5results about How to "Accuracy requirements met" patented technology

The invention relates to the technical field of remote sensing data processing, in particular to a VANI data batch production method based on a model builder, and the method comprises the steps: 1, collecting remote sensing data and boundary data of a research area; step 2, EVI data batch preprocessing; step 3, performing batch preprocessing on DNB data; and step 4, carrying out VANI data batch production. The VANI data batch production technology is adopted, the EVI data set and the DNB data set can be read and preprocessed in batches, automatic batch production of the VANI data is achieved, the production efficiency is greatly improved, and it is ensured that the quality of the produced VANI data meets the precision requirement. The model builder is adopted for data production, manual intervention is effectively reduced, the error rate is reduced, and the stability and consistency of the data production process are guaranteed. The production method has high flexibility and expandability, the data production scale can be conveniently adjusted and expanded according to requirements, the method adapts to production tasks of different scales and complexity, and the constantly changing service requirements are met.

The application relates to a positioning and mounting method of a continuous casting machine casting nozzle, which comprises the following steps: S1, centering adjustment device setting; S2, positioning device setting; S3, box body mounting and adjustment; S4, substitute module mounting; S5, refractory one-time pouring; S6, nozzle plate mounting; S7, refractory secondary pouring; the application takes the positioning device as a positioning reference, aligns the long side of the cross-shaped groove in the middle of the positioning device with the transverse center line of the continuous casting machine, aligns the short side of the cross-shaped groove in the middle of the positioning device with the casting flow center line of the continuous casting machine, adjusts the horizontal position of the box body through a horizontal jackscrew device, makes the position of the box body meet the accuracy requirement of the positioning device, carries out one-time pouring layer construction and preliminary positioning of the nozzle plate through the substitute module, and then accurately controls the accuracy of the nozzle plate and the positioning device through the cross-shaped scale, so that high-precision positioning of the box body, the nozzle plate and the control line of the continuous casting machine is finally realized.

The invention discloses a ground offset test circuit, method and device, and the circuit comprises a single-chip microcomputer module which is used for controlling the operation of the circuit, including generating a control signal, adjusting the output of a voltage generation module, and controlling a switching circuit; the first voltage generation circuit is a Us end 1V voltage generation circuit, comprises an operational amplifier U1, resistors R1 and R2 and a capacitor C1, and is used for generating + 1V offset voltage and applying the + 1V offset voltage between the Us positive end and the AGND; and the second voltage generation circuit, namely a GND end 1V voltage generation circuit, comprises an operational amplifier U2 and resistors R3, R4 and R7, and is used for generating-1V offset voltage and applying the-1V offset voltage between the GND end and the AGND. According to the invention, by designing the independent Us end 1V voltage generation circuit and GND end 1V voltage generation circuit, accurate + 1V and-1V offset voltages are respectively generated, and the strict requirements of the ground offset test on positive and negative offset can be met. Compared with the prior art, the circuit provided by the invention can more accurately adjust the offset voltage, and ensures the stability of signal reference in various test scenes.

This invention relates to the field of machining technology, and particularly to an intelligent matching method and system for slow wire EDM machining parameters. The method involves loading electrode wire parameters and workpiece parameters to configure machining parameters and obtain first machining parameters. When the monitored environmental parameters are inconsistent with the standard environmental parameters, the method uses the electrode wire parameters, workpiece parameters, first machining parameters, and monitored environmental parameters as constraints to search the slow wire EDM machining sample set, performs lumped value evaluation, and obtains the fitted dimensions of the workpiece after cutting. When the dimensional deviation between the fitted dimensions and the standard dimensions of the workpiece after cutting is less than or equal to the dimensional tolerance, metal cutting control is performed based on the first machining parameters; otherwise, the first machining parameters are updated. This invention improves the accuracy and stability of metal cutting using slow wire EDM, reduces trial cutting costs and scrap rates, increases machining efficiency, and reduces production burden.

The invention belongs to the technical field of plasma cutting, and particularly relates to millimeter wave therapeutic apparatus plasma cutting equipment and method.The millimeter wave therapeutic apparatus plasma cutting equipment comprises a base and a workbench fixed to the surface of the base, and a fixing assembly is installed in the workbench; four corners of the surface of the millimeter wave therapeutic instrument shell can be pressed and fixed, it is guaranteed that the millimeter wave therapeutic instrument shell cannot move in the cutting process, stable supporting force can be provided in multiple directions, machining errors caused by unstable positions are avoided, the accuracy and consistency of cutting lines are guaranteed, and the machining efficiency is improved. The quality problems of uneven cutting surface, size deviation and the like caused by shell shaking are prevented, the qualification rate and the overall quality of products can be improved, manual intervention is not needed in the whole process, the automation degree is high, the operation accuracy and timeliness are greatly improved, the problem of inaccurate positioning caused by manual judgment delay or errors is effectively solved, and the production efficiency is improved. And powerful guarantee is provided for high-precision machining.