatly simplifying the complexity degree of operation, avoiding the processes of intersection of a lot of arc segments, break and recombination of the arc segments and the like, improving the operation efficiency and eliminating operation errors. The method has incomparable advantages in contrast with the traditional vector diagramelement space relationship operation, which are mainly presented in simple algorithm, small amount of programs and high processing efficiency; and in relation to the traditional element space relationship operation method of a pure raster graph, the method has the advantages of low operation quantity, high operation speed and high accuracy.

The invention discloses a method for measuring the pressure water absorption rate of ceramsite and a method for reducing the slump loss of ceramsite concrete pump pressure, and proposes the concept of ceramsite pressure water absorption rate and adopts the method of immersing the sample in water and weighing together. Determination, and provides a method for determining the appropriate mixing water margin to reduce the slump loss of ceramsite concrete through the measured ceramsite pressure water absorption rate. The problem of increased slump loss of concrete is caused by ceramsite absorbing a large amount of water in concrete slurry.

The invention discloses a parameter measurement method and system. The parameter measurement method specifically comprises the following steps of extracting a target object in a shot image; extracting the outmost contour of the target object from the target object; and calculating the shape parameters of the target object according to the outmost layer contour. According to the method, the problem of mass turtle shape parameter data batch processing is solved, the random errors and the operation errors are effectively eliminated, meanwhile, the external stimulation is reduced for high-value east brocade turtles, the safety is improved, and a digital data storage mode provides a basis for the later data tracking and analysis.

The invention discloses a method for improving the calibration accuracy of an industrial robot tool coordinate system, which belongs to the field of industrial robot application control. In the common "four-point method" tool coordinate system calibration process, this method gives an accuracy evaluation for each point to be calibrated. When the accuracy meets the requirements, the next calibration point can be calibrated, and all calibration points are recorded. Finally, an overall accuracy evaluation is given to the final calibration results. This method is convenient for the user to teach a reasonable calibration point, eliminates the human error caused by the user during the calibration process, and obtains a high-precision tool coordinate system calibration result, thereby eliminating the trajectory tracking caused by the inaccurate tool coordinate system calibration Motion problems such as low precision. The tool coordinate system calibration lifting algorithm proposed by the invention does not need to add any calibration device, and the operation is simple and convenient.

The invention discloses a surgical minimally invasive surgical robot, which belongs to the technical field of medical instruments, and includes an end effector. The end effector includes a connected upper platform and a lower platform. The upper platform is provided with two intersections for clamping medical instruments. The set clamps are connected by rotation between each clamp and the upper platform. The end effector also includes a transmission arm, a positioning seat and an intermediate shaft. There are two transmission arms, one of which is hinged to the end of a clamp , the other transmission arm is hinged with the end of the other clamp, the other ends of the two transmission arms are hinged with the positioning seat, and the positioning seat is connected with the intermediate shaft; the robot also includes a driving device, and the driving device includes The first drive device for driving the lower platform to realize translation and swing, and the drive device for driving the intermediate shaft to realize rotation. Utilizing the present invention to replace human hands to clamp medical instruments reduces the operation injury caused by human hand shaking during operation.

A threading auxiliary device and fast threading method for glass steel pipe production, the threading auxiliary device includes a threader body, the threader body has a plurality of sides, each side is connected in turn to form a closed annular surface, and at least two of each side are Adjacent side surfaces are respectively provided with a set of guide teeth, each set of guide teeth includes N guide teeth arranged in sequence at a certain interval A, and the number N of guide teeth of each set of guide teeth 3 is the same, The spacing A of each guide tooth in each set of guide teeth is different; the head of each guide tooth has a threader body with a depth of H1, and the bottom of the threader groove is connected to the guide tooth. The side of the distance is H2. When the annular surface of the threader body rotates by itself. The invention realizes fast threading, solves the fuzzing phenomenon of glass filaments during manual threading, reduces artificial uncertainty, and improves process quality and production efficiency.